I run 4 of the 100Ah weize batteries 1 10Ah and 1 20Ah batteries from them. So far so good on all 6 batteries. They sell versions in 10ah, 12ah, 18, 20, 55ah, 100ah, AND NOW also 200ah as well! If you buy on Amazon they are sold by Powermall and BLT HARD and now XI Run. These are all the same company. I guess they just have 3 accounts because Amazon loves suspending companies on their platform for no good reason, or if Amazon decides you're cutting into their similar product. So that's not a red flag for me, but if anyone else knows of a better reason why 1 company in China would actually be a bunch of different ones feel free to chime in. Maybe that gets them over some sort of Amazon limitation, or so they get paid more spread out instead of all sales every 2 weeks like how amazon pays. Either way, they are legit so moving on.
I accidentally shorted the battery once and it was fine it protected itself and nothing happened.
I also went with Weize due to Will's cheapo review. Well, $399 isnt really that cheap for anything but I guess for LiFePo4 it is (for now) Their customer service was very responsive when I contacted them, but it was just for asking when they would have stock again, not a technical issue. I bought 1 battery to test and before buying the 3 more needed BAM they went out of stock for a month. They got back to me fast, I had a follow-up question, which they also got back to me fast on again and then they even emailed me 2 weeks later to let me know that they were back In stock so perfect customer service for what I needed. There is an 800 # and email in the manual also if you want it let me know. But they respond on Amazon for sure.
SOK and Battle Born were not in my price range. My needs are basically just a backup generator. Not using it daily. Although I have had my rig running for over 2 months so maybe I will be a daily.
For my price range, it was either Chins, Ampere Time, or Weize. Weize seemed to be a hair better from watching wills videos and honestly I like the colors better and the logos looked more appealing for Americans. They took the time to make a cool logo so I assumed they maybe did that with internals also. Lol.
Things to note that I found out after.
You can only combine up to a total of 4 batteries max. So whether you need parallel/series the manual states 4 is the max so 400Ah is it. The 4 max limit I think is relatively common but I am not sure if other batteries allow you to connect more with a load balancer or something. My cabinet would allow me to hold a total of 6 batteries and reading that 4 max limit immediately made me want to try 5 or 6. Soooo yeah that might happen sometime in the future, haven't decided yet. My plan was for 4 total but as soon as I read I can't do more my mind went to bad places. I believe many manufacturers say the same, I haven't looked into why yet. Prob a balancing issue, but probably some workarounds.
Also note charge voltage for 1 battery is 14.4v if you have 2-4 batteries connected then the standard charge voltage should be set to 14.6. I didn't know that so for the first month or so my controller was set to 14.4. My guess is the extra .2v is to help balance all the cells but idk that's just my guess. It did just fine at 14.4 but now it's set to 14.6 and also doing just fine. Maybe I wasn't getting 100% before but like 95% or something like that.
Conclusion:
I have had a good experience so far with Weize, it's a purdy blue and grey color, the price is $399, (yes, once upon a time it was $349 for just 1 week back in Oct 2021) so it's just a hair over chins but far less than the crazy high prices out there. If I have any issues that come up I will be sure to update. I will also attach a photo or 2 from the manual.
Weize is on the right track and I'd love to see them become a big player in the market. Cheap batteries with good construction, no lies, no scams, no games and well-thought-out internal materials. Hope that helps.