Search results

I have an Epever Tracer 40A charge controller on a 2.4kw 24v lifepo4 portable power station. I’d like to be able to use my 500kwh of 40v cordless mower/chainsaw batteries as backup in case of an emergency. If I use a battery adapter and run it to the solar-ins on my Tracer, will that work...

I have an opportunity to snag some new Grade A 300w Hyundai panels by driving a few hours away. I don’t really see enough reviews/prices on them to know if they’re worth the effort, but $180 +tax each seems pretty tempting. I have plans for future residential application. Anyone familiar with...

What is the best lithium battery chemistry for cold environments? I’m in northeastern Ohio, and our winters aren’t brutal, but every few years we end up with 3-5 days of sub-zero temps in a row. I want to setup an insulated solar shed with a grid-tie + battery bank of 5-10KW. Will lifepo4 with a...

Here’s a super lightweight and cheap adjustable stand design that I use for 100w flex panel pairs. Each unit costs <$15 to make and weighs <2 lbs. The tilt/kickstand adjusts with a wing nut and bolt — it can go from about 25-80 degrees and also fold in to lay the whole thing flat. All non-moving...

I got some great feedback on my first build of a 24v portable power station, so here are the updates: - Exterior AND interior 12v atv undercarriage lights run off a 5amp step-down w/ switches. Lights are fuse-protected and always ready for use regardless of how the breakers are set. The “show...

I want to rig-up a bicycle generator as a backup charger for the 2.4kw/24v lifepo4 battery in my portable rig. If I use a mounted turbine of the appropriate voltage/wattage and don’t push for 100% SOC, is there any reason I can’t just plug into the SAE that connects to my Epever Tracer 40...

I bought a pair of cheap Chinese battery-maintaining panels w/ twin USB ports and put them in parallel w/ butt connectors and plenty of heat shrink. Rather than buying another 8mm connector, I just cut/reused the plug from the DC charger that came with the Jackery because I think charging solar...

I wanted to make a stand-alone home backup unit that was modular and small enough to move easily— but robust enough for sustained power tool use and 2+ days of emergency lighting and refrigeration. Stretch goal: an attractive form factor that doesn’t involve a hand truck. To keep the build...

I’ve built a 24v 2.4kw system that I will be using entirely stand-alone/unbonded for emergency backup, camping, and off-grid homestead setup. The (Xijia) inverter has built-in 8x protection and outlets I’ve run from it are GFCI protected, even though it will be used indoors/protected. The system...