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Tired of range anxiety and complicated setups Meet your e-bikes perfect partner. The Varstrom x Hai-long Downtube/Rack Battery isnt just a power source its the heart of a smarter, longer, and more secure riding experience, built with the quality you expect from a trusted name. Sleek Design, Universal Fit & Substantial Power
Weve engineered this battery with a compact form factor to integrate seamlessly with most bicycle frames, whether you prefer the sleek, low-profile downtube mounting or the versatile rear rack setup. Its unassuming size belies the substantial energy within. Built with high-grade, genuine 18650 or 21700 lithium-ion cells, it delivers a robust capacity of up to 1440 Watt-hours. This translates to extended range for your adventures, allowing you to explore farther, commute without frequent recharges, and truly enjoy the freedom of electric assist. Wide Compatibility & Ready to Connect
Designed for versatility, this battery is the universal key to unlocking your e-bikes potential. It works flawlessly with popular conversion kits from BAFANG and TONGSHENG, whether you have a mid-drive or hub motor system. Available in 36V, 48V, and 52V configurations, it suits a wide array of DIY e-bike projects and ready-made electric bicycles. It comes standard with a secure XT60 female connector for reliable performance. Need a different connector Our team is just an email away to provide a tailored solution. Built-in Safety & Intelligent Protection
Your safety is our priority. The battery installs securely in its designated mount (a locking key is provided for theft deterrence), but the real peace of mind comes from within. Weve integrated a comprehensive multi-protection circuit management system. It diligently guards against over-current, over-voltage, over-discharge, short circuits, and temperature extremes. This multi-layered protection actively ensures safe operation, preserves the batterys long-term health, and protects your valuable e-bike system. Multi-Feature Convenience for the Modern Rider
This battery is designed for real-world use. Charging is simple and secure via the reliable XLR charging port. The removable design offers ultimate flexibility: charge it conveniently anywhere, or even carry a spare for ultra-long journeys. A clear charge level indicator LED lets you check the remaining power at a glance, while the physical power switch adds an extra layer of safety and control, preventing accidental discharge during storage or transport.
