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B1M-4821 48V 21Ah 1008Wh replacement e-bike battery for ET Cycle F720 and F1000. Designed to replace the compatible original B1M battery. Read more..
The B1M-4821 is a replacement lithium-ion battery designed for compatible ET Cycle F720 and F1000 electric bikes. With 1008Wh of nominal energy, it provides a practical solution for replacing the original B1M battery while maintaining the proper battery format for these compatible models.
Each battery is carefully tested before shipping and is backed by a 3-year warranty.
Before ordering, compare the battery model, voltage, mounting system and connectors with your original battery to ensure compatibility.
3-year warranty
Battery tested before shipping
High-capacity 21Ah battery
1008Wh nominal energy
Designed for compatible ET Cycle models
Shipping across Canada
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