The al 1130 cv quick charger from bosch charges the batteries of all diy and garden tools in the 108 v power for all system in only 30 minutes the 15 ah battery is fully charged and ready to use again the intelligent charging process is gentle on the batteries to give them a long lifetime the light of the battery indicator informs you at all times of the current charging status or warns you if the battery cannot be charged because its temperature is too high