Can someone pls explain why if I connect an external battery to my phone, it can only be used to recharge the internal battery?
Why can't these batteries not effectively increase the size of the battery connected to the phone?
In other words, if my phone has an internal battery of 1900 mah, and I connect a case with a battery of 2500 mah.... Why can't I have 4400 mah available?
Thx
Why can't these batteries not effectively increase the size of the battery connected to the phone?
In other words, if my phone has an internal battery of 1900 mah, and I connect a case with a battery of 2500 mah.... Why can't I have 4400 mah available?
Thx