Join Date: Feb 2010
Location: Southern California
Bikes: Self-constructed electric bike from a kit.
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Thanks nwmtnbkr for the inputs. I did take a look at the TS packs and the solutions from EPS. The packaging is attractive, but the discharge current is only 2C. I was looking for a high rate discharge cell, and the one I selected (actually made by Headway I believe) is rated at 50A (5C) continuous, 100A peak. The BMS is provided with the battery, and specs from the mfgr (Beyondpower) show it to be capable of providing up to 60A. My controller is a 48V40A Crystalyte controller, so it should be adequate. The hub motor is Crystalyte 5305, which will handle the power. As for the cost, the BMS is included with the battery for a Total of $559. I don't believe the EPS TS packs also include the BMS for the $480 price. Buying from Arizona would eliminate taxes, which are $54.50, with S&H at $17.50. My goal is a cylindrical high power cell with a long cycle life, and as stated, I have already purchased the battery and BMS.
I am still looking for a good 10Amp charger, and if possible, individual battery-balancing PCM's I can attach for better balancing of individual cells, similar to the ones from EPS. I would have to get the battery from EPS to use theirs however.