ldswofford
New Member
- Joined
- Sep 3, 2021
- Messages
- 6
Newbie to this group. I have a 20 year old Class A RV that I am upgrading the battery/charging system(s) after migrating from a dual fuel refrigerator to a residential refrigerator. Eventually, I will be adding solar charging to the system, but I have to start slowly.
The existing system is 120V (shore/generator) and 12VDV (old converter/(2) 6V lead acid batteries).
I could just try adding in a pure sine inverter, but I have decided to go a step (or two) beyond... to adding in a new inverter charger to where it will take input from the shore/generator auto transfer switch and will then have the 120V output be input to the 30amp main breaker panel (30 amp RV, not 50amp... it is old).
I have a Victron Multiplus 12V 3000W inverter/charger that I will be using and am presently looking for "reasonable" battery recommendations. The plan(for now) is to look for either (1) 12V/200AH LiFePO4 or (2) 12V/100Ah LiFePO4 in parallel. Thinking the 1 larger battery reduces wiring connections, as no battery to battery jumpers are needed. I believe I have a space inside the RV bedroom that is in close proximity to the main 120V/DC panel/transfer switch area where I can mount the battery/batteries below in one cabinet and the Victron above in another, which should keep the wiring runs to less than 4-5 foot max.
I am attaching an overview diagram to this posting and am looking for feedback on good/bad/stupid/dangerous as to what I think I need to do. I also would like to know if I have oversized/undersized any of the fuses/shunt/etc.
While I have read a ton, I am no expert here, so please be gentle....and constructive. Also Any recommendations on 'reasonably priced' fuses/shunts/disconnect switches/etc. are appreciated.
Thanks, in advance,
Larry
The existing system is 120V (shore/generator) and 12VDV (old converter/(2) 6V lead acid batteries).
I could just try adding in a pure sine inverter, but I have decided to go a step (or two) beyond... to adding in a new inverter charger to where it will take input from the shore/generator auto transfer switch and will then have the 120V output be input to the 30amp main breaker panel (30 amp RV, not 50amp... it is old).
I have a Victron Multiplus 12V 3000W inverter/charger that I will be using and am presently looking for "reasonable" battery recommendations. The plan(for now) is to look for either (1) 12V/200AH LiFePO4 or (2) 12V/100Ah LiFePO4 in parallel. Thinking the 1 larger battery reduces wiring connections, as no battery to battery jumpers are needed. I believe I have a space inside the RV bedroom that is in close proximity to the main 120V/DC panel/transfer switch area where I can mount the battery/batteries below in one cabinet and the Victron above in another, which should keep the wiring runs to less than 4-5 foot max.
I am attaching an overview diagram to this posting and am looking for feedback on good/bad/stupid/dangerous as to what I think I need to do. I also would like to know if I have oversized/undersized any of the fuses/shunt/etc.
While I have read a ton, I am no expert here, so please be gentle....and constructive. Also Any recommendations on 'reasonably priced' fuses/shunts/disconnect switches/etc. are appreciated.
Thanks, in advance,
Larry