mickyd
10 W
Got a FREE Craigslist triangle battery, 13S8P (104 cell). The owner indicated it was getting a bit tired but still had life in it. Cells are Dynabat MX18650-26P, 3.6V, 2600 mAH, 9.36 Wh.
Cell spec sheet pdf file - https://drive.google.com/file/d/1Y744v5nayKX0M1GqN49DiZ70qXpBICfC/view?usp=sharing
Battery came with a 54.6V 3A cooling fan charger. Charged it until the green light came on at which point, the charger automatically shut off.
Don't have any BMS specifics since it has foam cushion glued over its label and can't remove it without boogering up the label.
Put the beast on my wife's Trike which has a generic Amazon 1000W front hub motor / independent controller. Took it for a slow paced flat test ride to see what it's range would be (which turned out to be about 10 miles). Plan was to drain it to the point of obvious reduced power. I started feeling a slight power reduction / fluctuating lag as with my other e-bikes, then the power cut off instantaneously.
So, my question is...what caused the power to cut off instantly?
NOTE: The voltage of the entire pack after 1 hour cool down was 47.35V with the following voltages from adjacent BMS plug wire connectors. The number in (-0.xx) is the difference from the HIGHEST series pack.
1- 3.66(-0.04) BLACK LEAD
2- 3.57 (-0.13)
3- 3.68 (-0.02)
4- 3.70 (0.00) HIGHEST PACK
5- 3.64 (-0.06)
6- 3.67 (-0.03)
7- 3.44 (-0.16) LOWEST PACK
8- 3.67 (-0.03)
9- 3.65 (-0.05)
10- 3.66 (-0.04)
11- 3.69 (-0.01)
12- 3.68 (-0.02)
13- 3.64 (-0.06) RED LEAD
Total voltage = 47.35V
Cell spec sheet pdf file - https://drive.google.com/file/d/1Y744v5nayKX0M1GqN49DiZ70qXpBICfC/view?usp=sharing
Battery came with a 54.6V 3A cooling fan charger. Charged it until the green light came on at which point, the charger automatically shut off.
Don't have any BMS specifics since it has foam cushion glued over its label and can't remove it without boogering up the label.
Put the beast on my wife's Trike which has a generic Amazon 1000W front hub motor / independent controller. Took it for a slow paced flat test ride to see what it's range would be (which turned out to be about 10 miles). Plan was to drain it to the point of obvious reduced power. I started feeling a slight power reduction / fluctuating lag as with my other e-bikes, then the power cut off instantaneously.
So, my question is...what caused the power to cut off instantly?
NOTE: The voltage of the entire pack after 1 hour cool down was 47.35V with the following voltages from adjacent BMS plug wire connectors. The number in (-0.xx) is the difference from the HIGHEST series pack.
1- 3.66(-0.04) BLACK LEAD
2- 3.57 (-0.13)
3- 3.68 (-0.02)
4- 3.70 (0.00) HIGHEST PACK
5- 3.64 (-0.06)
6- 3.67 (-0.03)
7- 3.44 (-0.16) LOWEST PACK
8- 3.67 (-0.03)
9- 3.65 (-0.05)
10- 3.66 (-0.04)
11- 3.69 (-0.01)
12- 3.68 (-0.02)
13- 3.64 (-0.06) RED LEAD
Total voltage = 47.35V