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I suppose 12vdc as a supply voltage? I've used these for about ten years that can be for both heating and cooling. Enter desired turn on and turn off temps for a narrow or wide differential. They only have one one probe for sensing. Contacts rated for ten amps. I've never exceeded five. The...

Quick and dirty: Ready a replacement fuse. Brush the two wires together. There should be sparks and a blown fuse if you leave the wires connected too long. Another way: Use a fuse with a lower rating than the one installed. Connect your wires to each side of that lower rated fuse. It...

Use the amps way down at the bottom of the ad to determine how long you can run the compressor: ELECTRIAL Rated voltage DC 12V / 24V Current range 21-58A / 15-35A Standby power 1W Soft...

Congratulations! My similar setup on a van with a 130 amp dumb alternator has provided 50-60 amps into two 100ah lifepo4 batteries at idle with no problems. That same setup worked fine with my camper and tow Silverado's smart alternator until I stepped up from a 30 amp charger to 50 amps...

Beautiful shine! You mentioned cleaner wax. What is that product?

^^^^^Huh Oh! Wrong info in that post. The bluetooth voltage on mine is the voltage of the battery at present. It is NOT the charging voltage applied as mentioned above. You would need to test the charger voltage measured at the battery terminals to see if the charger voltage is high enough...

Martinjmper, the 13.32 volts seen on your charging screenshot is curious. My testing with an adjustable voltage power supply shows low charging amps until charging voltage seen on the bluetooth screen rises to about 13.8vdc. My batteries don't fully charge without voltage in the low fourteens.

Yes, it was your review that caused me to purchase two Elefast lifepo4 batteries as mentioned in a prior post. Thanks.

Looks great. I've also seen that my camper's inverter (charger) outputs 13.3vdc most of the time. Not enough. I'm curious, can you tell if your engine grunts or changes rpm when beginning charging? Mine doesn't, but some have in my past experience. Waiting around for Lifepo4 prices to fall...

Sounds like a plan. There is a reason, as you've discovered, that alternating current replaced DC for distances. Smaller wire. I've discovered my camper's 45 amp converter (battery charger) does not have a lithium selection, and can provide limited charging voltage . It does output too high...

I thought of one other possible plus to the portable inverter system. If your charging system does not output a high enough voltage DC, the inverter becomes a constant 120vac voltage supply that draws a few extra amps from the battery when needed, somewhat like a DC-DC converter. I connected...

Congratulations on Dave’s advice and now having a functional DC-DC for one of your batteries! If I already had a DC-DC charger installed, I would not do the direct wire method since that seems more than enough amps based upon your past experience with that battery. Yes, the brown cord from...

TL/DR: Try direct connection charging. Remove the wires from the DC-DC, connect them together, then look at bluetooth screen. I’ve been following along as my situation is similar. After my seven-year old 100ah AGM decayed, and lifepo4 prices decreased, I took the plunge. I’ve been using the...

Yes, the amps seen on your bluetooth screen is the sum of amps in and out. Negative number means being discharged. Disconnect loads, and it is just charging amps coming in. That would be handy for the following charging test. You have already verified 14+ volts from your vehicle at the DC-DC...

TL;DR. The last three paragraphs are important for me. Crickets. Still traveling Mrtnjmpr? I just purchased two of the Elefast batteries rruff posted above. I now know that the voltage seen on the bluetooth screen on mine is indeed the voltage seen from the charger. Your screen shot showing...

Has it worked before, or is this a first time use? Do you have an activation (really small wire) connected to your vehicles 12v or another really small output current reducing wire connected somewhere? Possibly disconnect the solar panels and see what happens. Don't try the old jumper cable...

Has anyone used a lifepo4 in an engine compartment? When my seven year old AGM house battery dies, I planned on that battery box to become vacant because of heat concerns.

Thanks for the link to the carb cheater. I thoroughly enjoyed the video, and learned a lot. I have carbs, but no dramatic altitude changes. The non-metallic air bleed plate used could help keep heat away from the carb, also. I've had good luck with a short piece of fuel line with a screw...

I have old memories of driving across the USA on fairly new and under construction interstates while burning leaded gas. Slight and not so slight "rolling coal" seen from tailpipes when hitting the Rockies. I saw drivers removing air filters and other methods to try to lean. What spot and...

Back to the first post. Since your Martinjmpr jumper cables charged your batteries, it seems you have sufficient alternator charging voltage at idle to provide some battery charging. Some, determined by monitoring. All alternator equipped vehicles I've owned, at idle, attempt to charge the...