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After some extensive lip-chewing, we're going to expand and get x16 280ah cells. This will be a separate bank from our existing LFP bank, each powering a different living structure. For now I'm anticipating just going with a 12v bank. I had two main questions; 1. Can you get a 12v BMS bigger...

Another question about our new setup! We're loving the switch to LFP. Now that spring is near, we're seeing bright, beautiful days of full sun after 2-3 months of low light. So for the first time, our battery is really getting power-charged. We've recently been running into a problem when...

Here's something I couldn't find any hits on when I searched the forums. I'm sick of finding a dead trailcam, sick of throwing out AA batteries, and the cost of the *cheapest* rechargeable AA batteries equates to the cost of 3-4 years worth of single-use Duracell AA's. They're not really a...

After switching from lead acids and getting acquainted with our 4 cell 12v 280ah build, we're ready to expand. I'm temped to buy on aliexpress but worry about mismatched cells and poor quality. Granted I just bought my first 4 off ebay and have little idea where they came from. But they seem...

I heard a strange charging theory yesterday and I wanted to propose it here and see what others thought. Someone recently commented that since lifepo4's will take as much amperage as you can give them very quickly, you can feed them power directly from a high amperage 12v alternator (in this...

So it's 3am here, hopefully I make sense when I type this out. We just switched to lifop4 a few days ago, and we've been thrilled so far. But around 2:30 this morning I woke up to the inverter screaming (we're off-grid, the cabin is powered by batteries). The battery is at 10.0! Hopefully...

We just switched to LiFePo4. The Charge controller I'm using is an Epever MPPT Tracer and I've successfully programmed it for Lithium. I also have an older CC. It's got no brand on it. I bought it like 6 years ago. It's a small black PWM 60amp charger with 4 buttons on it. It "is"...

I programmed my CC as per the guidelines I found on multiple posts here. Only problem is two of the parameters kept giving me Parameter Errors. These were the Equalize Charging Voltage, recommended at 14.4, but my unit won’t let me drop it below 14.6. And Under voltage warning voltage...

I'm working on my first LiFePo4 bank and am shopping for a BMS. Some have like 50 wires coming off them, others just 2. Can someone explain the difference? Or recommend a good BMS? I'm not sure how to size amperage on the BMS. My array and charge controller (programmable for lithium) are...