DALY Smart BMS Li-ion 48V 13S 500A with UART Communication, Resetting Bluetooth Module,Common Port for Rated 3.7V Lithium Power Charge and Discahrge Protection(Smart BMS+RS485+CAN,500A Fan)

Works okay just will not let the battery charge to this full capacity shuts off around 52.4 instead of 54.6 other than that it works just fine. I tested all my cells and found that they where out of balance 1/2 of them where 3.8V and the 1/2 where 4V so I charged each set of 4p cells to 4.1v and then finished charging the back to 54.6 v throw the BMS. I am runing it now on my ebike win it gets down and needs charged I will test all the cells backe and see where they are and then if there all the same I will recharge it and see what happens.

It worked

Bought a cheap eBay 48 volt 20amp hour battery a couple years ago. When I went to charge it up recently I got nothing. No charging, no voltage. The BMS was shot. Swapped it out for this DALY BMS and now it works great!

I like most things about this BMS. It is safe, it handles 30a like stated, it is built like a tank. My only negative is it doesn't have an on off switch solder point. When I make a battery in Hailong or Polly cases, I like to have the built in switch funtionality.

I chose to not believe some of the bad reviews here, and ended up purchasing this BMS. What a mistake that was! My device never worked, and I wasted a lot of time on it: 1) the bluetooth UART worked inconsistently, and the app NEVER showed any data even when connected. 2) the USB UART worked inconsistently with the desktop application: it showed cell voltages, but would never allow settings to be changed 3) the BMS's contactors were always open: I could NOT charge or discharge the battery Customer support is completely non-helpful. They will tell you to try things that are not even applicable to this model. For example: - Support: "did you try activating it?" - Me: "the manual says you activate it by charging or discharging, but that's what's not working right now" I see that a lot of the reviews here are positive, but I also see that some reviews have similar situations to mine. If I had to guess, there is probably a high failure rate here, or maybe they are re-selling the known-defective returned units. Very disappointed.

Worker great

Many Daly BMS that I've bought on ebay of thru aliexpress don;t appear to be real. This one looks legit, and came really quick too. Now on it's 3rd charge cycle. It seems to be working well.

Liking the manufacturer. Very respectable.

já montei a minha bateria de 13s 10p. com celulas 18650 2.500ma 25a e ficou.show de bola com a bms de 60a....