Need to replace tape on LiPo battery. Is it Polyimide?

I recently purchased a 400mAh LiPo battery (Polymer Lithium Ion Battery (LiPo) 3.7V 400mAh | Core Electronics Australia), but unfortunately the black lead broke from the battery protector PCB.

I’m intending to attempt to resolder it, but the PCB is protected by this yellow-tape (i’m assuming to help reduce static). I’ll need to cut through it to access the PCB, and if the tape is there, I have a feeling I should replace it.

Is this a polyimide tape like the ones listed on here (High Temperature Adhesive Tape - (1cm, 33m) | Sparkfun PRT-10687 | Core Electronics Australia)?

1 Like

Hi Tristan,

You’re correct with the tape being Polyimide, if you do go ahead with the repair exercise extreme caution, LiPos are very unforgiving if you short them out/damage them in any way. I would recommend doing it in an area that can easily be evacuated and also having an appropriate fire extinguisher on hand

2 Likes

Thanks Dan,

The battery wire transplant was a success, but I did keep around my fire-proof cooking bowl and fire blanket before doing anything silly. I now have it taped back down and sitting happy.

The 1/20 inch spacing between the two pads was definitely a bit nerve wracking, but I now feel a bit more confident to step up the wire-gauge if the project needs it.

Cheers,
Tristan.

5 Likes

Lovely to hear!

Also I’m very impressed with the steps you’ve taken for safety equipment, LiPo batteries are no joke.

2 Likes