Skill Level: Advanced Please note: Battery's contact is NOT included. You will need to solder your old contact to the tabs on the battery assembly kit. Kit Includes: (1) 12 Volt Pack built with Tenergy 2.2Ah NiCd cells (1) Thermistor For assembly, you'll need: - TORX T10 SECURITY SCREWDRIVER to remove the case - It is recommended use a drill to release the contact from the original battery pack - Soldering gun and solder to replace thermistor (if needed) and to attach the contact to the tabs on the battery pack.G/C Battery, Co