When I received product immediately I fixed it with support of mechanic. after 1 month i am giving this feedback. product work fine. but its taking more time to charge compare with charger. like 1:3 base. they mention this product have over charge protection but this option is not there. because when i charge my mobile second time on this my mobile battery corrupted. again i purchased battery. so i suggest product but remember you have take care of mobile battery will effect. This product also delicate one. Easily damaged by bike power. My device already damaged.