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Electric Bike Battery


Electric Bike Battery

Regular price £299.00 Sale price £299.00

Unit price per 


only 2 left in stock

Authentic batteries for our stocked Wisper electric bikes, all three fit all Wisper City and Trekking models without any changes or adjustments to the bikes or batteries.

Compatible Models

  • Wisper 705 Step-Through
  • Wisper 806 Folding
  • Wisper 905 Crossbar
  • Note: This product can be purchased separately as a spare or backup battery but does not include a compatible charger - a compatible charger is provided when purchasing a Wisper electric bike at the same time.

    Capacity Advice

    A commonly asked question and our advice is generally to buy the biggest one you can afford, reason being is that the 575Wh battery will give you nearly 50% more range than the 375Wh battery and a 700Wh battery will double your range but most importantly the maximum power band is much longer on the two higher capacity batteries, helping you climb those steep hills on max power.

    The latest Wisper 700Wh batteries are installed with the very latest battery technology, these state-of-the-art batteries have advanced software that automatically assists in keeping a battery in perfect condition.

    A 575Wh battery will on average last one and a half to two times as long as the 375Wh battery and the 700Wh almost three times as long. This is due to the stress levels put on the battery being much lower on the larger battery.

    Wisper guarantees its batteries will not lose more than 30% of its capacity within two years of purchase. Consider that when a 575Wh battery has lost 30% of its capacity you still have a battery with a 400Wh, this will still offer assistance for longer than a brand new 375Wh battery, the same applies to the 700Wh battery after 2 years we guaranty you will still have just under 500Wh left.

    So, overall, a higher capacity battery is always cheaper but the critical point regarding battery longevity is that the battery is properly looked after, topped up regularly and never left flat for more than a few hours.

    Delivery & Returns

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    FREE Delivery

    Our standard shipping is completely FREE on mainland UK orders over £30* for clothing, components and accessories with delivery within one to two working days, alternatively you can upgrade your delivery to our guaranteed next day delivery (including Saturdays) option for just £9.95.

    We aim to dispatch order placed before 14:00 on weekdays (excl. bikes) that same day and all our domestic deliveries are fully traceable, tracking information will be emailed or messaged to you when your order has left our store.

    Next Day Delivery

    Our next day delivery courier is Royal Mail Special Delivery Guaranteed by 1pm® which guarantees delivery throughout much if the UK before 1pm the following day (regional restrictions apply).

    FREE Store Pickup

    If you are local to our area (Carlisle), you can collect your order from our store at your convenience. Collection is free of charge no matter how big or small the order value and you'll be able to collect your order from our store usually within 2hrs on weekdays.

    Please note that Store Pickup is not available if you're using an accelerated checkout option such as Apple Pay, Google Pay or PayPal Express.

    Delivery Pricing
    • Standard
      FREE on orders over £30 otherwise £3.95
      Delivery via Royal Mail Tracked 48 or DPD Local depending on order value and the item(s) being ordered.
      Delivery typically within one to two working days
    • Next Day
      Guaranteed delivery from just £9.95
      Delivery via Royal Mail Special Delivery
      Your order delivered before 1pm the following day (including on Saturdays) throughout much of the UK or your shipping fees back - Royal Mail regional restrictions apply.
    Easy Returns

    If an item doesn't fit or isn't quite what you expected then simply fill out the enclosed returns form and return your unwanted items to us within 28 days for a full refund, we'll accept orders returned to us after this period with refunds made via gift vouchers for use against future orders. Unfortunately, we're unable to cover the costs of returning items to us.

    For further information please see our Refund Policy for further details.

    Secure Delivery

    For security purposes, we reserve the right to cancel shipments to forwarding centres, PO Boxes, and locker boxes. For some items such as bikes and electric scooters, these can only be delivered to the billing address, no change of address or in-transit redirection is permitted for any consignments.

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