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Sorry. :(

Your batteries are most likely bad. I wrote reviews on here about it. Same thing happened to mine. Opened them up and they are completely junk.

You should have read my reviews on here, before you purchased. They are a complete scam company.

That's my guess... I am now repairing 3 of the 6 I purchased by putting in new junk pouch cells for the ones that are damaged. The plan is to only use about 70-80% of the capacity to try to get a little more time out of them. It seemed like a better idea to fix them than purchasing all new cells...

I'm so happy you avoided this train wreck of a company... They baited and switched me and they won't respond. I lost over 6k

Who is this, and if he's so happy, why is he having to take apart his batteries? Maybe he didn't get screwed with pouch cells. I'd like to know more about his experience. I was happy also for a few months.

Yep, I won't do this again. I DIY'd some, and bought some... DIY is the only way from now on.

I do have replacements that I had to buy on my own because TaicoPower is worthless. If you didn't read my posts, it's TaicoPower in China and they will not help me with anything. They are a scam company. I thought they had a good reputation, but apparently, they are fooling a lot of people...

Please take a look at my previous posts about Taicopower. I hope nobody ever buys anything from them, especially after seeing this. I got majorly scammed, and they are absolutely no help at all... They've basically told me to kick rocks. These cells are hindering the rest of the pack to around...

I am finally getting around to replacing these cheapo pouch cells... what a mess!

Yep, I may just rewire it with an additional 20Ah battery in parallel with the weak cell...

China? Warranty? lol

I said inverter above when I meant to type BMS... The BMS just won't start back up after it shuts down the battery. I Fixed my post above. Meant to say: My main problem is that my BMS keeps freaking out and shutting OFF and locking out each time I have a cell over-voltage trip. If it stops...

I have 7 batteries in parallel. 1 shuts down, it's ok with me, the other 6 keep charging. My problem is that the one that used to shut down early, used to pick right back up once they started to discharge and all was well. Now, all of a sudden, the BMS just locks out and it won't turn back on...

Thanks for replying. It runs off at the top and the bottom. It's just a weak cell. I've tried many things. My main problem is that my BMS keeps freaking out and shutting OFF and locking out each time I have a cell over-voltage trip. If it stops charging a little early, I'm ok with that, but...

Yes, that's the garbage they sent after the site shows prismatic cells and they sent me additional literature also showing pictures of the prismatic cells. Tell the world... TAICOPOWER.

TAICOPOWER

Wow!!! That's way too close! Will and also Andy from the Off Grid Garage say 3.65 max, but I know this is a topic for debate. Once it gets to 3.65v there is only about 1% left to the top of the tank anyway, so I'd rather not risk it any further. 4.2v is only a hair away from 3.9v when charging...

It has passive balancing, but not strong... so I added an active balancer and I have it turn on at about 55v on my other packs, but this one is so weak, the whole thing triggers the 1 high cell and shuts down before it gets to 55v so it doesn't do anything. I set it to 54.5v, but it still...

I'm sure it doesn't help that the bad cell has been hitting 3.8v every day for 8 months also... That was the setting they had in the BMS! Trash company.

Good thoughts. I've thought the same, but I'd have to stop the charge cycle much sooner to keep from shutdown at top, then watch my usage more carefully to stop it from hitting the bottom as well. I was hoping to just have the BMS do that for me, but now it's locking and is unusable from time to...

I have definitely thought about all of this. I even think I may try to add a 20Ah cell in parallel with the 1 weak cell. I know the cell resistance would be way off, but I wonder if I could get away with that? I was going to bleed the top cell, but it runs off at the bottom as well and is the...

@sunshine_eggo Here's today's latest data. I just grabbed the latest bit due to time. Sorry the date and time are wrong in the battery, but I downloaded today's activity just up until it filled and shut down. I can post a lot more later when I have time, but this shows the cell running off and...

Growatt 5000es will not charge at all unless it's >56v. I was thinking of buying a power supply to set it at 55.2v for a while and allow it to equalize for a longer period of time.

Yes, but this doesn't happen if I catch it early enough.

No it's the junk Taicopower that I posted about a little while back.

I'll go grab it.

I think it's a bug. I was wondering if modifying the cell release voltage would help. Maybe if I make the release a bit higher? They are Taicopower... They are garbage. I posted about them here a little while back. They lied about everything and the BMS is their own design, and it is also...

I have 6 server rack-style batteries. 2 of them have a weak cell and the 1 cell trips the BMS charge MOSFET every day before it reaches full, so there is still charge potential left on the table for the overall pack. Once the charge MOSFETs shut down in those 2 packs, they don't turn back on...

I have 6 server rack style batteries. 2 of them have a weak cell and the 1 cell trips the charge MOSFET every day before it reaches full. My charge MOSFETs shut down due to that high cell, then it never turns back on while all other batteries fill and then work normally. I have to reset the BMS...

Anyone?

First, I understand why it shuts down. I know all of the risk. I use a Lead Acid bank of Trojan Golf Cart Batteries at times, but not all the time. Let's stay out of the details for now. I just need help with a simple question. Can you turn off the over charge shutdown that happens at 60.8v in...

I have Bluetooth working great with UART, and I wanted to add the LCD screen with RS485, but it just isn't receiving connection. Has anyone had this same error?

Yes, and I did all of these things and all of my questions were answered. I was told they were Grade A prismatic cells made in 2021 when I purchased them. I was told they were a top 3 manufacturer, but that they used any of the top 3 as supply needs arise, but guaranteed they would last 6000...

That's a good response... For the record, I did do as much research as I could at the time by discussing with other local Chinese vendors that friends had done business with previously. Others there said they had been there a long time. Everything seemed to check out, and their communication was...