Range Extender Battery
The Cikada Range Extender Battery (also known as the Bottle Battery) is a sleek, compact add-on that dramatically extends your e-bike's range while keeping things lightweight and stylish. Designed to fit neatly in a standard downtube bottle cage like a regular water bottle, it delivers extra power seamlessly when paired with the main in-tube battery on our Universal and Urban series bikes. With its 244.8Wh capacity from premium Samsung cells, it can add up to 30-56 miles (48-90km) of assisted riding (depending on terrain, weight, assist level, and conditions), making it ideal for longer commutes, all-day adventures, or rides where charging points are scarce.
Its removable design makes it incredibly practical: you can easily take it off the bike for charging indoors (or wherever convenient), charge it on or off the bike using a compatible Cikada charger, and pop it back in when needed—no tools required. The IPX5 waterproof rating handles wet weather rides reliably, while rigorous certifications ensure top-tier safety and performance.
Eco-friendly
Sturdy
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Battery Highlights
Extended commuting: Push your daily city or suburban routes farther without mid-day recharges—perfect for work, errands, or multi-stop days.
Adventure and exploration: Tackle longer trails, gravel paths, or countryside loops with confidence, knowing you've got backup power for hills or detours.
Touring and leisure rides: Enjoy full-day outings or group tours with minimal stops, focusing on the scenery rather than battery worries.
Hilly or variable terrain: Extra capacity helps maintain strong assist on demanding inclines or mixed conditions, reducing strain on the primary battery.
Key Features
- Extend range to 30-56 miles (48-90km)
- Premium Samsung batteries for reliable, efficient energy delivery
- Removable – Charge on or off the bike
- Lightweight, no difference to the ride feel or pop an additional one in your backpack for an even further ride
- Supplied with connecting cable and water bottle mount holder.
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Specification
Power System
Battery: Samsung PowerFlow lithium-ion cells; 36V, 6.8Ah, 244.8Wh capacity; removable downtube-mounted design
Charging Time: 4-6 hours (compatible with standard Cikada chargers)
Compatibility: Exclusively for Cikada Universal and Urban series bikes; integrates seamlessly with dual-battery-ready systems
Frameset/Design
Type: Range Extender (Downtube-mounted, water bottle style)
Dimensions: 78.5 x 78.5 x 249.5mm (3.1 x 3.1 x 9.8″)
Weight: 1.5 kg (lightweight for easy handling and minimal impact on bike feel)
Additional Information
Waterproof Level: IPX5 (resistant to water jets and rain)
Certifications: EU and US - EN 50604 and UL2271
Maximum Extended Range: Up to 56miles (90km) when paired with main battery (actual range varies by usage)
Conforms To Standards: Compliant with UN38.3 for safe transport, plus relevant EMC and environmental guidelines
Warranty: Up to 600 charges or 2 years, whichever comes first
Learn more about e-Bikes
Check out our guides to improve your first time experience with e-Bikes.