I have a 1 cell charger from a mobile power bank that charges a 3,7V Li-ion battery. I have another battery that's the the same as the one in the power bank and I would like to extend the capacity. So I came up with this circuit and would like to ask you if i need to change or add anything or if it will even work. Thanks for your answers!
![Battery.jpg Battery.jpg](https://makerv2.webteractive.co/forums/data/attachments/17/17666-e95b867cc39f5847d13e3a5eaa5f6c7a.jpg)
![Battery.jpg Battery.jpg](https://makerv2.webteractive.co/forums/data/attachments/17/17666-e95b867cc39f5847d13e3a5eaa5f6c7a.jpg)