How to fix battery position?


mclien

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I did a bit of digging through my dust-collectors and found my old classic pandora. I remembered vaguely, there was a battery problem, which I didn't solved.

As I was fiddeling around a bit, I located the problem: the contacts of the case and battery are miss-aligned (orange line, it's a bit hard to see in the pic, but when I remove the cover an push the battery (left in the pic, to the front in the pandora) it boots!

So the question is how do I fix that properly? I guess the position of the board is fixed, so I was asking myself: are the soft pads on the sides originally?
(can't remember, if I put those or if I got that pandpra used..)

Anyways, if I push the batter against the green circled pad (squeezing it a bit) are aligning.

My ideas:
a) remove that pad and maybe double it othe other side
b) glue the battery into the lid in the right positioin

Sidequest: is there a way to fit the pyra battery into the pandora? (and has the pandora the tech specification to fully charge the 50% bigger v´battery?)
 

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As far that I read the Pyra batteries should be compatible with the Pandora, but are a bit larger, so it's possible that some force is needed to fit them inside ...

The next time I'll remove the battery I'll try if them really fit.
 
As far that I read the Pyra batteries should be compatible with the Pandora, but are a bit larger, so it's possible that some force is needed to fit them inside ...

The next time I'll remove the battery I'll try if them really fit.
Had the chance to do that. A bit to wide and a bit too high,
 
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As I understand it a larger battery capacity will have no impact on a smaller capacity charge controller. It will be charged at the same bulk rate as the original smaller cell. That would make the charge a bit more healthy for the larger capacity cell. The charge will be terminated at the same safe maximum voltage after trickling at safe lows, given the chemistry is the same, which I expect to be regular 4,2V max voltage li-ion.
Correct me please, before somebody sets their house on fire.
 
The charge limit on the Pandora battery was set software side, but I'm not sure if was made just arbitrary for that particular battery or if it uses dynamically parameters taken from the battery itself ...

Before that solution there were a lot of issues with overcharged batteries, the so called "chubby battery", where them were becoming fat and sometimes breaking the case.
 
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