Black & Decker Replacement 243213-00 Battery for CS100 and CST2000 Tools Beiter DC Power PK1250 High Capacity SLA Voltage: 12V (12 Volts) Capacity: 5Ah Used for Alarms, Automobiles, Lighting, Electronics, Emergency Systems, Medical Devices, Scooters, Solar Power, Wheelchairs, etc... User Friendly - Easy Installation With a Very Durable And Rugged Construction