Recent content by Nikolai

Good call - the 250a wasn't showing on the $190 kits w/heat, but I can add heat to the "more basic" kit... tho I'm not finding any AliEpress outlets with the JBD 250-300A models for sale, and neither shows up on their home page... we'll see if they reply to an email inquiry given it's Chinese...

Appreciate the thoughtful reply... and a great point on sizing, but triple checking last night, the 104 cells I got from Michael Caro could be said REPT cells then, as they're exactly half thickness of the 272-304's @ 203h x 173w x 36.5d. So in theory they should fit the RFK's, no? If so, I'd...

Solid ideas... Renogy's *brand* spanking new DC-DC charger/MPPT I've ordered supports 24V, but I'm wondering if the benefits are worth 24V instead of just wiring it up as 4s2p...

Heya, OP... any thoughts on your build after you've had a few months and hopefully cycles on it? I'm looking at building something similar for an overlanding build, but fear height might be a bit tight... on the other hand, really like how durable/isolated the BMS looks on these SFK setups...

For some time, RedArc has more or less held the dual-battery overlanding/boondocking crowd captive with its best-in-class, i.e. smaller/sealed DC-DC chargers w/MPPT, tho apparently many of which have been out of stock a while anyway. With little fanfare, Renogy just released a 50A product with...

Alright, folks... *very* long time since I've lurked here, but finally time to get my 5 kilobucks worth of Michael Caro Lishen's into actual projects... btw, I'd not read up on the Caro saga in several years - Do I remember correctly I'm one of the lucky ones who actually got their cells...

Only 700W?! Nice!!! If you can measure inside supply/return temps and RH, could also calculate output for ya.

Euro 230V single phase is indeed different than our 240V split phase, but the ODU’s don’t know the difference. They see the 240V RMS L-L differential. Most brands give a pretty generous ~20% allowable voltage range. Sadly very few units can take 120V though, meaning we’d need two of most brand’s...

I've been spec'ing/installing these for a decade and have never seen a ceiling mount indoor unit less than 24"x24"... but plenty larger. Also OP, that factory install is impressive... *Very* nicely integrated ODU. Thanks for posting those pics! Edit: I sit corrected, Mitsu makes one marketed...

Surprised to see watts247 selling them before they've obtained UL/CE certs...

Oh of course, 24x24” cassettes make perfect sense! Yes esp. with the slide outs and limited wall space. I’ve spec’d ‘em for supplemental cooling in research settings where some prof brings in a half million dollar whatever it is heat maker and then says the HVAC isn’t working..? I do recall...

Great data, @Lt.Dan For reference, mind sharing what model AC units you have? Rule of thumb for all HVAC is 2-3% power draw diff per degree lift (approx OAT minus SAT), so that tracks pretty well with your “as high as 1800W” comment. Per AHRI/ASHRAE, design OAT is 95F, aka point where units...

Yes! Running the napkin math, HP mini splits will use 60-80% less energy than either propane or straight resistance heat, and about half the cooling energy of those $hit standard RV rooftop units... a no-brainer if you’re using the RV for more than a month or two out of each year, or want to go...

No worries, just meant I'd expect you to see your daily usage drop measurably. In my experience, avg fridge run time was approx. 50%. So mine was pulling ~2kWh daily. If you're saving 60-75% and assuming same run time, you'll be down 5-6kWh avg. daily consumption - substantial!

Amazing build! First, I only read the first/last several pages, but can you share location in which you'll be running? Buddy and I are retrofitting a 40' he just acquired, and as a purveyor of ductless mini split tech, I'm curious how simple it might be to retrofit a unit for him. He's pulling...