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Taking Apart Arun’s Wireless Power Bank

From the overwhelming responses we have received from to the wireless charger posts, it’s proven that the wireless charging technology has entered a new era.Various manufacturers have introduced their own wireless charging products to meet the needs of the market.  Today we are going to take a look at a wireless power bank, the JWX0001, by Arun.

The Unboxing

A “Qi”  logo is printed on the front of the black case to show that the power bank supports Qi wireless charging standards and are compatible with the iPhone X and iPhone 8.

The power bank has a rounded rectangle shape.

Specifications are printed on the back of the power bank.

Dual USB-A ports and one micro power input port.

The “Qi” logo is made of silicone, which makes it non-slip.

There are four built-in LED light indicators.

Has a net weight of  179g.

The power bank is slightly shorter than the iPhone 7 Plus.

the width is slightly thicker than the iPhone 7 Plus.

We use the ChargerLab  POWER-Z FL001 to test the power bank; the upper port does not support fast charging protocol while the lower port supports Apple 2.1A.

The lower port charges the iPhone 7 Plus cat full speed. 

The Tesing

Opening the case of the power bank was quite easy.

This is the wireless transmitter.

The power bank consists of 2 boards. The lower one is a mobile power board and the upper one is a wireless charging board.

There is a polymer pouch holding the 6000mAh 3.7V battery cell.

There is nothing on the back of the main board.

First, we took a look at the wireless charging chip. The biggest component is the micro-controller and the low Power Quad Op-Amp LM324 4 are placed on the left and the bottom respectively. The 2 drive chips and 2 MOS tubse were placed on the right.

The square micro-controller in the middle is the Generalplus GPMQ8005A, with an operating voltage of 5V, it features charging status indicator, over temperature protection, and over-current protection.

The 2 driver chips on the top are GPMD2130; the 2 Mos Tube control modules are GPMD3130; together with the GPMQ8005A, they form the PWM controller similar to the one in a charger.

Next, let’s take a look at the mobile power supply terminal.

IP5209 chip from Injonic Technology.

It supports 2.1A charge and 2.4A discharge.

Two 8205A are suitable for protecting lithium-ion rechargeable battery pack from overcharging. 

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