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1st BBS02 build - Battery Choice. More Volts or More Ah

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    1st BBS02 build - Battery Choice. More Volts or More Ah

    Using 20+ year old Trek 7100 hybrid, 700 x 32 tires. Bike and me weigh 220lb. Using bike for exercise, 20 miles, 2 times a week. Mostly flat with few minor hills. 40+ miles, 1 time a week. I ride a road bike and can do 40+ miles; my pedaling with eBike is no problem.

    BBS02 750W kit battery choice:
    Dolphin 52V 11.6Ah ( Samsung 29E, 18650 cells )
    Jumbo Shark 48V 17.5 Ah ( Samsung 35E, 18650 cells) $100 more than Dolphin.

    From the battery info on https://www.juicedbikes.com/pages/52...tery-packs-faq, with pedaling at 20 mph, 52V 13.0 Ah and 48V 12.8 Ah battery with same Ah goes the same distance (39 vs 38)

    https://www.bafangusadirect.com/Articles.asp?ID=265

    Analyzing the whole table, my rough estimate is 1.0 Ah gives 4 miles more.The difference between the 2 batteries is ~6 Ah. The 48V battery would get 24 miles more.

    But the articles also says during ride discharge, the 48V battery will be less effective than a 52V ride discharge.

    What do you think? Buy the 48V battery ?
    Last edited by qqx135; 05-30-2019, 10:53 AM.

    #2
    The difference between two is of power and performance. From my point of view 52V ebike battery delivers more power and efficiency

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