Daly BMS gone crazy..Update Opinions
I was charging my 120ah lifepo4 battery yesterday and came in for lunch and saw it shut down..I figured it hit the 3.65 volt cell limit and shut down,I went out to check it and saw this on the Blueto...
Forum Discussion
Watched that again and noted:
He says 1280 in the audio but the print out says 1200 for the ad Wh. it is a typo-ignore.
He says each cell is 3.2 nominal volts and 3.4AH. I don't know where the 3.4 comes from or what other LFP cell AH are.
He gets 3.2v x 3.4AH = 10.88 Wh per cell, he counts 120 cells NOT 120AH!!!
he then gets 10.88 x 120 = 1305.6 Wh as the capacity.
3.2v x 4 = 12.8v nominal and 1305.6/ 12.8 = 102AH
And going back, 30 cells per pack x 3.4AH = 102AH per pack and there are 4 packs in parallel he said (meant series I think) or was that the 30 in a pack in parallel? Fast talker!
He never said the battery is 120AH. He uses 3.2 v for the capacity which is the "nominal voltage", not the voltage of the battery when full, which is 13.6v according to BB itself.
He says 1280 in the audio but the print out says 1200 for the ad Wh. it is a typo-ignore.
He says each cell is 3.2 nominal volts and 3.4AH. I don't know where the 3.4 comes from or what other LFP cell AH are.
He gets 3.2v x 3.4AH = 10.88 Wh per cell, he counts 120 cells NOT 120AH!!!
he then gets 10.88 x 120 = 1305.6 Wh as the capacity.
3.2v x 4 = 12.8v nominal and 1305.6/ 12.8 = 102AH
And going back, 30 cells per pack x 3.4AH = 102AH per pack and there are 4 packs in parallel he said (meant series I think) or was that the 30 in a pack in parallel? Fast talker!
He never said the battery is 120AH. He uses 3.2 v for the capacity which is the "nominal voltage", not the voltage of the battery when full, which is 13.6v according to BB itself.
