The original battery of my notebook (HP 550) had given: maturity was 5 minutes. After a short Amazon research actually came only this battery are: low, to good reviews. These good reviews I add now my add. Short Form: - Fit OK, no Hakelei during insertion and no embarrassing gaps between housing and battery - Mileage is not as high as in the new original (about 2-3 hours at the office-use instead of original 3-4h), but for the price absolutely reasonable - No sensible heating, use and charging - Charging times of 2-3 hours are the same as the original batteries.
