Hailong 36V 48V 52V Li-Ion E-Bike Battery Pack with BMS
Hailong 36V 48V 52V Li-Ion E-Bike Battery Pack with BMS
Hailong 36V / 48V / 52V Lithium Battery Pack for E-Bikes & E-Scooters
Power up your electric ride with the SUYIJIA Hailong lithium-ion battery pack — engineered for high-performance electric bicycles, e-scooters, and trolling motors. Available in 36V, 48V, and 52V configurations with capacities of 15Ah, 18Ah, and 20Ah, this battery delivers the endurance and output you need for both daily commutes and longer adventures.
Made in Mainland China.
Why Choose the Hailong Battery Pack?
- Multi-Voltage Options: Compatible with 36V (42V charge), 48V (54.6V charge), and 52V (58.8V charge) systems — versatile enough for a wide range of motor setups from 250W up to 1500W.
- High Capacity: Choose 15Ah, 18Ah, or 20Ah to match your range requirements. Extended cycle life of 600–800 charge cycles.
- Built-In BMS Protection: The integrated Battery Management System actively guards against overcharging, over-discharging, overcurrent, overheating, short circuits, and voltage imbalance — for safe, worry-free operation every ride.
- 18650 Li-Ion Cells: High energy density cells provide fast charging, lightweight design, and a longer usable life compared to lead-acid alternatives — at roughly half the weight.
- No Memory Effect: Charge at any time without degrading capacity. No need to fully deplete before recharging.
- Eco-Friendly & Safe: Free from heavy metals and harmful substances. CE certified.
- Durable ABS Housing: Sturdy, impact-resistant casing protects internal cells from vibration and everyday wear.
Specifications
| Nominal Voltage | 36V / 48V / 52V |
| Charge Voltage | 42V (36V) / 54.6V (48V) / 58.8V (52V) |
| Capacity | 15Ah / 18Ah / 20Ah |
| Cell Type | 18650 Li-Ion |
| Standard Discharge | 15A–30A continuous; 60A peak |
| Compatible Motors | 200W, 250W, 350W, 500W, 750W, 1000W, 1500W |
| Battery Size | 370 × 90 × 110 mm (±0.2mm) |
| Battery Color | Black |
| Application | Electric Bicycle, E-Scooter, Trolling Motor |
| Certification | CE |
| Country of Origin | Mainland China |
Important Safety Guidelines
- Always observe correct polarity — do not reverse positive and negative terminals.
- Use only a dedicated CC/CV lithium-ion charger when charging.
- Keep the battery away from fire, heaters, and direct heat sources.
- Do not immerse in water or expose to moisture; store in a cool, dry place.
- Do not pierce, crush, or weld the battery pack directly.
- Do not transport alongside metal objects such as hairpins or necklaces.
- If storing long-term, charge at least once every three months to maintain cell health.
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Learn more: EPA guidance on lithium-ion battery handling
Frequently Asked Questions
Q: What motors is the Hailong 36V/48V/52V battery pack compatible with?
A: The Hailong battery pack is compatible with a wide range of electric bicycle and e-scooter motors, including 200W, 250W, 350W, 500W, 750W, 1000W, and up to 1500W motors. Always verify your motor's voltage requirement matches the battery variant you select (36V, 48V, or 52V).
Q: What does the built-in BMS protect against?
A: The integrated Battery Management System (BMS) provides protection against overcharging, over-discharging, overcurrent, overheating, short circuits, and cell voltage imbalance. This keeps the battery operating safely and extends its overall service life.
Q: How long does the Hailong lithium battery last?
A: The Hailong 18650 Li-Ion battery pack is rated for 600–800 charge cycles, which is approximately twice the service life of conventional lead-acid batteries. With proper care and regular charging (at least once every three months when in storage), you can maximize its longevity.
Q: What charger should I use with this battery?
A: Always use a dedicated lithium-ion charger with constant current / constant voltage (CC/CV) charging technology matched to your battery's voltage: 42V for 36V packs, 54.6V for 48V packs, and 58.8V for 52V packs. Using an incompatible charger may damage the battery or void any applicable warranty.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.