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I have (4) 100W panels, and a Renogy 40A MPPT charge controller. Still running a pair of 12V batteries. We've spent a week dry camping, and only ran the genset for the micro. I found some digital meters on ebay so I can monitor voltage/wattage/current for panel output, controller output, and trailer demand. No regrets at all.
By comparison, regardless of price, which batteries would you recommend for solar. (2) 6 Volt batteries, or (2) 12 Volt AGM's ?
thanks ..
Definitely 2 6v batteries. They are designed for more energy storage, the 12v AGMs are for CCAs. You don't need a lot of cold cranking because you aren't trying to start a massive engine.
I get almost twice the Amp Hours from my 6v's than I did my 12v.
BUT...if you can justify the extra cost LiFePo4 is the cats meow.
What's your experience with your batteries at low temperatures? I know the OEM batteries in my Nissan Leaf are a bit sensitive to cold temperatures. They won't charge as high (less range from a charge) and the charge seems to dissipate faster.
What's your experience with your batteries at low temperatures? I know the OEM batteries in my Nissan Leaf are a bit sensitive to cold temperatures. They won't charge as high (less range from a charge) and the charge seems to dissipate faster.
30 months of continuous use now being in outside temps as low as 25f, compartment temp where the batteries are 35-40f and battery cells will be 45f +. With SOC as low 30-35% no issues and that's still using the microwave, coffeemaker.
There is no comparison of lead to LiFePo4 batteries power wise.
Well that makes sense now with the price, you're pricing 200ah or 2 lfp batteries.
I don't use dropins but they sure make it easy for a person. Only time will tell if they hold up over time 10-20 years or 2000, 3000, 4000+ cycles depending on use. Now Battleborn upped the game with a 10 year warranty on their batteries, if not abused that's a long time with a lot of potential power to be stored/ delivered.
I have 3, 100W panels on the roof and another 100W portable "suitcase" panel I can plug in if it's cloudy, or, the trailer sits in a lot of shade. The portable panel has a 20 foot cable so I can put it out in the sun and aim it. Can't say enough good things about the Bogart controller and monitor. I also use the temp sensor so the controller adjusts output based on battery temp.
Currently using 2 group 24 deep cycle batteries with a total of about 150 AH. Will go to 6V in series/parallel when I wear the old ones out. Also run a 3000W inverter for the microwave and wife's hair dryer (yeah, I know). I, on the other hand, must have my espresso maker. No generator.
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