Is it possible to repair Reention battery power button (with LED lights)?

[Gionnirocket]

Mine just used the white electronics silicone, and I could pick it off easily.
(I added the clear silicone)
Sandros circuit board appears to be using both silicone and hot glue?

Hot glue can be more difficult to remove, and that 4 pin connector looks to be glued in pretty good?

Sandro should still be able to get his battery working without the USB port, if he can't get the connector disconnected.

It's not a concern to save the old board.. So it can be destroyed in the process if it makes things easier.
A hair dryer can soften the hot glue's bond. Just be patient and don't use so much heat that you deform the connector.
Patience with this type of work is paramount.

 

[PCeBiker]

There are electronics repair stores all over the place these days. They usually repair phones and computers, but they may be willing to do this simple repair for you if you are uncomfortable with it.

Sandro should be OK.
The chances of a short circuit are slim, and the BMS will shutdown the output if you do short something.

Just replace one connector or one wire at a time.

Even a fully charged battery (54.6V) isn't enough to give you a shock.
It takes over about 90 volts to feel a shock if you touch the wires with your fingers.

My battery and circuit boards were live when I gutted the circuit boards from my battery.

I just snipped all the wires (one at a time) then coated the cuts with silicone to insulate them.

 

[PCeBiker]

Patience with this type of work is paramount.

I used a pair of Strong reading glasses to get all up in there to see what wires were coming and going and to find the seams of the connector to make sure that I was prying on the right spot.

 

[RunForTheHills]

I agree he should be fine. Connectors are easy, but not everyone is comfortable soldering or crimping wires. I use a headlamp when soldering, but reading glasses are a good idea.

 

[PCeBiker]

I bought a pair of +6.0 reading glasses, because the ones at the dollar store only go up to +3.25


I rarely use those glasses because they kinda give me vertigo and make me dizzy.
I don't wanna get sea sick and barf all over my circuit board.

 

[Gionnirocket]

Yes good light, some magnification when working and propping/clamping things up so you have a nice steady work area are all helpful.
The higher the magnification also means you need to be closer to the work so sometimes more isn't better. I've found 3x to 4x adequate
I have have a rework station set up so applying just the right amount of heat is easier to accomplish.

 

[PCeBiker]

I have have a rework station set up so applying just the right amount of heat is easier to accomplish.

I bought a little 300 watt heat gun for fifteen bucks, because my full size heat gun and hair dryer are too big and bulky.

It works OK but it's kinda junky, the cord is too short, and the motor is outta balance so the thing is Screaming Loud.