We would like to replace the lead-acid batteries with Lithium ones. The Magnum we have doesn't support a lithium profile, I have talked to Magnum and it need the control board replace/updated and they gave me a number of service centers to call. None of them will do the upgrades or sell me the board, so at dead end or so it seems.
A local sevice center has suggested replacement with Renogy Inv/chg 3000W Pure Sine wave or Xantrex Inv/Chg Freedom XC Pro 3000W. Anyone else have experience with either of these or other suggestions.
Also when going to Lithuim Batteries should these be moved to a better conditioned area?
TIA
Bruce Simms
bruce@thesimms.us
Shiloh Illinois
Have you added Solar and do lots of BoonDocking?? If not why make such an expensive change?
Michelle & Ann
2018 Chevy 3500HD Crew Cab High Country DRW, D/A, 2016 RW39MB, Dual ACs, Auto Level, Auto Sat Dish, Stack W/D, King Sleep #, 17.5" Sailuns w/Disc, MORryde IS & Pin, Comfort Ride Hitch, 5.5 Onan, Res Fridge & Induction Cook Top
I guess its a matter of what you consider expensive. I recently helped a member install a new inverter replacing his Magnum. We chose a Victron Energy Multiplus-II 12/3000/12-50 2X12 at 1500$. The reason was because it handles the 50 service your Redwood is wired for. That means you didn’t need a sub panel or anything. In this case the magnum ran the fridge, and just the fridge. We wanted the whole RV to function on battery. Ie: the tv, the fridge, the outlets, the coffee maker, and the ever popular electric recliners. Its a super simple install if you have space in your bay and includes a beefy batter charger that will handle all chemistry in case you do go lithium.
I have the same Victron inverter and I dont boondocks as much as I mooch dock using harvest hosts and some others. This particular inverter has a neat feature called PowerAssist. Let’s say your in a friends driveway and plugged into his garage using a 15Amp plug. If you have ever tried this you know there is no chance you running you air and even running the microwave while the fridge is running can be tricky. This inverter will use the power from the batteries when you need it and top you up to a regular 30 or 50 amp service. Then when the load drops (typically when your sleeping) it will use the same 15Amp coining in to recharge the batteries Brilliant.
I think a whole house inverter is a good use of resources. Then I would focus on batteries. ANd if your going to the Rally a number of people will be doing a group solar install.
