I watched that video and tried to find the promised followup but he rambles so much I cant even figure out what his actual problem is with the battery. He's got wires and cables running everywhere, camera is jerky, hard to follow. He also promotes power queen in all these videos which he mentiones that he uses paid referral links for them and then he insinuates that "professional" youtubers (I guess he's referring to Will) are somehow only recommending products that they get paid for. Isn't that the pot calling the kettle black? He's playing on peoples desire to find a "secret" that the "professionals" don't want you to know. He implies that most everyone else is corrupted and he's the one telling the truth. It's classic conspiracy thinking and unfortunately that content seems to get lots of viewers on youtube, but he's not my cup of tea. If it has a 100A BMS and it cant put out 100A, send it back, it's defective. Otherwise, I'm confused what his problem with the battery is. He doesn't think CHINS should sell a 200Ah battery with a 100A BMS? It's clearly labeled that it's a 100A BMS and they also sell one with a 200A BMS if you need that. Some people might not need 200A output...Honestly I cant figure out why he doesn't think that's OK.
I agree if it can't put out 100A continuously then it's not meeting it's spec, but I looked through that video again and I don't see him test the maximum output current at all. Where does it fail to put out 50A? I think we would have seen a problem in the reviews if it couldn't put out 50A. That's only a 640W load, surely people have tested these with inverters that draw more than that. I don't have one or I would check. As far as them sending good ones to reviewers and bad ones to everyone else, sure that's possible but I think all the people who got duds would be leaving bad reviews and there are over 1000 reviews on amazon and only 7% are 3 stars or less. Also there are probably lots of smaller youtubers like him (or people in this forum) that just ordered regular units for their tests, it wouldn't have been just him that noticed if it couldn't put out 50A. I think everything the guy says is possible but just not likely. Extraordinary claims require extraordinary evidence to convince me. What seems more likely to me is that he just got a dud and he should return it or that there was a problem in how he was measuring the 50A. Maybe I'm just a skeptical person.
Thank you for doing this. My whole wish were to warn people about this company. Perhaps others exist that are honest but not this one. In the process i felt like i turned into an evil person. They forced me do this. They talk really nice (they call you ‘friend’ so often) until they complete the transaction. But what you did was so nice. Thank you again.
What would happen if you ran more then 4 in parallel? I'm always confused when BMS's state they have a parallel limit, I understand having series limits due to bms voltage limits however.
I wouldn't expect this to be a fraud, possibly some sort of mixup but considering the previous reviews and happy customers it seems to be reputable. Although, I find it hilarious that it was signed by "FFRAUD" ?
Ordered (4) of these last night and the discount code worked fine as long as you made each of the purchases as a new order.
Its really pretty easy. Put it in a freezer for long enough to get cold all the way through. I'd say at least 8 hrs. Then immediately try to charge it with a low charge current (around 1A or less is fine). If it allows current to flow in, then it doesn't have protection.
Often solar charge controllers have temperature sensors as well and can limit charging below freezing temperatures. As long at the temperature sensor can be stuck to the batteries, it should work fine. In an RV situation though you might also charge from shore power or the alternator so you would need to deal with those situations.
