russinthecascades
Active member
We've managed to leave the headlights on a couple of times because we exited the slider door and forget they're on - dead battery . My "house" system is not connected to the vehicles electrical system, I believe in theory I should be able to jump from it. But I'd appreciate comments from this experienced group.
Van - 2015 170 Ext
House system:
400W solar panels feeding Victron MPPT 100/50 Controller
4 12V 100 AH AGM Deep Cycle batteries in parallel
Victron MultiPlus 12/3000 Inverter charger
Victron BMV712 Battery Monitor
Steps/questions
1. Turn off switch between Charge controller and 1st positive. As a precaution, but is it necessary?
2. Turn off switch between 1st positive and inverter/charge. Again, as a precaution, but is it necessary?
3. Connect jumper cables (25 ft 1 AWG, 800A) to 1st positive and last (4th) negative. Is that the correct placement of the cables to spread the draw?
4. Let vehicle battery charge for a few minutes, then turn ignition while still connected to the house system.
Alternative
Leave the solar charger on and let the van battery charge from the house system for a while (?? not sure how long - BMV should be showing output...)
Disconnect jumper cables and see if enough charge has reached the van battery to start...
I hope to never/rarely need to do this, but is there risk to use the deep cycle batteries in this manner? Other thoughts?
Van - 2015 170 Ext
House system:
400W solar panels feeding Victron MPPT 100/50 Controller
4 12V 100 AH AGM Deep Cycle batteries in parallel
Victron MultiPlus 12/3000 Inverter charger
Victron BMV712 Battery Monitor
Steps/questions
1. Turn off switch between Charge controller and 1st positive. As a precaution, but is it necessary?
2. Turn off switch between 1st positive and inverter/charge. Again, as a precaution, but is it necessary?
3. Connect jumper cables (25 ft 1 AWG, 800A) to 1st positive and last (4th) negative. Is that the correct placement of the cables to spread the draw?
4. Let vehicle battery charge for a few minutes, then turn ignition while still connected to the house system.
Alternative
Leave the solar charger on and let the van battery charge from the house system for a while (?? not sure how long - BMV should be showing output...)
Disconnect jumper cables and see if enough charge has reached the van battery to start...
I hope to never/rarely need to do this, but is there risk to use the deep cycle batteries in this manner? Other thoughts?