... life of the storage battery.5. Have the electricity protection data function.6. Charging circuit is adopt the dual ... status.8. Over charging protection, over discharging protection, over load, short circuit protection, reverse polarity protection and TVS lightning protection.9. All the controllers ... voltage Auto 12/24V ; 12VOver load, short circuit protection 1.25 rated load current 60sec, 1.5 rated ...