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Doing a commissioning charge on the pack. Put in 280AH at 120A, then dialed back the charge from 120A to 35A. Looks like I have one cell group thats higher than the other three. 3.39V vs 3.47V currently. Thats probably around 10-20% imbalance, but just guessing based on some LFP logging others...

Please do. I am sure there are plenty of curious minds who would miss it buried in my thread. ------------------ The Orion BMS uses open drain outputs to control stuff. Since the RBS uses a 12V (open source) trigger, I needed to invert the signal. I also wasn't sure if the RBS would exceed...

It depends on the BMS. Not all of them will switch the in/out FETs separately. Some will only switch them together, acting like a standard relay.

The RBS does take a normal switch input, which is what I have (it even comes with a switch). Instead of dicking around with disconnecting your solar panels, etc, I would just get a 5AH AGM battery (common for UPS, fire alarm systems etc), and wire it in parallel with your lithium bank, on...

https://www.bluesea.com/products/7700/ML-RBS_Remote_Battery_Switch_with_Manual_Control_-_12V_DC_500A I am certain a simple on/off signal is all that's required.

For all intents no current will pass to or from the battery. The latching relay can interrupt either the positive or negative feed. For ease of wiring mine switches the positive feed. The Blue SEA Remote Battery Switch has its own internal logic board. It is wired like a normal relay...

Some of the FET BMS have a small leakage current ( a few nano amps or so) when off. If there is no load, the terminals may read a volt or two. If necessary you can add a high value resistor across the output terminals, which will pull it down when the BMS is off. The BMS I am using does not...

Yes, just the bottom.

Got the shower curtain installed. Jen sourced some stainless fixture pins. These are positive retention with a release button. The curtain is a standard length XPLR Outfitters model. On the bottom there are 4 15lb magnet catches. I will sew one side to the curtain, and bond the other to...

Got the box dropped in. All the heavy wiring is done. Still need to do comm and control wiring. Plus reprogram my inverter, monitor, and solar controller. You can see the blue sea RBS, and my ACR. I am using the ACR as a standard relay though, as its voltage logic is no good for a lithium pack.

Installed the heating pad to the pack. When I removed the backing paper, I discoverd the heating element stops 1-1.5" from the edges. So I could safely trim the foam down for a better fit. A was also able to remove some material from the side with the wire entry, and relocate the wire...

Started the AC unit at 8:30 this morning. Its been a bit over 8 hours. Total energy consumption is around 3.8kw-hr. The van has been in full sun since 9:30. Its currently 90F and 35% humidity. Its not cold in the van, but its stayed below 85F, and the humidity is low. So its comfortable...

Australia is quite flat. Even the high country of Victoria caps out at 7,300ft/2,280m. Assuming you don't want to do 120kph+ across the NT, not much need for higher power. Except maybe to get out of a road trains way. They are about the only vehicle big enough to enforce right of way on a...

Coming along. Wiring is quite tedious as usual. Got the BMS powered on, and it appears to be in working order. I need to work out a number of wiring runs between the main electrical cabinet and the battery box. I am still working out how to attach my negative cable to the terminal. There...

Quick update while I am waiting for the unit to stabilize. I charged about 11oz of R410A. Though I vapor charged (intentionally) to get more of the R32 out of the mix. R410 is a 50/50 mix of R32 and R125. I wish I could have run the unit previously to see what the superheat was. Anyways...

Got 6 of the cells today, should get the others tomorrow. Packaging was good, and cells all measure 3.298V. Got the busbars drilled and surfaced flat. I am about done with the battery box, just need to weld the hold down blocks to the bottom, and paint it.

Sooting the heat exchanger and combustion chamber is not typically a fuel issue. So using kerosene is not likely to help much. Lots of soot is a lack of air typically. Too many bends, too long of intake/exhaust. If you are camping at high altitudes, you either need to let the unit breathe...

Still working on the galley. Getting close to paint. Need to buff the top, and brush the visible welds. When I was removing the cooktop I got the corn cockeyed on some old silicone. Put a 3" crack in the top... I filled it with some windshield repair resin. However it looks like the top...

Got a notification that the cells have been delivered to Fedex. Guess I had better get this battery box finished...

Yeah, tradeoffs. Trying to balance, size, weight, complexity, and cost. I like the ball valves, they are just a bit big. I might be able to work with a manual shutoff to switch between winter and summer mode. Not as user friendly as a dynamic control scheme, but definitely smaller and...