Product of the expected, only one small problem but lesser, 5 cell 2200mAh make 11000Ah, not 12, it's brand cells, but these are 22f (2200mAh). Nonetheless put this small point aside, with cells of this type, no worries to predict, you are quiet for at least 2 years under normal conditions of use, with an ever-present capacity over time, which is not Most batteries have with using Chinese cells "no-name" so here, impeccable quality for money !!!