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They also sent me replacements when some of mine were damaged, but the replacements were also damaged! They use insufficient packing to ship these cells - very thin cardboard. In my case a lot of the boxes had holes on the top where the welded terminal screws had punched through. A lot of my...

Ever get the datalogger figured out? This thing is ridiculous. I can get it to connect and in some parts of the app it says it's connected but doesn't give any data. Then when I check online it says the datalogger is "discharged". What the heck does that mean???

Yeah, my concern with plywood is that it's flammable. Not that it should be getting hot enough to start a fire, but I've had some close calls before with some faulty fuses (always use a UL rated fuse). My concern with using metal is having some kind of accidental contact with the metal and the...

Mine were damaged, but didn't seem swollen. I'm using ratchet straps for compression to keep them from swelling. What are others using? Think ratchet straps will work ok?

Gina Zhang

Update: So far Exliporc is being helpful and is replacing the missing cells and the damaged cells. They say the replacements should get to me next week or soon after, so I appreciate the speed with which they are moving and the fact that they haven't tried to avoid sending replacements.

My cells finally arrived, all except one box. So I'm missing 4 cells. To their credit Exliporc has agreed to overnight me 4 new ones. But I just discovered last night that 4 of the cells are damaged. Generally the cells have tested at proper voltage and seem well made, but 4 are dented...

The solution I eventually came up with was the Chargery BMS, with their newish 600 amp DC Contactor. Given my 48v 560 AH battery, this gives me 240 x 120v AC amps, and closely matches the surge capacity of my inverter, and a 1C rating of my battery. Should be able to run several mini split ACs...

I'm getting extremely impatient. Ordered my 32 REPT cells from Exliporc on April 5, 2021. They shipped late but Exliporc told me they arrived in port June 5 and would take about a week to clear customs. Then a week later she told me it's cleared customs but just waiting for UPS to pick it up...

Yeah, it's a weird power connection. Used to charge off 120v power. The charger that came with it showed up broken anyway. But never really intended to use it. Not much a use case for me to charge my battery with a 120v charger when I'm using the battery for my 120v power. Power button only...

The white plastic is a spray foam. It is thick in some areas and can be tough to get through, but fortunately the battery is wrapped in a heat resistant tape, so the spray foam breaks off when you remove that tape. I used an oscillating saw to cut the case open and it also came in handy for...

Yeah, I wish I had all this information before I bought it. I may have actually still bought it, given its low price in comparison to some other brands, but great to be informed. I'm mostly disappointed with how they attach the wires to the terminals. That was my point of failure. Also...

Wow that's a mess and hard to understand. They need to start rating batteries by watt hours, and standardizing discharge rates.

Hard to see from this photo, but the red wires connection is peeling up. The wires are soldered to a small piece of sheet metal, and then that sheet metal is laser welded at the top and bottom edges to the terminal. Nothing connects the rest of the bottom of that sheet metal to the terminal, so...

I opened up the battery so I could see the posts and found that the main wires had been basically taped on. One of the positive wires was falling off. I soldered it to the terminal for a short term fix, but can solder handle Temps caused by up to 320 amps? Is there a better way to attach this to...

Good idea. I'll try that tonight and see how it reads without the BMS connected. I tested the voltages direct from the PCB board on metal pieces coming out of the wiring harness of the lead wires. But I'll disconnect it and test the wires direct.

Thanks for the documentation. It's a little confusing. The Amazon page advertised 1C capability, so I've assumed 1C charge and discharge. The Charge Mode says to charge at 0.2C5A, which to me means .2*5, or 1C. Am I interpreting that right? But then it goes on to say Maximum Charge Current 100A...

You think a bad cell could lead to fluctuating voltages? The reason I think it could be the BMS is because the voltages on the other balance leads are constant and roughly what they should be. My thought is that the BMS is pushing a wild balance charge on that one wire. Perhaps my inverter is...

I opened mine. The seller showed me how in response to a warranty request I have pending. Battery worked well for me for the first few months, but I'm not sure it achieved its rated capacity, and it failed after 3 months of use. See my post here...

The battery seems to be of decent build quality. Good solder connections, but probably uses grade B cells, and cheap BMSs. One concern I have after opening it, is that the seller told me it is made up of 80AH cells. I count 12 cells total, with 3 12v packs in parallel. That would only equal...

I submitted a warranty claim and, to their credit, the seller promptly responded and offered to send me parts to fix it. The seller told me to open the battery and to check the cell voltages and BMS. Trying to figure out if the problem is with a cell, or with the BMS. The tops of the cells were...

I haven't bought one yet, but when I do I plan to get it from Missouri Wind and Solar. The controller was more difficult to source. You can get one from Missouri Wind and Solar, but the only one they sell for Lithium batteries costs more than $2k. That's more than double the cost of the turbine...

Nice. That makes sense that most of the current would be taking place across the series connections. Nice solution.

One consideration I've been made aware of here, if planning to draw that many amps, is the weak spot will be your bus bars. Granted, the bus bars will be short, so should be able to handle a large load, but I have a Blue Sea 250 Amp bus bar and it's a quarter inch thick. That bus bar is 4 times...

Bummer. If a seller could figure out a way to even do 2 week delivery on these I think there'd be a lot of demand. One of the most difficult things about solar and batteries is that some products can only be had from China which requires long delivery times. It's a pain.

Well, I could be mistaken, actually, if they are developing a truly new version. Mine looks just like the one Will reviewed, but it has been pre-calibrated, has low-temp disconnect, and uses the new solid state relay from Chargery. So the relay is new, but the BMS itself has just received...

I have one. Haven't hooked it up yet - still waiting for my cells - but I've received mine, so I believe they've been released.

I'd be curious to know your opinion on the updated Chargery. I think they've addressed a lot of your concerns. It comes pre-calibrated from chargerystore.com, and the DCC solid state relays seem to work well. For situations that need high C rate discharge and charge this setup seems ideal.

My Inteli-Power charger starts at full amps (60 amps) and then tapers down to about 5 amps within about 1 minute of charging. So apparently it thinks the battery is fully charged. I have an Ammeter which I've programmed at 320AH, but I can't get it to read over 270AH now. I used to be able to...

I've been using a 320 AH Scream Power LIFEPO4 battery for a few months now. Been fine until this past week. For some reason my chargers will quickly charge it up to 14.4-14.5 volts but the the chargers shut off and the battery voltage quickly falls to 13.1-13.2 volts. Is this normal, or should...

Wow. Wish I would have received that sort of treatment.

Yes

My cells have been sent out and I received photos. They look like good cells. Good terminals with screws, qr codes, etc. They are all labeled with voltage and resistance. Packaging looks good. So I'm happy. Can't wait to receive them and do a further review. The 310AH cells someone else wrote...

I don't have an official parts list. But what I've listed in my post is the bulk of it. The SS relay is something that the Chargery BMS uses to shut off charging and discharging. I decided to go that route so my BMS doesn't limit the number of amps I can draw from the battery. For an RV setup I...

I'm now told that they shipped out the wrong cells to me. To be fair they said they are mailing the correct cells today, AND they did finally send me the photos of my packaged cells, and of one of the cells labeled. But since they were the wrong cells I am expecting new photos soon. I am happy...