Enerdrive Dual Battery Kit 12VThe Enerdrive Dual Battery Kit 12V a useful battery kit that can be used for safe and reliable charging of 12V systems for motorhomes, caravans, boats and more. This dual battery kit is designed for priority starting of the starting battery. When the charge voltage reaches 13. 3V, the Voltage Sensitive Relay (VSR) kicks in and lets both the starting and auxiliary batteries be charged. When the battery voltage falls below 12. 8V, the VSR separates the
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