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$99 on Amazon. Just ordered it after accidentally discharging my solar bank. Testing here at home shows it works very well. Was easy to set up. If you’re looking for a coulomb counting battery meter, this is a great alternative. Works up to 500 amp hours on a 12 V battery.

So, if I want to charge my LiPO batteries from a wall outlet, can I just buy an amazon car charger like https://www.amazon.com/dp/B079FBWS69/ref=cm_sw_r_cp_api_i_L-0QDbAAYPSYR then plug in and charge? Also, it’s a 4a charger so should I assume it puts 4a/hr into the battery so a 100ah battery...

Looking at a variety of possible solar controllers (all mppt), Some specifically say they are lithium battery compatible and others do not. A great example is EPEVER https://www.amazon.com/dp/B07TTFWG4C/ref=cm_sw_r_cp_api_i_Xj0QDb8JN3HEE which looks like a great unit but specifically says it...

So, I have a Renogy Rover 30a controller being fed by 4 100w panels charging a 12 V battery bank. This puts me near the theoretical limit of what my controller can handle. E.G., 400W/12V = 28.57 amp output, near the limit. However, my solar cells are considerably off-angle. I've never seen...

Elevating this from another topic. I have two Renogy Lipo batteries that I hope to store in my cabin over the winter. This will mean they are sitting, disconnected, through a couple of very cold winter months, getting down to below zero. Is this potentially damaging? Some info on the web says...

One thing I've recently discovered is that I can mostly avoid an inverter by hooking things up to USB outlets. This is widely possible thanks to two gadgets. The first is the 12v USB quick charge outlets usually put into cars and boats. I'm wiring these up in numerous locations. The second...

My system is in a 2-3 season cabin in the woods. When I'm not there, I really want to make sure things are safe. Basically, I have a controller that connects to (1) solar panels (2) batteries. Diagram is below (by the way, any feedback on my wiring and fusing appreciated!). My plan is to add...

setting up 4 100w panels going into a 30 amp renogy rover contoller. the four panels will be close to one another on a roof and are shaded vs sunlit together. I could do 2x2 series/parallel or just go series. I'm currently thinking it doesn't matter because both are the same power and the...