Bhai overall design vagera kafi badhiya banaya apne par vo jo powerbank module use kiya hai apne vo bilkul bhi efficient nahi hai or bohot jald kharab ho jata hai kehna ye hai ki module quality is not good...
To bhai tum bta do koi alag concept Or bhai samar bhai ne asi body bnai h to btao concept to same hi hoga na Sare battery 🔋 ko parallel mein jodkar module se connect karna