Gregb
100 W
I have just bought a used LiFepo4 battery from a friend and have opened it to find it appears to have some sort of BMS built in. It is a 26V 10AH.
I am trying to identify the BMS to see what it does. It looks far superior to the one that came with my original battery (same supplier) which was the dreaded AE-LMD17 which did not work due to abysmal construction.
This is about 6cm square and has a processor on board. Everything has been painted with something that hides all the markings. I have tried removing it to no avail. There are what could be 4 transistors or FETs It is double sided and of course has a lot of surface mount tiny components.
It has LT-PAO7 V1
2008.08.28
RoHS
printed on it. Has anyone come across this as I would like to know its capabilities, especially if it has a discharge function. It definitely has balance wires connected to it. It looks like I will have to wire in another plug as it's is a size smaller than my BVM-8s. PS the supplier is long gone and he wouldn't discuss the batteries when he was still in business. I don't think he had a clue anyway and just bought them from any chinese supplier he could. He kept telling me he was an ex navy electrical engineer but that is open to discussion......in my opinion.
the cells themselves are blue , 13 cm long and about the same diam as a d cell and have some printing I can't read
Thanks
Greg
PS the solderer is of the school that believes the more you put on a joint the better.....
PPS. It also has a 3 pin socket on it which may provide unused alarm/control points??
I am trying to identify the BMS to see what it does. It looks far superior to the one that came with my original battery (same supplier) which was the dreaded AE-LMD17 which did not work due to abysmal construction.
This is about 6cm square and has a processor on board. Everything has been painted with something that hides all the markings. I have tried removing it to no avail. There are what could be 4 transistors or FETs It is double sided and of course has a lot of surface mount tiny components.
It has LT-PAO7 V1
2008.08.28
RoHS
printed on it. Has anyone come across this as I would like to know its capabilities, especially if it has a discharge function. It definitely has balance wires connected to it. It looks like I will have to wire in another plug as it's is a size smaller than my BVM-8s. PS the supplier is long gone and he wouldn't discuss the batteries when he was still in business. I don't think he had a clue anyway and just bought them from any chinese supplier he could. He kept telling me he was an ex navy electrical engineer but that is open to discussion......in my opinion.
the cells themselves are blue , 13 cm long and about the same diam as a d cell and have some printing I can't read
Thanks
Greg
PS the solderer is of the school that believes the more you put on a joint the better.....
PPS. It also has a 3 pin socket on it which may provide unused alarm/control points??