My New Solar System Overview.
My New Solar System Overview Yes, it cost a pretty penny and took about 3 days to plan, remove the old system, and install the new system. 675 watts solar, 400 AH Lithium batteries with heat and col...
Forum Discussion
greenno wrote:
Pretty good job sounds like you thought it through.
I kinda did something simular when I replaced my lead/acid battery's and went with (8) Lipo 3.2 cells rated at 280ahr each for a total of 560ahrs. Had to get a BMS and replace my existing on board 120v charger with the correct one for lithium battery profile. Also added the Victron 12/12/18 DC-DC charger and used my existing truck wiring harness and plug to just supplement charging when on the road.
Allready had 510w of solar on the roof and my solar controller is adaptable for lithium as well.
My total cost was a bit cheaper ( yours was more extensive ) at around $2300 for the battery's, BMS, Victron dc-dc charger, wiring and terminal blocks. I think when I did my solar back in 2018 that ran me around 1k or so. So Im $3,300 in total. I don't have an Inverter ( yet ) so I use a small 2200w generator when I need 120v for the anything.
Good video and narration.
I disabled my 7 pin power wire. Remember, the Victron dc dc charger is an isolated system and it is forcing your truck to supply30 amps in my case. I decided it would not be good to connect the non isolated 7 pin wire as it could be detrimental to the dc dc charger. It may be acting as a return path siphoning off power from the dc dc charger that should be going to yourTC lithium batteries. I'd disconnect yours, you don't need it with the new charger.
The more I use this system, the more impressed I am with it. I'm at the Grand Canyon now and its in the low teens at night. I run my furnace all night, 70 degrees, use my laptop a d lights, the lowest I've gotten is 80% charge and my 700 watts solar hasme fully charged by noon. If cloudy or rainy, I drive somewhere and the dc dc charger pumps in 360 watts and charges the batteries in a couple hours or less. It's a winner all day and night. Love my setup. Best of all, with lithium, it's constant voltage, not a gradual dimming or slowing of motors like furnace and water pump you get with lead batteries. Take care.
