Battery / Toro 55-7520Pack Size:1Toro 55-7520ESF 105-016, Foley/Belsaw 5980043, Foley/PLP 105-018, Green Meadow TB97, NHC 263-1206, Oregon 33-500, Oregon 33-500-0, Rotary 8593Universal for 21" electric start For 21" electric start, 6" lead wire length with molded connector, Plastic case, 3 1/4"W x 4 3/8"L x 2 11/16"HT, Does not include mounting brackets for older models, Recharge time 24-48 hours, 12 volt; 2.5 amp.