20A fast charging he, 10A slow, ager 10A pe rakhnay say aap ko required back up milata rahy to 10A is good, other wise 20A pe he rehnay dain, aur narrow pe kar dain on state main he, koi issue nain he...
AAp chala saktay hain washi machine, but uska inductive load hota he, are bar bar on of on off hoty he, is say invter kharb hoany ka bhi imkan he, ar battery ki life bhi kam ho gi, so i dont recommend u to run washing machine,