ChamRider SSE-036 DONGFENG I-2 Down Tube Battery 24V 6.4AH 7AH 7S2P 250W 350W 500W 21700 5-pin port E-Bike Battery Vivax Assist


1.Extended Length for Breakthrough Capacity: Redefine your ride with the DONGFENG I-2's extended length, unlocking a new level of capacity. This design evolution sets a new standard, providing more power for longer journeys.

2.Intuitive 4-Light Battery Level Display: Stay in control with the clear and convenient 4-light battery level indicator. Effortlessly track your power reserves, ensuring you're always aware of your battery status.

3.Bluetooth BMS for Lifespan Monitoring: Embrace the future of battery management with our integrated Bluetooth Battery Management System (BMS). Monitor your battery's lifespan balance in real-time, ensuring optimal performance and longevity.

4.Global Safety Certifications: Ride with confidence knowing the DONGFENG I-2 battery meets and exceeds safety standards. It is certified to comply with safety regulations in the European Union, the United States, and other countries, holding UL and CE certifications.

Upgrade your bicycle today and embark on a journey that transcends limits. Harness the power, performance, and peace of mind that only ChamRider's DONGFENG I-2 Battery can deliver.

Free Gift

Battery Cell Parameters

Each battery cell undergoes internal resistance testing

100% Real Capacity

Local Warehouses Worldwide

1 Year Warranty

Battery Cell Issue Full Compensation

ChamRider Certificates


Positive Feedback


About Us

Dongguan ChamRiderTechnology Co, Ltd wasestablished in 2012, supplierintegrating R&D, productionand sales. Our products includelithium-ion batteries, polymerbatteries, lithium-iron phosphateetc., and sold more than 100countries like United StatesUnited Kingdom,France, Spain, Russia, Germany and South Korea. At this stage, we havea highly skilled R&D team and an excellent after-sales team.

Drop Us a Line

Contact Information

Contact: Lyla
Tel: +86 18002690639
WhatsApp: +86 18002690951

Company Address

Country: China
Province: Guangdong
City: Dongguan
Address:No.11, Zhifu Road, Xinhe, Wanjiang District