# Electronic – Batteries connected both in series and in parallel

batteriesparallelseries

I am confused.
Some sources say that connecting batteries in series also doubles the amperage (not only voltage) while maintaining the same mAh rating, while connecting them in parallel only increases the capacity mAh, while other sources say the amperage remains the same.

To put it simple, say I want to power an electrical motor that is 48V/1000W.
I will first need to connect 12 (3.7 hi-drain 20A 3000mAh li-ions) in series output 44.4V / 3000 mAh.
But since the motor drains 20.8Amps and 3000mAh means the battery can provide 3 Amps per hour, this essentially means the battery will get drained for what. 7 minutes? On max power.

This means I will also need to connect some batteries in parallel, to provide more capacity. So if I connect those 12 batteries in parallel with another battery.. does this make 14 minutes?

Edit, according to this, two batteries connected like that output 6A.
If measured separately they are 3A.