ChamRider SSE-079 SONGXIA II Rear Rack Battery 36V 48V 52V 16AH 14.5AH 17.5AH 250W 350W 500W 18650 energy-efficient E-Bike Battery Bulls Bikes

1.Advanced Bluetooth BMS with Remote Monitoring: With our internally developed high-performance Bluetooth Battery Management System (BMS), you can effortlessly monitor your battery's status using your smartphone. Stay connected and stay informed, ensuring optimal battery performance and peace of mind.2.Futuristic Tail Light Design: The SONGXIA II Battery features a sleek and technologically advanced tail light design. Not only does it add a touch of sophistication to your electric bike, but it also serves as a safety feature, alerting vehicles behind you and enhancing your visibility on the road.3.4-Level Battery Indicator: Stay in control of your ride with the SONGXIA II Battery's convenient 4-level battery indicator. It provides a clear and accurate depiction of your remaining power, allowing you to plan your rides with confidence and avoid unexpected surprises.4.High-Strength Alloy Battery Mount: To ensure the utmost stability and durability, the SONGXIA II Battery comes with a spec