XBoater
Member
Looking to upgrade battery systems on my new to me Jefferson.
First the previous owner removed the old 8D batteries and installed 2 Grp 31 in each battery box. Each engine uses a battery box for starting and has its alternator wired to charge the battery box. Each box is wired to a separate side of the house battery switch so I use 1,2 or both for house power.
My concern is I have a12 volt fridge and no central inverter so I worried one bank may not be enough to overnight.
I thinking about using bank 1 as the starter for both engines and replacing bank 2 with 8D lithium.
So to do that, can I attach both alternators to the starter bank?
I was thinking to attach a DC to DC charger from bank 1 to Bank 2.
Does the DC to DC sense the incoming voltage from the alternator to turn on, or what controls the charging, don’t want to drain starter battery bank.
I have to get a 120v charger for the lithium bank to charge on the generator as the 3 bank charger will only charge one type and I connect it to each battery AGM in bank 1 and gen battery.
Any thoughts or comments would been great.
First the previous owner removed the old 8D batteries and installed 2 Grp 31 in each battery box. Each engine uses a battery box for starting and has its alternator wired to charge the battery box. Each box is wired to a separate side of the house battery switch so I use 1,2 or both for house power.
My concern is I have a12 volt fridge and no central inverter so I worried one bank may not be enough to overnight.
I thinking about using bank 1 as the starter for both engines and replacing bank 2 with 8D lithium.
So to do that, can I attach both alternators to the starter bank?
I was thinking to attach a DC to DC charger from bank 1 to Bank 2.
Does the DC to DC sense the incoming voltage from the alternator to turn on, or what controls the charging, don’t want to drain starter battery bank.
I have to get a 120v charger for the lithium bank to charge on the generator as the 3 bank charger will only charge one type and I connect it to each battery AGM in bank 1 and gen battery.
Any thoughts or comments would been great.