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Nitromethene43 beat me to it. I have a 24v truck which had been badly set up for a 12v camper. Over three years of conversions and it is clear that I would have been $$$$ and headaches ahead had I simply replaced the 12v inverter/charger and solar controller on day one and gone all 24v. As...

No! Look at Verstad’s diagram. That is what you want. Master positive lead on one battery and master negative lead on the other.

With only two batteries, it is not a huge mathata, but this will help you understand the issue and shows you the cure. SmartGauge Electronics - Interconnecting multiple batteries to form one larger bank

Yer overthinking this a bit. -- While the new CETK 250 can charge lithium, it is not clear that the SmartPass can be used with any but lead acid. I would check with CTEK. -- The Victron Cyrix-Li is a smart relay with higher voltage settings to work with lithium batteries. The problem is not...

Short answer is “voltage regulator.” Basically, when the relay is closed, then the alternator “sees” both batteries as one, single battery. EDITIED TO ADD: And the same is true of the load(s).

In the case of my REDARCs, this was confirmed with the factory. Nothing passes back to the alternator. And, in any case, it is moot as the starter battery is still in the circuit. (You could wire a B2B directly to the alternator, but most of us wire to the positive terminal of the starter...

Having looked at some of this, I would offer. -- My Chevrolet had twin alternators, but I could never find a detailed enough wiring diagram to let me know if I could safely separate the two. If you can simply add a new, dedicated alternator - which may be possible with a bracket from the folks...

??? The order shown in the diagram. Normally, the fuse is as close to the battery as possible, but you could install a master kill switch even closer. Are you trying to isolate the battery or the load? If the latter, then put the switch next to the load you are isolating. But, much as I love...

This help? Low Voltage Cutout (shopify.com)

A relay is MUCH more efficient. The only reasons to use a DC-DC with lithium are: -- The voltages on your truck are too high. (e.g., GM) -- Your lithium bank is so large (e.g., larger than, say 200Ah) that it will overheat your alternator or cables. A DC-DC charger is a simple, albeit...

Interesting. The Renogy manual does say to " ... connect the positive and negative terminals of the first battery to the system." But it also limits you to four batteries, probably because the limitations of their balancing circuity. Also interesting that the video shows the batteries connected...

As I sit here scanning old negatives into digital ... We are in the early days of electrical vehicles, but the change is underway. Remember when? -- Sailing ships crossed the ocean because steam ships lacked the range? -- Ships burned coal because oil wasn't available? -- Horses pulled wagons...

Been a composting toilet phanboi for years. First a Natures Head, now a C-Head. Hated the cassette! Why We Love the Loneliest Road or back on Route 50 again. | DiploStrat

Composting toilet shouldn't care. The hydronics could be another story.

While we are all washing up ... Beloved Spouse and I, and the cat, go through about 10 USG of fresh water a day, at full "motorhome" consumption. That is, two showers, drinking, meal prep and washing, and way too much coffee. On any kind of water rationing, e.g. bathing every other day, you...

Anecdotes are worth what you pay for them, but I had a Nova Kool on my Tiger - worked perfectly for years. Two door Norcold on my XP - repaired multiple times, replaced, failed again. Now have a two door Nova Kool - working perfectly for a year or so. Caveat emptor, YMMV, etc.

These folks are wonderful. Use your browser's translate functions if you do not speak German. Forum - LN2-Forum.de (ln2-forum.de)

If you use a B2B you can simply jump around it with a jumper cable or wire in a bypass link controlled with a manual switch or a solenoid. Easy.

As noted,: -- Keep weight forward, -- Water inside to avoid freezing, -- Over 50 USG there may be advantages to separate tanks or internal baffles, -- A six inch cleanout opening is nice, -- Put the drain valve inside the heated camper. (Don't ask how I learned about this.) -- Add a gross...

At 90 MPH. When under charge, the batteries just have to be grossly of the same type, e.g. lead acid or lithium. (Assuming that the charge profile is correct.) When combined in the same bank, the batteries should be identical. Better if from the same production run, etc. If separated when...