Spare battery for Exway Wave electric skateboard.

This battery is composed of 20 cells in a 10S2P configuration, delivering 36 V and a capcity of 5 Ah / 180 Wh.  But that's not all. This is a so-called "smart" battery, and it's capable of discharging itself after a week of no use to 60% of capacity to preserve its longevity or estimating the level of charge (=range) to an incredible precision level of 2%.
But the biggest advantage of this battery is the fact that it is a real quick-swappable battery in the truest sense of the word. This means that if you ride long enough to empty the battery, you can just take out the spare one from your backpack, press a button and the swap is done in 10s. There is no need to screw any screws, remove enclosures, reconnect some cables, or anything else. This is it.

Specifications:
Capacity: 5 Ah
Voltage: 36 V