Hello, welcome back to ChargerLAB. We know that most of our fans like the technology,
So, today, we bring this very geek power bank to all of you.
This 100W super power bank is made by SHARGE and has been on Kickstarter before.
We can see it adopts transparent plastic shell,
which is very suitable for geeks. So, let’s go to see the details.
Just as I said, we can see the internal PCB, chip, battery through the transparent plastic shell
Full of cyberpunk style But it also very easy to leave scratches.
And then, let’s look at the front of the product. The display.
A button is next to it. To light up the screen by long press.
We can see the data such as input/output voltage, current, power, battery temperature, time, etc.
We can see the internal battery pack from the side.
The battery capacity is 25600mAh. Total energy 93.5Wh,
which meets the requirements of the airline. You can bring it directly to the plane.
The client is SHARGE Technology. The manufacturer is Arun Industrial.
Let’s take a look at the upper side. This product has four ports,
which will be DC input/output port USB-C 1 input/output port
USB-C 2 output port And USB-A output port
Each port is marked with its own name. There is the warning in here:
When the DC output is on DON’T charge it through the DC port.
The detailed specification of the product is printed on the other side.
USB-C1 supports 100W PD fast charging. DC port supports 5-24V 3A of input
and 3.3-25.2V 3A of output. USB-C2 supports 30W PD output.
And USB-A supports 18W output. And it also has multi-port output strategy here.
The size of this product is about 150*58*46mm (5.91*2.28*1.81 inches).
The weight is around 591g (1.3 lb). It’s pretty weighty if you hold it in your hand
But fortunately, this long strip design will make it easier to pick up.
Use ChargerLAB POWER-Z KT002 to test the fast charging protocol of USB-C.
It supports PD, PPS, QC4 fast charging protocol and five fixed PDOs: 5V3A, 9V3A,
12V3A, 15V3A, 20V5A It also supports 3-21V 5A PPS PDOs.
USB-C 2 supports PD, PPS, Apple2.4A, QC2.0, QC3.0, QC4+, AFC, FCP, SCP, MTK-PE, etc.
It also supports four fixed PDOs: 5V3A, 9V3A, 12V2.5A,
15V2A and two PPS PDOs: 3.3-11V 3A, 3.3-16V 2A. The USB-A supports Apple2.4A, QC2.0, QC3.0,
AFC, FCP, SCP, MTK-PE fast charging protocol. OK, next will be our mission. Just tear it down.
Honestly, it might be the easiest power bank we have torn down.
Just remove the four screws that fix the bottom plate.
And remove the frame of the display and button. Then, you can take out the internal module.
The internal module of the power bank is composed of battery pack, battery protection
board and PCB board of master control chip. The battery pack is wrapped in a fireproof PC.
The two PCBs are placed perpendicular to each other.
The PCB of master control chip and the battery protection board are connected by XT30,
which is designed for high current and commonly used in emergency power supply of cars.
The communication signal cable is set aside separately.
Next, continue to remove the motherboard. We can see a whole thermal pad is in the back.
It can ensure the PCB is in close contact with the frame,
enhance the heat dissipation effect and insulate different layers.
The display on the motherboard is connected by a flat cable and can be easily removed.
The brand logo of SHARGE and Arun are printed on the front of PCB.
After our analysis, The battery pack is
equipped with four series and two parallel, and developed based on two independent circuits.
One of them belongs to the buck-boost circuit, used for
input/output control of USB-C 1 and DC port. The other one is a step-down circuit,
used for USB-C 2 and USB-A output control. The left is the buck-boost circuit.
The right is the step-down circuit. Besides, solid filter capacitors,
display driver chip, memory, power button and multiple MOS tubes are also arranged on the PCB.
The circuit on the back of the PCB board is simpler.
They are the buck-boost controller and the protocol chip.
Then, let’s take a look at the 100W fast charging buck-boost circuit.
The PD fast charging protocol chip with USB-C 1 comes from Chipsea Technology.
Its model is CS32G020K8U6, packaged by QFN32 and has built-in ARM M0 core.
It also supports the wide range of industrial control and high-performance processing.
Suitable for PC power adapters, chargers, power bank, car charger, HUB, etc.
The buck-boost chip adopts Southchip SC8812. This is a high-efficiency synchronous buck-boost
chip and it supports boost or buck to charge 1-4 batteries.
It has built-in 10bit ADC and adopts I2C port to control the four MOS tubes on the front
for voltage conversion. There are four MOS tubes of
the same model on the front of the PCB. An SMD power inductor is in the middle,
which is used to cooperate with Southchip SC8812 to buck and boost.
Besides, a solid filter capacitor is set on battery side and output side.
The capacitor near the battery side comes from CapXon, which is 25V 100μF.
The capacitor near the output side adopts a solid capacitor
of 35V withstand voltage, in order to satisfy the wide voltage input
and output of the DC port. The capacity is also 100μF.
The other circuit of USB-C and USB-A only needs to support the output.
And the voltage of battery pack is about 16V. So, this circuit adopts a step-down output,
consisting of a master control chip with an inductor and two solid capacitors.
The solid capacitors of the step-down circuit are all from CapXon.
The step-down circuit adopts ismartware SW3517S as the master control chip.
This is a highly integrated charging chip for multi-protocol and dual-port.
It also supports fast charging and independent current limit of USB-A and USB-C.
Ismartware’s step-down chip is also the leading one in the multi-port fast charging market.
The big one in the middle is a single-chip microcomputer.
Used for data collection, power control and display drive.
An LDO from Micro One is next to it, which is used to power the master control chip.
There is a memory from Boya 25D80, which is used to store data.
There is the VBUS tube of USB-C 1, and they are connected oppositely but in series.
There is also a VBUS tube near the USB-C 2.
The ports are all adopts metal shell and fully sealed design.
Not only looks geeky, and can also be used to prevent dust.
And then, let’s take a look at the battery protection board.
The battery protection board is connected to the battery pack through a nickel cable.
A lithium battery protection chip is in the middle.
And four MOS tubes are next to it. At the same time, there are three cables of green,
white and yellow on the protection board. Used for battery voltage sampling.
The NTC thermistor cable is next to it. Used for temperature detection of battery pack
This button is used to reset the battery protection board.
Finally, it’s the battery pack. It adopts eight 18650 batteries.
Single capacity 3200mAh.
There are five batteries connected in series and three batteries connected in parallel.
Well, that’s all for today’s teardown of this very geeky SHARGE power bank.
The new appearance makes it stand out among many products and becomes the loved one of geeks.
As for the performance, there is no need to worry. It’s impressive for the power bank to have 100W
power, full protocol and multi ports. Powerful batteries and well-known brand
chips are also revealed the designer’s pursuit of the ultimate product.
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