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Hmm, I have a halogen 12v headlight that I wired for discharging individual cells on my last pack, but doing that on each cell would be a many-day endeavor, and having to watch to catch it at 3v... yikes. Not sure if I'm that motivated to figure out the near-exact capacity of each cell. I'll...

Yeah, used paypal. Pretty sure I'd have to pay shipping back if I'm dissatisfied, no clue what that costs, but that also feels like shipping something in to the void. So I'm hoping for at least 150ah - and I'd like to think that's possible if these are anywhere near legit. Ideally they'll...

I got these stupid things yesterday and sat them side by side. Two sit flush together, two do not... so I guess there's some swelling. I'm sure not all blue wraps are the same, but they're the same in the sense that you probably have no idea ****** they actually are. Question for guys that know...

Ah that makes sense. Crafty, I guess. But glad you and luthj think there's a chance I got cells at least in the ballpark of the advertised capacity. Pretty set on using the ammo can you used, so that'll give me more room in the front of the box to fiddle with wiring - bms - active balancer...

My shipping updated and it's due 9/21 which isn't bad. It's weird because the country of origin appears to be US, as the label was created in the United States on 9/11, and sat in awaiting delivery to UPS facility (or something of that nature) until 3 hours ago and is in Cerritos, CA. The...

Is that always going to be open when in use? Looks... hot.

Yeah I noticed the charge preset is listed as Li-ion in the demo app for the blue solar line but clarified everywhere else as lifepo4. I wouldn't call the lack of custom settings a deal breaker though especially for the price. Charging to 14.2 might be overdoing it but it doesn't seem like the...

If you mean BMS, the one I linked two posts earlier by Deligreen. If you mean active balancer, QNBBM 4S Balancer/Equalizer. If you mean battery, the one that has 195ah in the thumbnail but says 195ah 190ah not 200ah not 100ah whatever these dorks do. But if you're getting batteries you may...

From some amazon review or Q/A for your fan model: "The fan will pull from 0.2 to 4.7 amps @12v, depending on the setting from 1 to 10. The middle setting pulls 1.1 amps, which is 13.2 watts per hour." So idunno, maybe estimate that you have a constant draw of 0.8a with the fan running nonstop...

Yeah, I thought you were asking about the company's batteries, so I linked their store - and the first 50 items are their LFP offerings. Didn't think you'd be asking about the Deligreen BMS...

Anyone used these? I didn't even know they existed until the other day. $140 for 300w of charging power, bluetooth monitoring ability, and has a lifepo4 preset (14.2 absorption, float/storage at 13.5) I don't know what to make of that blurb above and how much of it pertains to lifepo4, but...

Yeah I've been tempted by the BMS8t via jonyjoe but I couldn't find much information about it across the entire web. Would be great if you could post the parts you ordered to accompany it (relays and whatever) and show some pics when you get it all set up...

Cool build. Just ordered some new 195ah 3.2v LFP cells that seem to have good reviews from aliexpress because I still don't know how to alibaba. Seller responds in perfect english to every reviewer, capacity has checked out across multiple of their ah offerings from reviewers using the same...

I'd give thought to heat accumulating in the box, if you put the chargers in a box as you've mentioned. If Renogy has put the fans on the bottom of the unit, I'd cut holes in said box to match the fans and then bolt it up so it pushes air straight out. Shame. But no, that makes sense. I...

Wonder if that could cause a victron charge controller receiving voltage from the ve smart network to overcharge. That’d make one of my lfp cells go boom, even underreporting like 0.5v

Well, their batteries have bluetooth built in... so to that extent, yeah. I think they also have some products that only pair with their batteries (miniBMS) but I can't even understand their gear sprawl anymore. Ex: aren't the features of the miniBMS also built in to the battery anyway...

Victron has lifepo4 batteries for a couple hundred more than the BB, which might be cool I guess if you have any of their other gear. Check out this video. He's been finding some names I've never heard of and some test well (check out his other videos too, I think he's reviewed quite a few...

I wouldn't be surprised if the internals of that are very similar to the WKing one I have. Get ittt

Just finished rebuilding the pack tonight using new Valence 2500mah 26650 cells. The BMS may have disconnected originally (hence built in voltmeter off) when one cell group plummeted below the minimum. Why that group never recovered, and ate itself, is beyond me. The voltmeter did kick back...

Man.. I built a custom boom box in a huge Dewalt DS300 tool box with 8" polk sub. Enormous, heavy, powerful, and sounded like absolute ass. Not even worth it, what a stupid project that I spent way too much time in building, debugging, and with great futility - trying to salvage. I have a...