Possible battery cell replacement.

[Old Bama Dude]

OK, I've been AWOL on here for a long time and seen some discussion about the X Star premium battery rebuild. I think everyone knows by now the battery pack contains four 3.7v cells and the entire pack is 4900 mah, but what is the mah of each cell? Is it 4900 each cell, or 4900 divided by four? I've been looking on Alibaba for some cells.

 

[Old Bama Dude]

From my napkin doodling during breakfast....

If connected in series each of the 4 batteries would need to be.925 volt while each battery would be 4900mah which seems silly. Voltage for the battery pack would be 3.7v 4900 mah

Conversely, if 4 batteries were connected in parallel, each cell would be 3.9v while each battery would be 1225mah with the total package being 4900mah

Given this application of ohm’s law I would think parallel would be more likely, que? anyone else?

Wouldn't the cells have to be in series to add up to 14.8v? 4 x 3.7=14.8.

 

[waltermitty]

dang...i think i was experiencing a sugar rush !!

 

[KANSAS KILLSHOT]

If somebody can figure out how to rebuild these evo 2 batteries, they would be a rich man.

 

[Old Bama Dude]

Found this on Amazon, physical size is very close. Not a silver colored cell as in the Autel battery pack.​

3.7V 5000mAh 905580 Lipo Battery Rechargeable Lithium Polymer ion Battery Pack​

 

[mike9591]

https://www.aliexpress.us/item/3256804637610846.html?spm=a2g0o.productlist.main.75.1e823f5e84ODrI&algo_pvid=c54f953e-435d-42e7-b4cb-9983ddaa2c81&algo_exp_id=c54f953e-435d-42e7-b4cb-9983ddaa2c81-37&pdp_npi=4%40dis%21USD%2115.90%2111.13%21%21%2115.90%21%21%40210321c617002859014432715ef848%2112000030623090317%21sea%21US%210%21AB&curPageLogUid=uzrxEHproWBd