Introduction

ChargerLAB got a 10000mAh power bank from CUKTECH. It has a USB-A and a USB-C port that can support a charging power of 30W. It adopts two 21700 batteries and indicator lights. It can also support PD, PPS, and other charging protocols. We're going to take it apart to see its internal components and structure.

Product Appearance

The box is in gray. And there are product name and appearance printed on it.

The specs info are printed on the back, we'll talk about later.

There are three colors for you to choose.

The box contains the power bank, a cable, and some documents.

Here is the flat USB-A to USB-C cable.

The length is about 32 cm (12.6 inches).

It is small in size and has a unique design.

The lower part has a matte design. And the CUKTECH and 10000mAh are printed on the front.

The specs info are also printed here.

Model is PB100. The USB-C can support input and output of 30W. The maximum charging power of the USB-A is 33W. The total battery capacity is 10000mAh. And the energy is about 36.5Wh. 

This side has a power button and two indicator lights that can show the remaining power.

Here is the USB-C port.

The other side has a USB-A port. Both sides of the ports adopt the concave design.

The length is about 80 mm (3.15 inches).

The width is about 58 mm (2.28 inches).

The thickness is about 28 mm (1.1 inches).

And the weight is about 196 g (6.91 oz).

The ChargerLAB POWER-Z KM003C shows that the USB-C supports PD3.0, PPS, and QC4 protocols.

And it has three fixed PDOs of 5V3A, 9V3A, and 12V2.5A, and a set of PPS, which is 5-11V3A.

The supported protocols of USB-A are UFCS, FCP, SCP, AFC, QC3.0, DCP, and Apple 2.4A protocols.

And it has a set of PPS, which is 5-11V3A.

Teardown

Now, let's start to take it apart.

Remove the cover along the gap. It is fixed with clips and glue.

The battery pack is fixed by the black frame.

Cut off the case and take out the battery pack.

Here is the inside of the indicator lights.

Here is the inside of the power button.

The battery pack and PCB are fixed in the black frame. And the battery pack is fixed with potting compound.

The battery pack and PCBA module are connected by nickel strips.

Here is the PCBA module.

Here are the solder joints.

The thermistor pasted on the battery pack is used to detect temperature.

Disconnect the nickel strips, and separate the battery pack and PCBA module.

And here is the gray thermal pad.

The battery is glued inside the frame.

The 21700 batteries are from EVE and connected in series. Model is INR21700/50E. 5Ah for each.

There are sockets, alloy inductor, converter, and protocol chip on the front of the PCB.

The back has VBUS MOSFET, indicator light, and battery protection chip.

The buck-boost converter is from SouthChip. It integrates MOSFET and I2C port. It supports an input voltage of 2.7-22V. Model is SC8905.

Here is the information about SouthChip SC8905.

The alloy inductor can reduce losses and improve conversion efficiency. 3.3μH.

There are MLCC capacitors used for input and output.

The protocol chip is from Chipsea. It integrates 8-bit RISC, 32K×16-bit FLASH, and 2K SRAM. Model is CSU3AF10.

It is suitable for fast charging and adopts QFN28/QFN24 package. It also supports PD3.1, UFCS, etc.

The protection chip is also from Chipsea. Its supports CC1, CC2, SBU1, and SBU2 overvoltage protection. Model is CPW6003.

The VBUS MOSFET used for USB-C is from ChipSourceTek. Model is PE15D11. 18V 18mΩ.

The VBUS MOSFET used for USB-A is the same as the previous one.

There is an SMD button for power detection.

There are eight LED indicators and TVS for electrostatic protection.

The battery protection chip is from MadeChip. It integrates voltage and current detection circuits. Model is CM1020-H. 

The MOSFET for battery protection is marked with 2002.

The USB-C socket has a black plastic sheet.

The USB-A socket also has a black plastic sheet.

Well, those are all components of the CUKTECH 10000mAh 30W power bank.

Summary of ChargerLAB

The CUKTECH 10000mAh 30W power bank has a small size. The indicator light can let you check the remaining power. Both ports can support fast charging. And the USB-C can support PD and PPS. The total battery capacity is 10000mAh.

After taking it apart, we found it adopts a battery pack that composed of two 21700 batteries. The battery pack is fixed in a black frame. And there is also potting compound for heat dissipation. The interior workmanship is solid. The compact structure allows it to have such a small size. Coupled with its unique appearance, it becomes a smart choice for small-sized power banks.

Related Articles: 
1. Teardown of CUKTECH No.15 150W & 20000mAh Power Bank
2. Teardown of CUKTECH No.20 PD3.1 & 210W Power Bank (P23)
3. Teardown of CUKTECH No.30 PD3.1 & 300W Power Bank