I have a Haibike mountain bike.
The bike battery is a Samsung 36 volt, 13.6 amp hour, 489.6 watt hour, lithium battery that take 4.5 hours to fully charge from empty.
The battery charger says:
input 100v-240v, 1.9A, 190W
output 42v, 4A
My Motorhome has AGM 6V batteries that recharge...