Hi,

I have a power bank (branded Power Bank).

It used to charge via a surface mount micro USB, but that is now surface unmounted.

Ive opened the unit up (but not got my DMM on it yet.

It consists of a small pcb (about 1cm2) and a cell / battery
(A little bigger than an AA).

Does the team think this could be recharged by connecting a regulated PSU to it? And if so, what voltage
It might require?

TIA

Chris

On Friday, 12 April 2019 14:29:09 UTC+1, wrote:
Hi,

I have a power bank (branded Power Bank).

It used to charge via a surface mount micro USB, but that is now surface unmounted.

Ive opened the unit up (but not got my DMM on it yet.

It consists of a small pcb (about 1cm2) and a cell / battery
(A little bigger than an AA).

Does the team think this could be recharged by connecting a regulated PSU to it? And if so, what voltage
It might require?

TIA

Chris

Is it NiMH or Li-ion?


NT

wrote:
Hi,

I have a power bank (branded Power Bank).

It used to charge via a surface mount micro USB, but that is now surface unmounted.

Ive opened the unit up (but not got my DMM on it yet.

It consists of a small pcb (about 1cm2) and a cell / battery
(A little bigger than an AA).

Does the team think this could be recharged by connecting a regulated PSU
to it? And if so, what voltage
It might require?

TIA

Chris


Why not try and replace/resolder the USB socket? Big Clive has a lot of
good videos on soldering on his YouTube channel including surface mounted
stuff.

Tim

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Please don't feed the trolls

What type of batter is it?
Brian

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wrote in message
...
Hi,

I have a power bank (branded Power Bank).

It used to charge via a surface mount micro USB, but that is now surface
unmounted.

I've opened the unit up (but not got my DMM on it yet.

It consists of a small pcb (about 1cm2) and a cell / battery
(A little bigger than an AA).

Does the team think this could be recharged by connecting a regulated PSU to
it? And if so, what voltage
It might require?

TIA

Chris

Brian Gaff wrote:
What type of batter is it?
Brian


One that uses an egg from a battery chicken.

GH

wrote:
Does the team think this could be recharged by connecting a regulated PSU
to it? And if so, what voltage It might require?

If you can get at the USB 5v input rails and give it 5V, the board should
still charge it. I wouldn't charge the lithium cells directly without
protection, since they could catch fire.

If the power bank is sufficiently generic you might be able to find a
replacement PCB:
https://www.aliexpress.com/wholesale...power+bank+pcb

or more likely transplant the cells into a new case:
https://www.aliexpress.com/wholesale...power+bank+diy
(harder if they're pouch cells than 18650s)

Theo