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I am thinking about installing some tiny fans in a piece of plastic to put in in the top of a roll down window under/behind a rain guard. The battery is 24V. If I use 12V fans and a inline step down do I need a inline fuse after the stepdown? I'm ordering a few parts from rock auto and they have...

For those of you with both the AC and low voltage DC systems do you ground both systems to earth on the same grounding rod? Do you use two separate grounding points/grounding rods. I thought I needed to have two separate grounding rods for each system. I was going to run the AC grounding...

https://springpump.com/product/peripheral-solar-water-pump-direct-dc-24vsy-qb70-550/ Has anyone used this water pump. Do you think is any good. Could this be hooked to a pressure tank. This would be used to pump water for a off-grid cabin from a rainwater water tank.

Do I really need a clamp meter when building a battery and installing a van electrical system? I have a Fluke 117 multimeter coming in the mail. Should I buy all the equipment I need to do a compacity test on new cells or just top balance them with the multimeter. The cells are new "Grade A"...

I plan to use 450watt panels. I want to put two panels per string in parallel because I'm using Electrodocus. The runs will be quite short because it's a 12x16 ft cabin so voltage drop isn't that much of a concern. I was gifted a bunch of 10 AWG RMW-2 wire. It says the circuit protection should...

I have a EG4 solar air conditioner. I'm using 10 awg wire for the positive and negative and the positive is fused at 15 amps. The panel ISC is 9.69 A. I used a 12 awg to ground the disconnect to the combiner box. The solar panels are grounded to the main breaker using a 6AWG wire. That circuit...