+8615360903247
+8615360903247
At JUNDA, we offer our global partners high-quality, customizable e-bike battery packs, including 36V, 48V, and 52V models in popular case styles like Hailong, Dorado, Rear Rack, and more—ready to meet your technical and branding needs.
It’s hard to give 5 stars without running these in production for 20 years BUT, everything looks in order and as advertised. The sales contact was helpful and responsive, answered all questions etc. Also, I didn’t see any damaged cells on shipping. I usually get at least one but all cells arrived in good condition. So, as far as I can tell, the capacity and quality is as advertised.
John Dee (USA)
The battery fit perfectly. and was exactly as described. and shipping did extremely fast. Lucy helped me tremendously through the whole process. very happy with the whole experience.
Stephan Fenwick (UK)
Best service in the world,best quality,fastest delivery.thousand thanks !!!!!!
Harald Koch(Germany)
At JUNDA, product quality is our highest priority. We work diligently to ensure every battery pack meets global safety standards and delivers reliable performance for your e-bike applications.
We only use trusted cell brands such as Samsung, LG, BAK, and Lishen. Each batch is tested for voltage, capacity, and internal resistance before entering production.
Every BMS is inspected for safety features—overcharge, over-discharge, short-circuit, and temperature protection. Smart BMS options are fully tested for Bluetooth connectivity and data tracking.
Cells are grouped based on consistency in voltage and capacity to ensure balanced performance and longer battery life across all packs.
Battery packs are assembled in dust-controlled zones using calibrated welding equipment. Every wire, weld, and connector is double-checked during assembly.
Each battery undergoes charge/discharge cycle testing, voltage output checks, and thermal behavior analysis to ensure reliable performance under real-world conditions.
We provide UN38.3, MSDS, CE, RoHS, and optional UL2271 certificates to ensure safe international shipping and customs clearance.
All batteries are packed using DG-compliant cartons with foam protection, barcode or QR labeling, and moisture-resistant sealing.
Every battery is tagged with a unique batch number and production record. We keep retained samples and test data for traceability and support warranty claims efficiently.
Tell us what you need—voltage, capacity, case type, quantity, and any custom options (logo, BMS, packaging, etc.).
Our team will evaluate compatibility, suggest the best configuration, and provide a detailed quotation with lead time and certifications.
Once approved, we’ll arrange samples or move into mass production. We support EXW, FOB, and DDP shipping depending on your region.
Advanced production lines for certified, high-performance lithium battery packs
You get certified battery packs built for safety, performance, and compatibility. We support you with fast lead times, OEM flexibility, and full documentation—making global sourcing simpler and more reliable.
Standard battery samples ship within 3 days—accelerate your product testing or market launch.
We keep ready-to-ship inventory in the USA, Poland, and Canada for faster delivery and lower shipping costs.
Start from 50 pcs. Support for 3D design, private labeling, custom BMS, casing, and packaging.
Our products meet global standards, including UN38.3, CE, MSDS, RoHS, and optional UL2271—ready for safe international shipping and customs clearance.
Custom-built battery packs for your brand—tailored to fit your design, specs, and motor systems.
We offer popular e-bike battery case types such as Hailong, Dorado, and Rear Rack—compatible with most frames.
With 7 production lines and 100,000+ monthly output, we ensure reliable supply even during peak seasons.
From project evaluation to technical after-sales—we support your business with real engineers, not just salespeople.
We take battery safety seriously—from material sourcing to packaging and shipping. Every pack is built and tested to meet international safety standards, giving our clients peace of mind during transport, use, and resale.
Tell us what you need—we’ll respond with a solution, price, and lead time.