Keep your setup up and running with the American Farm Works 6V Solar Replacement Battery for SP3, SP3T, LIS3B and ESP3M Solar Chargers. When replacing your battery, be sure to follow the safety instructions provided. This is because chargers can hold a charge long after they have been unplugged or disconnected from the battery. These 6V replacement batteries help keep your electric fence secure and reliable. Shop more parts from American Farm Works today. A few things you should know when repairing a charger: Most chargers can hold a charge long after they have been unplugged or disconnected from the battery. You can be shocked by an unplugged charger. The consumer assumes all risk when repairing or utilizing a charger that has been 'repaired' or modified. In addition, once the charger has been opened all warranties are null and void and state of federal inspections and approvals (such as UL, CE) are terminated.