Preface
With the maturity of synchronous buck-boost technology, large-capacity mobile power supplies have also become popular. Since the earliest 20,000mAh power bank only has 18W fast charging, the increase in fast charging power not only shortens the charging time of the power bank, but also improves the discharge capacity of the power bank.
The increase in discharge power not only improves the experience of using the power bank, but also expands the use scenarios of the power bank, so that the mobile phone can get the experience of using the original charger. Charging head network has summarized 20 disassembled mobile power banks that support 100W output power, let's take a look at the internal buck-boost scheme and built-in battery brand.
Aohi
Aohi 30000mAh 100W two-way fast charging power bank
Aohi this mobile power supply is made of PC+ABS material shell, with V0 fire resistance, in addition, the front and back are decorated with Apple computer aluminum alloy panels with the same process, implementing the high-value characteristics of MAGCUBE series products. Equipped with 1A1C dual interfaces, it supports QC, PD, PPS fast charging protocols, and has good compatibility with most brands of mobile phones, tablets and laptops on the market. The 30,000mAh capacity and 100W two-way fast charging meet the needs of business travelers, travel parties and other groups for large-capacity and high-power fast-charging power banks.
Through the dismantling of the charging head network, it was found that the mobile power battery pack is composed of 6 BAK N21700CG-50 batteries in series, each battery is insulated, glued on the shell and equipped with an isolation plate to help strengthen the battery pack and isolate from the PCB board, in addition to a thermistor for temperature monitoring.
The PCB board is equipped with two Saiwei CW1274 protection chips to protect the battery pack, in addition, there is a buck-boost circuit for the input and output of the USB-C port, a step-down circuit for the USB-A output, the controller adopts Nanxin SC8815 and SC8101 respectively, and the protocol chip adopts the CS32G020K8U6 of Xinhai Technology to realize the input and output of fast charging. The inductor, capacitor and other devices on the board are glued and reinforced, and the overall material workmanship is good.
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1. Teardown report: Aohi 30000mAh 100W two-way fast charging power bank
ASPIRER is backed up by double power
Backup double power 20000mAh 100W fast charging power bank
This mobile power bank has a 2A1C interface, USB-C single port output is 100W, when used at the same time with USB-A port, it supports 65+22.5W output, and when three ports are output at the same time, the two USB-A ports share 5V3A output, with a total output power of 80W. The power bank has a 65W self-charging capacity, and its own charging speed is also very fast, which is quite practical.
Through dismantling, the charging head network learned that this mobile power bank has 4 strings of 21700 batteries, which uses Yutai ETA3001 battery balancing chip to achieve voltage equalization of the battery pack, and uses Saiwei CW1243 protection chip for battery protection. The protection board and the power bank PCBA module are connected by wire soldering, which are two independent designs.
The internal buck-boost circuit is composed of Zhirong SW7201 bidirectional synchronous buck-boost controller and Xinhai Technology CSU3AF10, which is used for high-power charging and discharging of USB-C port and built-in battery charging and discharging management. The other way is controlled by the Zhirong SW3516P step-down main control chip, which is the step-down output of two USB-A ports. The buck-boost controller launched by Zhirong Technology has now met the application of 100W high-power mobile power supply.
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CHOETECH DIOCO
Diok 26800mAh 100W fast charging power bank
The Diok 100W fast charging power bank uses a metal body shell and sandblasted surface, which is not only strong and protective, but also has a good feel of use. The two A ports support QC2.0/3.0, AFC, and FCP fast charging protocols, and the C ports have 5V3A, 9V3A, 12V3A, 15V3A, 20V5A, and PPS voltage ranges, which are compatible and can be used for fast charging for most mobile phones, tablets, and computers, and the speed is also very fast.
Through the dismantling of the charging head network, it was found that the mobile power supply is composed of a protection circuit and two independent step-up/step-down three-port output circuits. The battery cells are connected in 4 strings and 2 in parallel, which are protected by Cypress CW1353 and Weizhao MOS, and CW1353 also has an equalization function to better protect the battery; USB-C circuit is controlled by Cypress CYPD3171 protocol chip, and the input or output is realized by Nanxin SC8815 for buck-boost voltage; two USB-A ports are bucked by Nanxin SC8102 to achieve single-port fast charging and dual-port simultaneous output power intelligent distribution.
The mobile power supply adopts a metal body shell, which is highly protective and durable, and is equipped with a filter capacitor inside, and the output is pure, and the positive and negative nickel chips of the battery cell are spot welded firmly, and the barley insulating paper is also used to closely paste the insulation, and is equipped with a thermistor for temperature monitoring, so that the overall workmanship of the product is solid.
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DENUXON Drussy
Drusy 20000mAh 100W two-way fast charging power bank
Drussy 123W mobile power supply focuses on large-capacity, high-power, multi-device simultaneous fast charging, supports 100W PD two-way fast charging, whether it is charging equipment or its own power storage, it can quickly resurrect with full blood, which can meet the needs of people who often travel for fast charging. In addition, the shell of the product is made of advanced flocking technology, and it is also carefully designed in terms of appearance and feel, which is very exquisite. Overall, it's a very comprehensive product.
Through the dismantling of the charging head network, it was learned that the design of the power bank adopts a four-way step-up/down circuit, of which the C1 and C2 port circuits are controlled by Baoli Micro PL5500 and PL5501 respectively, and the output voltage is controlled CS32G020K8U6 by Xinhai Technology. The USB-A port is controlled by the Yingjixin IP6525S output. In addition, the wireless charging solution adopts Yingjixin IP6826, Xinmao Micro LP4003 step-down power supply, and MOS tubes are mainly from Nanjing Jiangzhi. Each circuit has a capacitor for filtering, a thermistor for temperature monitoring of the cell, and a protection board. Reliable workmanship.
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GADMEI is a beautiful place
GADMEI 100W 2C1A Bidirectional Fast Charging Power Bank
Jiadimei T2100 mobile power bank adopts a classic black shell design, with 2C1A three interfaces, supports 100W+18W power output, can charge the mobile phone while supplying power to the notebook, and the power supply supports PPS protocol, and the compatibility with fast charging of Android mobile phones is also good, which can meet the daily needs of mainstream consumers.
Through the dismantling of the charging head network, it was learned that this mobile power bank has built-in 6 strings of 18650 batteries, with a battery capacity of 3200mAh, from Chuangming. The battery protection chip comes from Huatai Semiconductor, and HTL6037 supports 4-7 strings of lithium battery protection function. In the mobile power supply part, a full set of Yingjixin solutions are adopted, and two DC-DC chips with high integration protocol functions are IP5389 and IP6538 to achieve dual-port independent fast charging.
Yingjixin IP5389 integrates the synchronous buck-boost controller, protocol chip and main control microcomputer in the traditional buck-boost mobile power supply in one chip, which can meet the complete design of the mobile power supply with only one chip and provide battery temperature protection function. The IP6538 integrates a buck switch, a protocol chip, and a synchronous buck controller for car charging and power bank applications.
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Haycide
Haycide 20000mAh 155W可视移动电源
Haycide's transparent shell power bank not only uses a color LCD screen for the display of power bank parameters, but also uses a transparent shell to observe the internal PCBA module, which is very technological. The power bank has a total output power of 155W, the USB-C1 interface supports 100W charging and discharging, the USB-C2 interface supports 11V5A PPS fast charging, and the USB-A port also supports fast charging.
Through the dismantling of the charging head network, it was learned that this mobile power supply uses four strings of 21700 batteries to form a battery pack, and uses Zhongying SH366006 protection chip to realize the protection function of the battery, and is equipped with a thermistor for temperature monitoring. The power bank has a built-in buck-boost and a step-down circuit. Among them, the buck-boost circuit adopts the CS32G020 protocol chip of Chipsea Technology and the JW3702 synchronous buck-boost controller. The step-down circuit adopts the SW3516H of Zhirong Technology for dual-port output.
The internal MOS tubes of this power bank are all from Astatine, including battery protection tubes, synchronous buck-boost switch tubes, step-down switch tubes and VBUS switch tubes, Adendeman can provide a full range of MOS products for fast charging source products, including outdoor power supply, power bank, multi-port charger and car charger, etc., to meet the application of different occasions.
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HYPER JUICE
HYPER JUICE 2C1A 100W Bidirectional Fast Charging Power Bank
The HYPER JUICE 100W power bank uses an aluminum alloy metal shell, and the surface is sandblasted, which not only feels good but also sturdy and durable, and the 26800mAh capacity allows it to be carried on the plane. The 2C1A ports are equipped with a maximum output power of 100W, 60W and 18W, respectively, and the total output can reach 130W. It can meet the fast charging needs of most mobile phones, tablets, and computers. In addition, a 100W high-quality CC data cable is included, so there is no need to purchase additional ones.
Through dismantling, it was found that this mobile power supply adopts a double-layer motherboard stacking design, using Nanxin buck-boost controller chips SC8815 and SC8701 synchronous buck-boost controllers for two-way Type-C output, and Zhirong's synchronous step-down conversion chip SW3507 for USB-A port output. As well as Youwei Technology's UPD300DO-24QAIG interface controller, PD controller two-in-one ASIC chip and Tianyu FP6601Q protocol IC.
The 8 cells are all Samsung SDI INR18650-35E high-rate 18650 lithium batteries, and are equipped with Saiwei multi-string lithium battery protection IC CW1046 and Nexen's PK616BA battery protection MOS tube, in addition to thermistors for temperature monitoring, with the protection IC equalization function, can provide better protection for the battery pack. The battery cell is pasted with foam glue and barley paper for insulation protection, and the components are reinforced with glue on the PCB board, and the overall workmanship is good.
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iWALK
iWALK 26800mAh 100W two-way fast charging power bank
iWALK's 100W PD two-way fast charging power bank uses an aluminum alloy metal shell, and the surface is sandblasted, which not only feels good but also durable, and the 26800mAh capacity makes it possible to carry it on the plane. Port A supports QC2.0/3.0, Samsung-AFC, and Huawei-FCP fast charging protocols with a maximum output of 18W, C1 port supports QC3.0 fast charging protocol and USB PD3.0 fast charging standard, with a maximum of 100W bidirectional fast charging, and C2 port supports USB PD3.0 fast charging standard with a maximum output of 60W fast charging. In addition, a 30W PD charger is included, which is fully equipped.
Through the dismantling of the charging head network, it was found that this mobile power supply has built-in chips from many well-known manufacturers, such as SC8701 and SC8815 of Nanxin Semiconductor, single-chip controller UPD300 of Weihai Youwei Technology, VS3508AE and VS3618AE chips of DXN EUP3271 and Weizhao Semiconductor, etc., with solid materials. In addition, the inductance and solid-state capacitors on the PCB board are glued and fixed, the interface receptacle is welded through the hole, the battery cell is equipped with a thermistor, and is pasted with foam glue and barley paper for insulation protection, and the aluminum alloy metal shell makes the product more durable and the overall workmanship is excellent.
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LEEMOA慕里
Murray 30000mAh 100W four-port fast charging power bank
This power bank has a built-in 30,000mAh ultra-large capacity battery and supports 100W power, which can meet the long-term power supply needs of laptops. The USB-A port also supports fast charging output, which also has good charging compatibility with traditional devices. And it supports the display of battery percentage, which is more accurate for the display of remaining power.
Through the dismantling of the charging head network, it was learned that this mobile power supply has 6 strings of 21700 batteries, and the battery adopts the CW1073 protection chip of Saiwei Microelectronics, which is used for overcharge, overdischarge and overcurrent protection of the battery pack. The mobile power supply adopts Yingjixin IP5389 synchronous buck-boost chip, which integrates the protocol chip, synchronous buck-boost controller and MCU functions, simplifying the design of multi-string buck-boost fast-charging mobile power supply and reducing the overall cost.
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LVSUN Long Weisheng
Longweisheng 20000mAh 100W magnetic wireless charging power bank
This power bank is designed with a white straight shell and has a 2C1A interface, of which the USB-C1 interface supports 100W power, the USB-C2 interface supports 45W power, the USB-A port supports 24W output, and supports 15W magnetic wireless charging. In addition, the power bank also has a 188 LED digital tube for power display, which supports charging laptops, tablets, and mobile phones, and is very practical.
Through the dismantling of the charging head network, it was learned that the internal use of 4 21700 batteries in series connection of this mobile power bank, the internal step-up and boost SOC chip of the mobile power supply, the wireless charging main control and the battery protection chip are all from Yingjixin, which brings a complete solution for the high-power fast charging mobile power supply. Among them, the IP3254 battery protection chip is used for overcharge, over-discharge, and over-current protection of four string battery packs, and also supports battery balancing function.
Two IP5389 buck-boost SOC chips are used for two USB-C ports inside the power bank, and the chip integrates synchronous buck-boost controller and protocol chip functions, which can simplify the design of multi-series buck-boost fast-charging mobile power supply. The wireless charging adopts IP6808, and the chip integrates the wireless charging master control and full-bridge MOS tube driver, which supports fast charging and power extraction, and can realize the wireless charger design of a single chip.
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MOVE SPEED移速
Shift speed 130W laptop mini power station
In terms of appearance, the 130W fast-charging mobile power bank adopts a flat shape + blue-green shell design, the size is more compact than the conventional 100-watt mobile power supply, which is easy to carry better;The output is equipped with 2C1A three interfaces, with a hidden power display, the overall style is fashionable and versatile, and the aluminum alloy shell + frosted surface treatment also improves the feel, and helps the internal device module to dissipate heat.
In terms of performance, there are two major features, one is the use of dual-channel independent output design, supporting 100W+30W simultaneous fast charging output, which can meet the fast charging needs of notebooks, mobile phones and other devices at the same time, and the other is to add a small current charging mode, which can charge low-power electronic products other than mobile phones and laptop products, so as to achieve both large and small power.
The materials are also quite in place and solid, the internal use of four 21700 cells composed of four strings of battery pack, compared with the traditional 8 18650 cells, the volume is greatly reduced, improve the portability of the product; the PCB scheme of the entire mobile power supply is provided by Moyi Technology, equipped with a number of solid-state capacitors, two independent voltage conversion circuits are controlled by two chips of Nanxin SC8812A and SC8102, and two Nanxin SC2001 chips are selected for protocol control, lithium battery protection and battery balancing chip from BYD Semiconductor, high integration, reliable performance。
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Move speed 80000mAh 130W "light foam" outdoor power bank
This light bubble series light outdoor power bank has a built-in 80,000mAh ultra-large capacity battery, with a 3A2C interface, of which the power bank supports 65W charging power, and the maximum output power is 130W. A single USB-C port supports 100W output power, and two USB-C ports support 65+65W power distribution when the output is at the same time, which can charge two laptops at the same time. In addition, a 65W GaN charger and data cable are included inside the package, so you can use it right out of the box, so you don't need to buy additional accessories.
Through the dismantling of the charging head network, it is learned that the mobile power bank has built-in 4 strings of batteries, and the battery and PCBA module are fixed with independent cavities, which has better protection for the battery. The mobile power supply adopts Silan micro dual-channel protocol chip, which supports two-way synchronous buck-boost and mobile power control, with high integration and simple circuit. One of the buck-boost voltages corresponds to the USB-C1 interface, and the other buck-boost voltage corresponds to the USB-C2, USB-A1, and USB-A2 interfaces.
The power bank is also equipped with RGB LED ambient lighting, which is CSU32P10 by Xinhai Technology for microphone pickup and light control. The battery is fixed with a heat-shrinkable plastic wrap and pasted with double-sided tape to secure the inside of the plastic frame. The impact force is dispersed through the frame structure, and the force is evenly applied to protect the internal battery pack.
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OPSO x DockCase
OPSO x DockCase 100W Fast Charging Power Bank
The OPSO x DockCase 100W Fast Charging Power Bank supports 100W bidirectional fast charging, 60W PD output, and 18W QC fast charging, which is fast whether you are charging a power bank or charging multiple devices. In addition, it comes with a digital display screen that can easily know the power of the power bank, and the 26800mAh/96.48Wh capacity can be carried on the plane while ensuring a large battery life, which is very practical.
Through the dismantling of the charging head network, it was found that the OPSO x DockCase 100W power bank is composed of a protection circuit and three independent step-up/step-down four-port output circuits. Among them, the lithium battery protection circuit is composed of Huatai HTL6014 and Tide MOS;USB-C two circuits are respectively used by Nanxin SC8812A and SC8701 with Tide MOS for buck-boost and output by Youwei Technology USB PD fast charging chip;The third channel uses Nanxin SC8102 for step-down, the USB-A1 interface uses Tianyu protocol IC to control the output, and the USB-A2 port has a fixed output of 5V voltage.
The mobile power supply is equipped with a number of filter capacitors for secondary filtering, and the output is pure; the inductor capacitor and the control chip are glued to help fix and conduct heat; the positive and negative nickel chips of the battery cell are spot welded firmly, and the barley insulating paper is also used to tightly paste the insulation, and the thermistor is also equipped with a thermistor for temperature monitoring, and the overall workmanship of the product is solid.
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ROMOSS
Romax 20000mAh 100W Fast Charging Power Bank Sense6 Max
This 20,000mAh power bank has a 2C2A port, and two USB-C ports support 65W fast charging input and 100W fast charging output. And the 188 digital tube power display is used to accurately display the battery percentage, and the remaining power of the mobile power supply is more intuitive. There are also touch buttons on the side for a better user experience.
Through dismantling, the charging head network learned that this mobile power bank has a built-in 4 strings of BAK 21700 batteries, with a single battery capacity of 5000mAh and a total of 20000mAh in four series. The power bank has two independent synchronous buck-boost circuits and one step-down circuit, of which the two synchronous buck-boost circuits use Yingjixin IP5389 and IP2368 synchronous buck-boost converters respectively, corresponding to two USB-C interfaces.
The step-down circuit adopts Yingjixin IP6566 step-down converter, corresponding to two USB-A interfaces. The battery protection chip comes from Saiwei Microelectronics, model CW1244. And equipped with a thermistor for battery temperature detection. The corresponding position of the PCBA module inside the shell is pasted with graphite thermal conductive paste for heat dissipation, and the battery is pasted with double-sided tape and glued and fixed, and the internal workmanship and materials are good.
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SHARGE Flash
FlashPole 100W Super Power Bank
As a young brand, Shanji has been focusing on the fast charging charger market before, and with the help of the gallium nitride fast charging market wave, it has launched a number of products with geek appearance and performance, which have been recognized by users. This 100W super power bank is the debut work of Shanji to enter the power bank market, and it is also a product that is amazing enough, and at the same time focuses on geek style, with high power, large capacity, full protocol and other attributes, in the same traditional power bank market, it is eye-catching.
Through the dismantling of the charging head network, it is learned that the Shanji Super Power Bank is based on 4 strings and 2 parallel battery packs, which are composed of two independent fast charging architectures. One of them uses Nanxin SC8812 as the main control chip, and cooperates with Xinhai Technology's PD fast charging protocol chip to realize the dual fast charging function of the USB-C1 interface, and Nanxin SC8812 is also responsible for the input and output control of the DC interface. In addition, the main control of Zhirong SW3517S is used to achieve step-down control, and the built-in protocol can complete the step-down fast charging output of the 1A1C interface with one chip.
At the same time, thanks to the fact that this mobile power bank adopts two independent fast charging architectures, it can support the function of charging and discharging at the same time, improving the user's experience.
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Siyou
Siyou 27000mAh 100W快充移动电源
Siyou's 100W fast charging power bank USB-A interface supports QC2.0/3.0, AFC, FCP fast charging protocol, C port also supports SCP protocol and USB PD3.0 fast charging standard, with a complete range of voltage ranges, wireless charging can charge the mobile phone at any time, eliminating the trouble of plugging in the cable, the digital display screen can easily understand the status of the mobile power supply, up to 100W PD fast charging can meet the charging needs of most mobile phones and thin and light laptops, and the 27000mAh/99Wh capacity can also be carried on the plane at the same time, which is very practical.
Through the dismantling of the charging head network, it was found that the Siyou 100W mobile power bank is designed as a four-way circuit to work. Among them, USB-C is one way, which adopts Nanxin's high-efficiency two-way buck-boost solution SC8812A with Xinhai Technology CS32G020K8U6 32-bit MCU realizes two-way fast charging at C port, and the other two USB-A ports use Yingjixin IP6525T to achieve step-down output; the wireless charging path also uses Yingjixin IP6525T to control the output with Zhuoxin's micro ZXW8025+ZX8803 wireless charging solution.
The power supply is equipped with a number of filter capacitors for secondary filtering, and the output is pure; the battery cell is fixed with blue battery plastic skin and foam glue, and the internal stability is guaranteed; the wire core is firmly welded, the battery cell is spot welded with nickel chips, and the wireless charging coil is tightly wound, and the overall workmanship of the product is solid.
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Mori stone vein
Senshimai PowerBen Energy Fort 360W mobile power bank
This power bank has a built-in battery pack with a capacity of 31200mAh, the capacity is real, whether it is a mobile phone or a notebook, it can achieve a good battery life demand, the capacity of 112Wh can be taken on the plane, business travelers can easily carry, in addition, in addition to supporting PD100W two-way fast charging, it also supports SmartDC maximum 150W input, 360W high-power output, which makes it a lot more application scenarios.
Through dismantling, it can be seen that the overall structural layout of PowerBen Energy Fort is simple and ingenious, without dragging mud and water, and the circuit part is highly integrated. The protection board with temperature detection and equalization function, can provide better protection for the battery, two custom IC, a protocol IC, a buck-boost IC blessing, in addition to the conventional fast charging IC can play to the extreme, but also make it have a private multi-mode protocol system, can play the same battery performance to the extreme, it is reported that its internal patented algorithm, can achieve efficient control and management of input and output voltage, power and other parameters, so that in the case of high-power charging and discharging, the temperature rise data can also be ideal.
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UGREEN
Greenlink 25000mAh 145W laptop power bank
This mobile power bank launched by Greenlink has 2C1A three interfaces, which can be used for fast charging of one notebook + two mobile phones at the same time, and the power of two USB-C ports can reach 100+45W when output at the same time, which can meet the temporary emergency charging of two laptops, and the USB-A interface supports fast charging, and it also has good compatibility with traditional devices. The power bank has a 65W self-charging capacity, and the charging speed is also very fast, which greatly improves the practicality.
Through the dismantling of the charging head network, it was learned that the mobile power supply has a built-in Chuangxin micro CM1351 battery protection chip and an external equalization circuit for the protection and equalization function of the battery. The two buck-boost circuits are controlled by Baoli Micro PL5500 two-way synchronous buck-boost controller. The built-in protocol chip adopts the core sea CS32G020 and CSU3AF10, which correspond to two buck-boost voltages respectively to realize the output control of the three interfaces.
The power supply adopts a combination of two PCBs, and the inside is filled with a silicone thermal pad to enhance the heat dissipation capacity, and the PCBA module uses a thermal pad connected to the graphite thermal pad of the shell to dissipate heat and reduce the temperature rise. The battery is insulated with barley paper and tape, and the safety and reliability of the mobile power supply are guaranteed, and the high-power charging and discharging are more secure.
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ZENDURE征拓
Zhengtuo 26800mAh 100W two-way fast charging power bank
The SuperTank Pro mobile power bank adopts the shape of a suitcase, which is unique and recognizable. While the product is designed with four USB-C ports, it is also equipped with a conversion head, which is bold and intimate at the same time. As large as 100W bidirectional fast charging, as small as 18W PD fast charging, to meet the fast charging needs of mobile phones, laptops and other devices, and the interface supports power blind plugging, even if all are USB-C ports, it will not be confused. In addition, it is equipped with an LED display that can show the remaining power and the charging power of each interface, which is very convenient to use. The combination of innovation and thoughtful detail has made it a hit.
Through the dismantling of the charging head network, it was found that this mobile power supply is composed of a protection circuit and three independent step-up/step-down four-port output circuits. Among them, Texas Instruments BQ40Z50 and Tide MOS form the battery pack power measurement and protection circuit, and the C1 and C2 circuits are both powered by Nanxin SC8815 and Bandai MOS for buck-boost voltage, and the output is controlled by the USB PD fast charging chip CS32G020K8U6 by Xinhai Technology. C3 and C4 are one way, using Nanxin SC8102 for step-down, and Xinhai Technology CS32G020K8U6 control the output.
The two Xinhai Technology CS32G020K8U6 are responsible for the PD protocol control of the C1/C2 and C3/C4 interfaces respectively, and one of the chips is also responsible for the screen display driver. Each interface is also equipped with a Tiandeyu FP6601Q protocol chip to support fast charging, and the interface has TVS for electrostatic protection. In addition, the internal battery pack of the mobile power bank is fully insulated, and equipped with a thermistor for temperature monitoring, a thermal pad between the PCB boards is provided for soaking heat to reduce the temperature rise, the inductor is glued and reinforced, and a filter electrolytic capacitor is equipped for input and output filtering. All interface data pins are protected by TVS for electrostatic electricity. The overall workmanship of the product is solid.
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other
26800mAh 100W fast charging power bank
This 100W fast-charging power bank adopts a metal body shell, sandblasted surface, and a sideways curved transition, which is not only sturdy and protective, but also has a good feel to use. The three interfaces all support QC2.0/3.0, AFC, FCP fast charging protocols, and the C port also has five complete voltage ranges of 5V3A, 9V3A, 12V3A, 15V3A, and 20V5A. It is compatible with mainstream fast charging protocols and has complete gears, which can meet the fast charging needs of most mobile phones, tablets, and laptops. The 26,800mAh/99.16Wh capacity design makes it easy to carry on airplanes.
Through the dismantling of the charging head network, it was found that the mobile power supply is composed of a protection circuit, a two-way step-up/down circuit, and two independent step-down outputs, and the structure is clear and clear. The battery cells are connected by 4 strings and 2 in parallel, which are protected by Zhongying SH367103 and Nexen MOS; USB-C circuit is controlled by Cypress CYPD3171 protocol chip, and the input or output is realized by Nanxin SC8815 with Tide MOS buck-boosting voltage; two USB-A ports are controlled by Tianyu FP6601Q, and Silergy Corp. SY8104 step-down output, and the performance is completely consistent.
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Summary of the charging head network
Through the dismantling summary, it can be seen that according to the different years of the launch of the mobile power supply, the early high-power mobile power supply uses 18650 batteries, and the 21700 batteries launched in recent years are used, and the common ones are 4,5,6 batteries in series. The 18650 battery uses 8 cells and is connected in 4 strings and 2.
In recent years, with the introduction of the protocol chip and the synchronous buck-boost controller all-in-one controller, the mobile power supply has also begun to choose this all-in-one solution to simplify the design. And there is also a screen for parameter display to improve the playability of the power bank.