ESP8266 external battery sizes

[mack6225]

Is OK to use Adafruit Lithium Ion Battery Pack - 3.7V 6600mAh
or stick to single cell like Lithium Ion Polymer Battery - 3.7v 2500mAh
I think I'm OK with 6600mAh since there balanced and output is 3.7v
But I need to check to be sure...

Thanks in advance
Mack

[adafruit_support_mike]

Yeah, that's fine.

The 6600mAh pack has factory-matched cells in parallel for more current capacity, but the voltage is the same as any other LiPo we carry.

Fair warning: it will take a long time to charge the 6600mAh pack through the Feather. The onboard charger operates at 100mA, which translates to about 66 hours in the simplest terms, and will probably take quite a bit longer given the way the LiPo charging process works.

[mack6225]

Thanks for you help

[mack6225]

Thanks for you help