trying to increase or extend the backup of powerbank.

m-salman1

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Jul 21, 2014
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4,510
hello dear members, i recently purchased a powerbank that states it has 12000mah capacity, however when fully charged it charges my sgs3 only once which has 3600mah battery. i would really love to increase the charge capacity of this powerbank, i opened the case and images are attached ;)












now the thing is i have quite a lot of cellphone batteries (3.7v but different mah) roaming around here, can i somehow use them to extend the backup? or how can i use more cells like these to increase backup? i dont really care about the look of it i just need more backup :) hoping i will be able to do it. thanks :)
 

m-salman1

Reputable
Jul 21, 2014
5
0
4,510
nah im not trying to do any harm to the cells, im just asking can i add more cells in the series on both sides? or can i somehow use the 3.7v cellphone batteries in this powerbank? thanks.