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The External Battery SP1 for X35+ systems is the ideal solution for riders seeking extended range and dependable performance on longer or more demanding rides. Adding 208 Wh to the existing 250 Wh internal battery, it boosts total system capacity to 458 Wh—providing up to 4.5 hours of use at an average consumption of 100 Wh. Compact and lightweight, the SP1 mounts externally and integrates seamlessly with the X35+ setup, offering a simple and efficient way to extend ride time without adding unnecessary complexity.
Features
• Adds 208 Wh of capacity to the X35+ internal 250 Wh battery
• Expands total system power to 458 Wh
• Provides approximately 4.5 hours of runtime at 100 Wh average consumption
• External mounting design integrates neatly with existing X35+ systems
• Supplied with holder, user manual, silicone bands, and transportation box
• Unbranded (no logo) version for discreet installation
Specifications
Battery Type: External battery for X35+ systems
Capacity: 208 Wh (adds to 250 Wh internal battery for total 458 Wh)
Approximate Runtime: 4.5 hours at 100 Wh average consumption
Included Accessories: Holder, user manual, shipping box, two silicone bands
| Order Value | Service | Estimated Delivery | Cost |
|---|---|---|---|
| Under £39.99 | Royal Mail Tracked | 2–3 working days from dispatch | £4.99 |
| £39.99 and over | Royal Mail Tracked | 2–3 working days from dispatch | FREE |
| Any order — Express | Royal Mail Tracked 24hr / Parcel Force 24hr | Next working day from dispatch | £6.99 |
| Bikes | Parcel Force 48hr Signed For | 2 working days from dispatch | FREE |
Delivery times shown are from dispatch, not from the point of ordering. As we source products from a range of suppliers, lead times can vary — please check the product page, your cart, or your order confirmation for the most accurate estimate for this item.
Some remote UK postcodes (Highlands, Islands) may carry a courier surcharge on larger orders — we will always contact you before applying any additional charge.
Questions? Email sales@cyclestore.co.uk with your order number.
Terms and conditions:
- Price match must take into account any shipping charges applicable.
- Our price match promise only applies to online retailers, However this does not include auction websites such as eBay or non-UK based competitors or websites not operating secure (SSL) payment systems.
- Item must be in stock with the competitor and ourselves
- We reserve the right to refuse a price match for any other reason not previously mentioned at any time.