Please Indentify This resistor

[oxygensys]

I brought a made in china Li-Ion Charger
7S - 29.4 V to charge my Ebike battery. unfortunately i accidentally chage the + and - and powered on the charger
this got burned, i replaced it with a 0.1phm resistor. but now only voltage goes up. battery does not hold much charge.

i could not find this on aliepxress or local stores

any ideas?

[redwire]

Re: Please Indentify This resistor

Your pictures are too blurry, focus on the board, not the chair
Where is the resistor located on the board? Some green mark you drew?

[eccerr0r]

Re: Please Indentify This resistor

looks like a resistor behind the heatsink.

If the battery voltage goes up to nominal, stays that way when you disconnect, and still has limited capacity...well... bad battery?

[R_J]

Re: Please Indentify This resistor

If the resistor colors are:Black, Brown, Silver, Gold it would be 0.01Ω 5%

[oxygensys]

Re: Please Indentify This resistor

Your pictures are too blurry, focus on the board, not the chair
Where is the resistor located on the board? Some green mark you drew?

I will post a good picture today.

[oxygensys]

Re: Please Indentify This resistor

looks like a resistor behind the heatsink.

yes it is

If the battery voltage goes up to nominal, stays that way when you disconnect, and still has limited capacity...well... bad battery?

Voltage goes up. and stay without dropping, it was made out old laptop cells, I ave to reassemble battery today, but it alll start after changer incident.

is BLACK BLACK SILVER GOLD i think, now resistor shows .8ohm resistance

[R_J]

Re: Please Indentify This resistor

Voltage goes up. and stay without dropping, it was made out old laptop cells, I ave to reassemble battery today, but it alll start after changer incident.

is BLACK BLACK SILVER GOLD i think, now resistor shows .8ohm resistance

That color code would be 0Ω 5% Short your meter leads together and subtract that reading from the resistor value, part of the resistance reading could be lead resistance.

[stj]

Re: Please Indentify This resistor

laptop batteries will overheat in a bike - you need high current cells.

[eccerr0r]

Re: Please Indentify This resistor

agreed, especially cannot use "old" laptop cells, can't even use new laptop cells unless you double or triple the number of cells (and then be volume limited)...

[R_J]

Re: Please Indentify This resistor

The resistor looks very similar to F3 on the ADP-240AR power supply which is a 0.16Ω 2 watt

[oxygensys]

Re: Please Indentify This resistor

I instaled a 1amp fuse, all working now

[maxfolder]

Re: Please Indentify This resistor

I can't understand why a 1 amp fuse was needed, I thought otherwise.