Varstrom 36V/48V Rear Rack E-Bike Battery Pack (17.5Ah/20.8Ah)
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Includes all key accessories and simple setup instructions for quick start!
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Expected arrival within 5–8 days
Looking for a clean, frame-saving power solution for your electric bike? The Varstrom E-Bike Rear Rack Lithium Battery Pack is engineered to mount neatly onto your rear carrier, keeping your frame triangle completely open while delivering dependable, long-range energy. Powered by reliable 18650 lithium cells, this battery is the ultimate upgrade for daily commuters and touring cyclists using popular conversion kits like Bafang and Tongsheng.
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Rear Carrier Design: Safely mounts onto the back of your bicycle, freeing up your frame triangle while keeping weight evenly distributed.
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Voltage & Capacity Options: Available in versatile 36V and 48V configurations with high-capacity choices (17.5Ah and 20.8Ah) to match your desired range and speed.
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Reliable 18650 Cells: Built using durable 18650 lithium-ion cells engineered for longevity, stable discharge, and high thermal performance.
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Broad Motor Compatibility: Perfectly suited for popular e-bike conversion systems, including Bafang BBS01/BBS02/BBSHD mid-drives and Tongsheng TSDZ2 motors.
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Smart BMS Protection: Integrated Battery Management System guards against over-charging, over-discharging, over-current, and short-circuits.
Customer Reviews
Pros: full 17.5 capacity (48v).
Cons: heavy. Rear rack might not fit over disc brake caliper. Bms low cut off is closer to 35v, which might be too low for some.
Product arrived quickly, functions.as expected. No issues this far.
Battery is as described great quality. Got it all set up today works perfect.