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I ended up upgrading my Gigabyke Swift bike with a bigger 17.5 Ah battery from Unit Pack Power. It cost $400 total shipped for Samsung cells plus balancing BMS and 100-percent nickel strips. It took 22 days total for the battery to be built in China then delivered to me in New York. I made a...

To clarify for other people reading, as I understand it, UnitPackPower by default will use crappy Chinese cells, nickel-plated steel busbars and a crappy BMS that will not perform cell-balancing UNLESS you specifically request from them when ordering that you want a battery built with name-brand...

Good to know. Thanks for the heads up.

Thanks for the overview. Good to know about the battery indicator. How do you know what 750watt motors feel like when you're a noob? Per your original post, I did some searching and came across this battery supplier. This looks like a compatible Hailong style battery with the option for Samsung...

I am strongly considering getting that bike too, for the low weight, belt drive, single speed, and disc brakes. I live in NYC and my trips are short, under 5 miles, and NYC is relatively flat, but I do have to travel across the East Hudson River bridges where having an ebike helps a lot...