daier2Pcs 3S 11.1V 12.6V 25A W/Balance 18650 Li ion Lithium Battery PCB Protection Board

Hey, so there is a complete lack of any instructions and the layout of the board is reverse from some of the more common ones I've got from Wish. Hooked up a small pack to it for testing.- outputs 12.6V like it says on the tin.Hooked it up to an inverter and applied about 150W draw. It cut out in about 10 minutes. I measured the Voltage at the leads coming from the BMS and got 10.36V under load. Cut the load and voltage went back up to 12.5.Checked my cells and they had dropped from 4.25V to 3.5V or 3.6V.Not sure if its cutting off the cells to protect them from over discharge and its just happening early or if the BMS is tripping early at about 13Amps... My 18650s are rated for 5A continuous discharge so with 6 in a 3s configuration I should be within spec. Will continue testing and post full charging and discharging results on youtube.

Piece of crap, the manufacturer should of tested the product before selling it on amazon. The product outputs no voltage so it never worked, got a new one and receved a DOA again. Will only buy as a risk if this is the last resort. Plus it is a fire hazard because one of the ones I received had a faulty chip that would heat up intensely and almost start big fire since it is placed on top of 3s5p (15cell) battery.

Order a pack of 2 and got one with a bad trace.. Sent it back and bought another pack that was perfect condition. Works well.. Balancing cells is a bit off but not too bad

Absolutely horrible product lolClearly no testing is done on these and they're sent out in mass amount likely causing fires in peoples homes.Tried the first one, it showed 1v+ less on all the BMS terminals/leads , obviously the cells were showing full voltage as I just charged them..Output voltage was showing me 9v or so.Tried the second one and it fired up right away. However I'm skeptical it's going to stop at lvc and hvc lol .Avoid the product entirely, it's not worth dealing with unless you know exactly what your doing , could be super dangerous and shouldn't be for sale on Amazon tbh.Aliexpress is good for quality pieces but they take awhile unless your willing to pay for $$ shipping

My new battery where smoking during my second charge looks like transistors were alredy broken during shiping or not tested prior. Considering the price of one single 18650 more expensive than this bord that kill it first charge ... Shop further and look fore a réal ballancing circuit.. I know most are not realy able to balance safely but if you do as I did then you are wasting your money. Finaly I don't think this design or arangment can do what they say for this price look insted for parralle 4.2volts charging then step it up for your need this methode grant you a similar low price but then my crurent need was 4amp.