Same battery inside, different case. Both hold 60 Samsung cells (10S6P, 1080Wh) with the same 30A, 40A, and 50A BMS options. The blue PVC pack is smaller and lighter at 230 × 135 × 75 mm, while the metal case is 300 × 190 × 90 mm, adds an LCD display, and comes with a fireproof safety bag. Pick PVC for a tight frame and easy fit, and metal for a tougher shell and a screen.

By range. The 30Ah (1080Wh) suits daily commuting, the 40Ah (1440Wh) suits longer commutes, and the 60Ah (2160Wh) suits the longest rides and heavy daily mileage. All three use Samsung cells and top out at 1500W, so the choice is mostly about how far you ride between charges, not about power.

Motors rated 250W to 1000W are the sweet spot for all our 36V packs, from city hub motors to 500W-750W mid-drives. For stronger DIY builds up to 1500W, pick the 50A BMS option. Check your controller's battery current, not just the motor watts, when you size the pack.

It depends on your weight, speed, and how much you pedal. As a guide, at 15-20Wh per mile with pedal assist, the 30Ah (1080Wh) runs roughly 55-70 miles in theory, the 40Ah (1440Wh) roughly 70-95 miles, and the 60Ah (2160Wh) roughly 105-140 miles. Real range drops with hills, speed, and load.

Yes, we build custom packs all the time. Tell us your frame size, the capacity you want, and your connectors, and we will build a 36V pack with genuine Samsung cells, thick 10AWG wiring, and a smart Bluetooth BMS to fit. Start from the Build Your Battery page.