When you purchase a complete GTO Operator the battery is included. This battery is used with GTO model's PRO2000XL/PRO3000XL/PRO4000XL swing gate operators, SL1000/SL2000 slide gate operators, and Mighty Mule 500/502 operators. It works also with the discontinued PRO1000, PRO2000, and PRO1800 (PRO1800 requires another 6 VDC battery below, see BATT06).
This is the standard 12 volt, 7.0 to 8.0 amp-hour, maintenance-free battery and is the only battery approved for use with GTO/PRO operators. Life expectancy is 3 to 5 years.