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https://www.progressiverc.com/products/isdt-p30 I’m guessing I screwed up and used a charger meant for an isolated setup with a non-isolated setup (the renogy). Polarity is fine or else I wouldn’t be able to operate the second charger from one of the sets of wires. A bummer because the...

It looks like a few people are using it on 14v systems so it will hopefully work (just bought two of them myself...)

I just found an app to estimate angle of the panels and where I’m located and it looks like ideal December angle for me is just under 65 degrees and if I drive further north in the US it could hit 70 degrees for optimal angle. Pretty wild. Summer it’s 17 degrees where I’m at. But 25-30% of...

Hello! I’m looking to charge my 400 AH battery bank with a second charger while driving. Currently I use a 50 amp renogy DC to DC charger/MPPT. I’ve upgraded from a 150 to 270 amp alternator to increase the alternator charging (I have high load stuff like 3D printer, pressure cooker, tons of...

I have 54 lishen 18AH cells I’m planning to make a 6S9P setup with, delete the starting battery, and use some resistors with the alternator to slightly increase the charging voltage, as many have done in car audio groups. Doing all this to 1: charge the LTO bank faster than most available DC to...

Yeah at warm idle in park it’s like .4 gallons per hour. V8 4.7L toyota. Not the most fuel efficient but it will last 500k miles

Yeah I’m emailing the manufacturer back and forth and will probably get a slightly smaller pulley. I think other vehicles they put these in must have a higher idle. But in park once warm it’s 550-600 RPM’s and 500 RPMs in drive and that seems to be completely fine and normal for these 4.7L...

Trying to run a 3D printer off of batteries, I currently have them in 12v configuration but will be switching to series for 24v. I can’t find specs for the voltage on the 3D printer I have to see if it would be okay with peak charging voltage for LiFe so I’m looking for a steady 24v output...

It’s still $15 for a super super tiny tube like many other computer paste options. The sides of my renogy batteries are terribly not flat and filling in all those pockets would take a lot.

Just to clarify, in tests I was only using a few amps on charger number 2 so total amps was not an issue. When I put in the new alternator a few months ago I upgraded the OEM 2 and 4 AWG cable to 4/0 cable everywhere in the engine bay (positive to starter and all ground points). Alternator is...

Hello! A little over a year ago I bought two renogy 100AH batteries since I needed something ASAP for work and Battleborn would have taken too long. In retrospect I wish I would have risked it for the Battleborn. I recently disconnected my battery system to insulate the Renogy batteries and...

What’s the lowest ambient temperature been so far and how long does it take to cool back down to 34?

So I finally decided to dive into solar this summer now that my power uses are so high (65L fridge/freezer, tons of camera/drone batteries, pressure cooker, 3D printer) and a 100W panel kept up with the 12v fridge uses while I was gone on extended work trips. I decided to put my 2 200 amp 12v...

In a SUV so the best I can get (that has high amps at low RPMs anyway) is 270a 12v. I wish there was room somehow for a second alt. It can do 200 amps at idle RPMs and I’m planning to work up my charge to 150 amps during idle and 200 amps while driving. This is in the vehicle mounted forum and...

But then the alternator is increasing the fuel and for maximum efficiency I’m ramping up the RPM’s of the car a little bit to get close to the 270 amps of the alternator. it’s at least 1/4 to 1/3 a gallon/hour at the very lowest RPMs and that’s without a big alternator load, currently only used...

Hello! So I’m just about to finish up my first system and I was stumbling over the orientation of my circuit breakers vs what the blueprint shows and where I should add additions fuses, etc. the instructions say have the nat side of the CB facing the battery and the load on the other side, but...

So I think the lack of an actually flat surface on the sides of my batteries is slowing down the heat transfer. I was going to fill the gaps with rtv silicone sealant but then quickly realized that is thermally insulative, not conductive and that may have the opposite effect I am looking for...

Sorry, I did mean WH a few times. Yes, I did mean watt hours. Edited my initial post. And I meant 100 watt hours on a completely sunny winter day. Judging from the wattage I’d get when the sun was at a similar angle when I installed the panels. How much would temps play into the output? I saw...

15* amps as I’m switching to 24v soon. I found a singular buck or boost only 12 to 24 or 24 to 12, I just want a solid consistent 15 amp 24v out because several of the 3D printer components could negatively affect the printing by any change in voltage. I have a compact $60 DC fpv charger that...

So I'm following the 400w w/alternator blueprint (without solar) and I was thinking about putting the circuit breaker between the starter battery and DC to DC charger before the firewall. That way it isolates the wire downstream leading into the vehicle. But then I'd have no easy off switch...

If they were extremely low power, would it be okay to stick the silicone pads directly on the batteries? I'm using two 100AH Renogy batteries and I have ordered a handful of 1 amp 12v pads (one on each side of each 100AH battery, 8 total) that I plan to run at 5v (or 9v in very extreme cold)...

What's the highest output options for a 12 to 24v dc to dc converter with a charge profile? I'm in the process of figuring out a setup for an 11S 24v LTO system. I was hoping to take advantage of the faster charge times and use a bigger DC to DC converter (currently use a 50 amp one with my old...

I found a lot over the last week, even some modified silicone adhesive like regular rtv that was really good, but like $70-100+ for a small tube. Cheapest seemed to be $45 on amazon for some MG chemicals stuff. I was just hoping there would be something that was somewhere between thermal...