Hi Guys
Great work!! just brilliant!! I am so pleased that you guys have got this off the ground, exiting times indeed!! some of the Chinese BMS systems that I have seen have been poorly implemented and badly made, its great to see this on here, does the BMS offer any short circuit protection? or are you just using fuses?
Series connection was indeed a problem on the stock Point-1 packs and Bob you are quite right those BMS boards used 55V fets and if they disconnected under series load they would often fry, both me and Jozzer replaced the stock fets for 100V fets on twin packs and it isn't a problem any more, the BMS does warm up a little under load.
I think that you are on to a winner with these packs fellas, most of the Chinese batteries that I have stripped have been very poorly made and they either lasted for a reasonable amount of time or failed very quickly, I cant vouch for your cells and time will tell how they preform, however I think poor construction and bad BMS design was the Achilles heel for a lot of the Chinese packs and not the cells themselves.
Looking forward to seeing some board photos and pack pictures, these things should fly off the shelves guys! I wish you all the best with them.
Knoxie
Great work!! just brilliant!! I am so pleased that you guys have got this off the ground, exiting times indeed!! some of the Chinese BMS systems that I have seen have been poorly implemented and badly made, its great to see this on here, does the BMS offer any short circuit protection? or are you just using fuses?
Series connection was indeed a problem on the stock Point-1 packs and Bob you are quite right those BMS boards used 55V fets and if they disconnected under series load they would often fry, both me and Jozzer replaced the stock fets for 100V fets on twin packs and it isn't a problem any more, the BMS does warm up a little under load.
I think that you are on to a winner with these packs fellas, most of the Chinese batteries that I have stripped have been very poorly made and they either lasted for a reasonable amount of time or failed very quickly, I cant vouch for your cells and time will tell how they preform, however I think poor construction and bad BMS design was the Achilles heel for a lot of the Chinese packs and not the cells themselves.
Looking forward to seeing some board photos and pack pictures, these things should fly off the shelves guys! I wish you all the best with them.
Knoxie