One Lifepo4(LFP) Battery charges Another lifepo4 (LFP) Battery

Inverter

IF I have a home storage energy 51.2V 100Ah and one motor Bike For example: My motor Bike Lifepo4 (LFP)  battery is 72v 30Ah , at some urgent case like suddenly  they shut  the Electronic  supply . how to do ?  use the lifepo4  51.2v 100Ah Battery to charge another  Battery  72v 30AH Battery . […]