Aostirmotor Ebikes S18 & S18-1500W Replacement Battery

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Replacement Battery for Aostirmotor S18 and S18-1500W Ebikes

This 48V/15Ah replacement battery fits the Aostirmotor Ebikes models S18 and S18-1500W. The replacement battery has an expected lifespan of about 1,000 charge cycles, and should give you a range of almost 40 miles per charge. To get a more precise estimate of potential range, check out our custom electric bike range calculator

To learn more about ebike batteries, check out our Ebike Battery FAQ.

Free shipping to the lower 48. For shipping to Canada, please send us your shipping address and the products you want, and we will find the best rate available. We cannot ship this brand to Alaska or Hawaii at this time.

Orders for in-stock items take 24-48 hours to process, then about 5-7 days in transit. Delays due to Covid have occurred. If an item is on backorder, the estimated ship date will be shown below the Pre-Order Button.

All products are shipped free within the Contiguous US via UPS, FedEx or similar carrier. Shipping to AK, HI and PR may incur additional charges.

If your package appears damaged from shipping, please do not accept it. Tell the driver to keep the package and contact us immediately at 888-883-3350. We offerGuide Package Protectionto ensure against lost, stolen or damaged goods. Click here to learn more about Guide.

Returns for buyer’s remorse are typically not accepted by our suppliers, and if accepted, the customer may incur shipping and restocking fees.

Please click here to read our entire Shipping & Returns Policy.


Ask a Question
  • I would like to buy a battery for my aostiromotor S18 and have it sent to Australia.

    We only ship within the US. You would need to arrange freight forwarding, and we use the US address of your freight forwarder when placing an order.

  • how do i order a replament key for my battery

    You could contact your dealer or Aostirmotor directly, but you might find that a locksmith could replace the lock and key more quickly.