Answer
Jan 21, 2025 - 06:24 AM
The BatteryProtect can not be used to supply power to another battery. It is a one way device. If the second battery was at a higher voltage than the first the current would flow in the opposite direction and destroy the BatteryProtect.
We do have devices designed specifically to do what you want. The Blue Sea 7610 SI Series Solenoid120 Amp 12/24V ACR is an automatic charge relay which combines the two banks when either is above 13 volts and separates them when they arent. It is rated for 120 amps. It is one of a wide range of ACR's that we stock at PKYS.
Note that most of these ACR's do not work well with Lithium batteries because those kind of batteries do not change their voltage enough to give a cue to the ACR on when to combine. Some of the Egis ones are programmable and so can be made to work by tweaking the connect voltage.
We do have devices designed specifically to do what you want. The Blue Sea 7610 SI Series Solenoid120 Amp 12/24V ACR is an automatic charge relay which combines the two banks when either is above 13 volts and separates them when they arent. It is rated for 120 amps. It is one of a wide range of ACR's that we stock at PKYS.
Note that most of these ACR's do not work well with Lithium batteries because those kind of batteries do not change their voltage enough to give a cue to the ACR on when to combine. Some of the Egis ones are programmable and so can be made to work by tweaking the connect voltage.
