Bought two of these in March, one crapped out (zero output - shows shorted) in 2 weeks, the other did just today (3 months). Capacity was always poorer than the original battery and would require recharging to get through the day (original would run for 2 days under same conditions). I believe these are factory seconds discarded because they did not meet the OEM's test requirements. They sure are not true OEM batteries. They're junk!