VOLTAGE SENSING BATTERY ISOLATOR RELAY GENERATOR
VOLTAGE SENSING BATTERY ISOLATOR RELAY PLUS

If I decide to use the rig as a generator I’ll just add a switch to keep the sure start relays closed. To buy an ACR over, I’d get the Blue Sea 7620 rated for 500 A output. I could dig deeper into the alternator wiring to solve this, but I’m taking the path of least resistance for now. With the alternator wired to the starting bank, that problem went away. this was knocking out the inverter which has an input limit of 15 v. Alternator output was peaking at about 15.2 v until the ACR connected the banks.

I’d planned on wiring the alternator to the house batteries, but I found the alternator output feedback is through the OEM wiring to the starting batteries. Any time the alternator is pushing more than 120 amps, a large chunk of it is recharging the starting batteries (which doesn’t go through the relay). The house batteries usually only draw about 100 amps peak. It’s rated to handle 215 amps for 5 minutes. The weight would be the same and I could run the engine for a bit if I needed power to run the AC.Ĭlick to expand.I’m using a Blue Sea 7610. I would probably be happier with a big alternator, 3000 watt pure sine wave inverter, and four 6 Volt batteries. I have a 2.8 kW generator under the new van which weighs about 130 pounds installed. That is a recipe for boiled batteries if not programmed properly. Be careful when you set the final stage voltage if you draw power from the batteries at the same time as you charge them. You really need to pick a charger that has at least 3 stages, has a battery temperature sensor, adjusts voltage based on technology, and is quiet. I ended up removing the original 6 amp battery charger the DC panel had built into it because it would take too long to restore the batteries and it did not have any intelligence. Those batteries were happy to suck up all the power the alternator could put out. I never lacked power with that system except when I let it get too low and wasn't able to charge it with the alternator (tripped breaker issue).

VOLTAGE SENSING BATTERY ISOLATOR RELAY PLUS

My other van had two Trojan T-105 Plus batteries, a 25/50 amp charger, and a 2000 watt pure sine wave inverter. The 6 Volt batteries and a good charger are a whole other story. This may be handy if I put in a 2nd alternator or swap the one I've got with a 300 amp job. Bikesmurf: Which VSR are you using? It seems that you've got quite a bit more current passing through it than I've seen available.

Voltage sensing battery isolator relay