Sir apka video dekh kar mai same connection kia to mera backup bahut kam deta tha to mujhe doubt hua fir mai full charge kar hidromeater se check kia .fir discharge kia mera back up battery k mutabik nhil mil raha tha...... Fir mai 2 or 2 battery ko serez me jora kar 24 v banaya fir perlar me jora backup pehle se jyada milne laga .ap kabhi jarur check kijiye ga..
Sir isse koi nuksan to nhi hoga na mere pass samratan ka pcu hai 3075 model ka h 1kw soler penel lga huaa hai,150-2 ki 2 battery lagi huii hai becup kam milta hai 24v me