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Set your charger to 50.8V bulk, absorb and float and set LVCO for 44.8V. Make sure you're not charging with more than 50A per battery. That is what was recommended to me by BB. You can try floating lower. If the cells are out of balance the BMS balancing is very slow and floating at 48.7...

If the voltage on the display is jumping around during charging it sounds like the cell(s) are out of balance. I had a similar issue though the battery would charge to a point. It would hit the high voltage cutoff early as a result, and many of the cells were left uncharged. I had tried doing...

We've had a cold snap come through this week. Got down to -10F and -5F the past two nights. I woke up to check the equipment in the shed and saw the PT-100 had F02 fault on cold night 1, and last night was F08 fault. Both times it recovered by following the instructions in the manual to reset...

LFP batteries will charge with any current coming into them. My 48v LFP batteries ran in parallel can accept 1-100A current with suggested charge current of 50A though I believe the C rate is a bit higher running them in parallel. With 3 batteries in the bank they generally don't see more than...

I was able to get 2 Llama's warrantied. One seemed to have been out of balance and the other had an issue with BMS overheating to the point of smoking. It took about 5 weeks to get the repaired batteries back. I charged each battery up to 50.3v and hooked them up in parallel with my one...

Our starlink has been hooked up to a kill-a-watt since we got it. Its a gen 2 model with a rectangle dish. It has been in temps as low as 0F and had 6" of snow on it. An average power draw of 67.22w. This power supplies a heater, dish, and Wi-Fi router. Ive not checked the draw on a...

I received my returned Llamas from big battery last week. I unboxed them yesterday. Both batteries look in good condition. These appear to be the batteries I sent back as one of the small phillips screws are still stripped in the head like when I returned it. The batteries have labels and...

I was getting between 0.5Mbit and 6Mbit using my phone and a cellular booster (4-5 bars), without a booster it's closer to 0-2 bars). Connectivity depends on where you live and what sort of signals are available. At our elevation, line of sight to towers is non-existent so we're just skimming...

We are online today with starlink. If you can afford it, I also suggest to put in your deposit. It took us 8 months and I hear it's first come first served. Random speed test result of 256Mbit down, 43Mbit up, latency 22ms, jitter 8ms We live in a canyon with no overhead obstructions. I...

Ever since I started emailing BB through my non yahoo email account I've been getting better correspondence. Both batteries were carefully packaged up and secured on a pallet. Pickup was scheduled for this past Monday but they didnt get picked up until Thursday (due to our location and the...

Finally getting the ball rolling on RMA for my 2 batteries. Communication has been difficult but helpful when it happens. They require me to re-box the batteries and ratchet tie them to a pallet. They arrange the freight pickup which I have to pay, they do the repair and replacement and pay...

Ive not discharged the one battery down that low but I did discharge all 3 in parallel to 43.0V at one point as they had that voltage recommended on the parameter sheet online when the batteries were bought. Now they have it listed at 44.8V for 80% DoD. I have no doubt this 1 Llama is within...

I should have stated that the 44.8v, I have set in my charger/inverter (LBCO), not from the BMS. I misspoke with LVCO.

No idea whats going on with your battery, sounds like weak cells or out of balance?. I have 1 of 3 that's close to spec. 44.8v cutoff gave me 91AH discharge It has a bit of weird activity when it gets to the top of charge but eventually balances out and tapers the current as it should...

The battery spec sheet should provide the temp range for charging. You can also consider insulating the batteries to keep them more on the warmer side as 35F is getting cold for charging some chemistries.

I received a call from BB today and they were very helpful. Battery #3 seems to be working well for us. Ive discharged it at least 70% and the AH recovered hasn't been less than 1AH off. They had me adjust my charge voltage to 50.4V and LVCO for 44.8V. Ive been instructed not to charge these...

The LVCO happened around 3AM this morning, BMK reported -60 AH. Solar began charging the battery. It was jumping voltage quite sporadically 44.3-49V. It accepted about 10AH and then hit over voltage 52V+ and settled back into 51.0V. BMK showed -49AH with the battery full. After turning the...

Thanks for your reply. That sounds very likely. I can't unfortunately. It would likely require me to open the battery and I believe that would cause warranty issues. Do you think it may balance out during discharge? The 14S pack is now at 44.8V discharging at 8A

I seem to have the odd scenarios. For the past month we've been running on 2pc Llama's. I've seen the BMK show up to 160AH discharge between them overnight. The weird voltage jumping continues and the BMK AH meter never gets back to 0, sometimes it will cap out at -30AH sometimes -12AH. This...

Between my inverter, parallel box and the battery terminals I have a 0.2V difference. In order to hit 51.0V on the battery I need 51.2V absorb at the SCC. The parallel box, in-between the batteries and SCC reads 51.1V. Maybe you're seeing voltage drop between the battery and SCC?

I was arguing in favor of a generator and didn't convince you, that's fine. I hope you find what works best for you! GL in your future shows and I am sure the neighbors on-site will appreciate the less noise.

I would say a good inverter generator is probably the best bet. Our blower requires 20A service when both motors are running. Not sure what the draw is on batteries would be but I'd imagine you would need a nice inverter and some battery weight, or cost if you use LFP. For just occasional...

Any thoughts? Sorry to bump but weirdness begs question.

I am having a heck of a time with my bigbattery Llama's. Originally I had 3pc. They are oddball 14S batteries and charge to 51V. One of the batteries I have has a problem that bigbattery has said will be replaced after I ship it to them. There seems to be a problem causing the BMS to heat up...

I've been watching my battery bank voltage along with my battery monitor kit which seems to be a good judge of +/- AH. I reset my AH meter at full charge yesterday and now my 345 AH bank is down 110AH and showing 46.0V (my 14S configuration is fully charged at 51.0V). According to the voltage...

They sell a cable to series connect them. I would contact them first to make sure https://bigbattery.com/products/sb175-series-cable/

I just requested an RMA on my battery. It would have been nice to have the top section only sent out but frankly I'm not 100% certain that's the issue (or only issue?). They said I need to ship it back via Freight, which I expect will take a week or so to get there, then they told me they will...

One of mine is for certain defective. Today I caught a glimpse of some smoke coming from the BMS. Not quite fast enough to get the smoke on video for their tech support. Worst smell in the world! Still waiting on a reply from tech support for the next steps. Support is slow unfortunately...

On my Magnum PT100 (MPPT) SCC it always pushes a lot more amps than my PV array puts out. I was confused about this in the beginning as I had a breaker trip at about 70A reading on the PT100. After a lot of testing (DC clamp meter on all strings and then on the home run at the PV combiner and...

We thought about getting a turbine for supplemental energy after the sun goes down. We decided that if we added more solar panels it was a better benefit over the course of the day. We may still visit that but around here the winds are not as consistent as other areas due to our topography. I...

Yes I have mine connected up to the bigbattery.com parallel box. The LED display seems to be a better measurement of amperage in or out from the parallel bank. They play well together however as I mentioned, one of the batteries BMS gets extremely hot and this particular battery usually is...

My batteries will have a voltage of roughly 46.5 when in the middle of SOC. 43-44v still has a little juice though Ive not discharged below 43v, it starts tapering off fast below 44v. 49.6 to 46.5v is a relatively fast discharge. 46.5 to 44.0? is the plateau. 44 to 43v is relatively fast...

I have three of these batteries in my off grid shed. They are 14S batteries and have different charge settings than 16S batteries. I charge mine to 49.6 volts and have low volt cutout at 43v. They are working fine but one of the three gets very warm. Tech support had me remove the lid to see...

Am I blind or does it seem like the ruling class opt's for fancy yards instead of solar arrays? Have you ever seen a picture of member of the ruling classes property? No wind generators or solar arrays. I was shocked to see President Obama's home (very beautiful BTW). It looks like a power...

Do you have the magnum remote me-rc or me-arc?