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So here's take two. For the vehicles charging system, I'll be doing a Big Three upgrade along with a higher output alternator. 2 AWG Pos & Neg cable will be run from the battery to "electric closet" BSS 60amp breaker for house & vehicle battery with vehicle most likely mounted under hood...

So here's take two. For the vehicles charging system, I'll be doing a Big Three upgrade along with a higher output alternator. 2 AWG Pos & Neg cable will be run from the battery to "electric closet" BSS 60amp breaker for house & vehicle battery with vehicle most likely mounted under hood...

For my install a fuse box with terminals on the backside would be the bee's knees. However, after searching around yesterday I only came up with one: https://www.amazon.com/dp/B01N25TJV3/?coliid=INV7Y8BWZWUVH&colid=2KPBM55BS504P&psc=1&ref_=lv_ov_lig_dp_it Figured I'd check to see if anyone knows...

Thanks, that's a good idea. I'd actually just dabbled with a FreeCAD last year, time to do some more! Along with fitting, being able to slide out/remove the works I'd have to have some easy disconnect points or something like this: 2 AWG 175 Amp https://www.summitracing.com/parts/aaf-all76322

Thanks, I was wondering about that. I do have balance tap adapters, I'll solder up some wires for 4S and finish off with a balance charge.

Thanks Snoobler, I'd ended up going with one of those batteries I'd linked in my other thread. I found something that said cells should be top balanced before connecting the BMS and in searching I came across Will's video on it a couple days ago then this thread. I have an RC/hobby charger I...

Yes, but I believe it will still discharge down to 0ish or so. That's where I think up top will help in the winter, even it dips to freezing or below at night being under the high top should warm up fairly quickly once the sun is up. I'm converting my conversion van, so where ever I end up...

Okey doke, I'll go with the alcove then and put a couple circulating fans in and monitor temps in the summer/warmer weather. I'd looked into thermal environments etc but didn't find anything to help this decision. Thanks!

I'm planning on travelling around a bit trying to travel with the weather, southerly in the winter and northerly in the summer in hopes of avoiding lengthy extreme heat or cold. So I wouldn't expect below 32 nights frequently, but in warmer weather in the alcove in direct sunlight I'd imagine...

So I have a conversion van that I've gutted to convert. The house battery I'd planned on mounting in the alcove above the front seats as it's a nice out of the way spot. Then I got to thinking it may get too hot up there in the summer so I was thinking about mounting them in the back behind the...

So my DMT-1250 will be arriving today, hopefully, and I still have yet to run wires to the back of my van to mount it. It calls for Pos. & Neg. on each connection, I can just run a Pos. cable back from the battery and a Neg. from the frame to a distribution rail and then connect individual Neg...

Not necessarily, in the case of a previous post, dude had his starter battery drain attempting to charge the house battery. While the system seems to be generally decent, if you look above at my previous post 503 you'll see a quick rundown. I myself haven't purchased yet and am thinking I'll try...

Thanks, looks like the decimal point got lost in the translation, phew!

What are you guys using to measure consumption? I have a 120v plug in model that can read live A & W draw, boy I wish it draw me a draft A&W, and as well total W usage over an elapsed time. So this morning it shows .14 KWH over 6.6 hours, which is 14000W divided by 120V for 116.6A? Seems high to...

From what I gather It must to be able to charge LiFePO4.

Interesting, I'm looking forward to the results. While I have a ResMed unit, my sister has a DreamStation she never uses and even said I could have before I got mine through health care. Oh yeah, so I'd like to see about a head to head on 12v consumption.

Actually, one more question about calculating charge time. Certainly a 50A charger would charge faster than a 30A, but how much faster? Maybe saving $50 on a charger is worth an X minute longer charge...

Thanks DT, that helped quite a bit. I was thinking along those lines and confirmation was great.

So one aspect I'm finding a little mystifying, amps and component selection. Charger amperage selections, the rated amperage is what it can put in to the battery, and as well take from the alternator. So for this it needs to fall within charge specs for the battery, and available alternator...

So after reading through the entire thread, here's my take on the gist: Unit limits current from one input if any current is sensed from the other input Can drain starter battery if house battery is low LFP float voltage is high, adjustable w/BlueTooth module There were some other things...

I tested mine last night, on 110 though, with the humidifier on and doing a preheat prior to use it came up with .17 kw over 7.5 hours. Humidifier is set on 4 out of 8. It does use some juice in standby mode, also as well being a cellular device I'm sure it's doing other stuff in the background...

Just curious if anyone is using an RPi or Arduino in their solar setups, either for the DIY factor, or in place of a not readily available product. First time dabbler, just curious to see real world practical use applications.

Some good stuff here for a guy planning his build with CPAP in mind. This is the 12v cord I found for my ResMed: https://smile.amazon.com/dp/B07P6H994Q/?coliid=I3USAYZQC4TR7J&colid=1ODC36DNV3D23&psc=1&ref_=lv_ov_lig_dp_it

Reading my mind, I was just looking into the differences... Looking at 200AH so I have an easily usable 100AH

Thanks for your time and help Snoobler. I think for now I'm just going to go with an AGM or gel battery. Plus I'll have more to put towards a solar panel. This DIY battery stuff is too much for me right now, and non-DIY batteries are too much $$ for me right now lol.

I'm not certain of anything at this point other than there's too much uncertainty around all this... I give up for now, getting a little frustratedly overwhelmed. But as far as a testing plan, no, I don't know how or what to test, I do have a multimeter for a volt check.

Yeah, but seems they are all in China? I'd prefer something US based, or at least US inventory for a first time experience with all this. Mainly for quicker initial delivery and in case and warranty issues arise, hopefully a replacement would only be states away instead of the other side of the...

Didn't want to start a new thread, but does this look like a good buy, brand, seller etc? Aliexpress but inventory is US based...

Ha, same, but the didgeridoo may be fun to take up while I'm out vanning around the country ;)

Here's something interesting I came across a little ways back. https://www.verywellhealth.com/learn-to-play-the-didgeridoo-to-treat-sleep-apnea-3015177

Any thoughts on how the 110v cord usage will compare top the 12v cord usage? I haven't ordered a 12v yet, and nothing to plug it in to.

My water chamber comes off as well but requires a separate plate to be installed to complete the air circuit. I'd just gotten one as I haven't used the humidifier in moths, but with dry winter upon us I've been using it of late. I need to recheck W usage. I have a ResMed AirSense10

Cool, thanks, being unsure figured I'd ask. Spot on about just buying from an actual company over CL.

Contemplating going with them, do they look like a good deal, anything I should ask or look for? $70 cheaper than the 120ah batter I'd been looking at, plus no sales tax. https://washingtondc.craigslist.org/nva/for/d/fairfax-lifepo4-100-h-battery-cells/7238704366.html

Nice to hear some first hand experience! I'd come across something similar after seeing this video and dreams of DIYing my own house batter ran through my mind.