Lithium Battery Charging System
It is time for a new battery in my '04 Lance 921. I am looking at an Interstate battery they sell up the road. But through my research into charging systems/problems, I got to thinking about Lithium...
Forum Discussion
greenno wrote:
I ended up building my own LifePO4 set-up myself.
Went from 98ahr's to 560ahr's.
Already had 510w of solar on roof and a 30a charge controller that was compatible. Changed out my 120v on-board charger ( have yet to even use ). Also added a Victron DC/DC 18a isolated charger to top off when driving down the road and never have to worry.
Also added a 3000w inverter that we use for the coffee maker in the AM and occasional microwave use and haven't used my generator since going this route.
Probably set me back 2.5k total but should last quite a while.
With the storage capacity I have now I don't even charge everyday.
Not a cheap way to go but I know it will last and it's installed correctly.
Retired IBEW Contractor here in SD so I gots the skills.
Good luck.
I'm close to the same solar and battery system as you with a couple differences.. Four solar panels on the roof, 180, 190, 190, and 115 watts respectively for 675 watts total power. Two 202 AH LIFEPO batteries for a total of 404 watts. I oversized the solar because we live in the Pacific Northwest and are subject to low winter sun and lots of cloudy, rainy days. Victron 150|70 MPPT Converter and for driving and backup, a Victron Orion DC to DC 30 amp 12 volt charger. I have a Xantrex 600 watt Pure Sinewave Inverter that we're happy with for now, don't know if I'll ever upgrade to the Victron 3000 watt inverter. My system cost $ 6200.00 for everything at Discount Solar in Quartzite. I shopped around at the time and several stores simply didn't have stock or were running out of stock. I'm sure I got the bend over special but I am happy with the performance of the system. Highly recommend LIFEPO to anyone looking to change batteries.
