YPWP Hailong E-Bike Battery 36V 48V 52V
YPWP Hailong High-Capacity E-Bike Battery Pack (36V / 48V / 52V | Up to 40Ah | Bafang BBS02 BBS03 BBSHD Compatible)
Power your custom build or mid-drive conversion with the YPWP Hailong High-Capacity E-Bike Battery Pack. Specially designed for down-tube frame mounting, this classic Hailong-style casing is the industry standard for high-performance conversions utilizing Bafang BBS02, BBS03, and BBSHD mid-drive systems, as well as high-torque hub motor setups. Available in 36V, 48V, and 52V architectures with massive capacity options up to 40Ah, this battery provides continuous energy delivery, long cycle life, and bulletproof reliability for long-distance riding.
⚠️ Key Performance & Safety Guidelines
IMPORTANT VEHICLE & BATTERY SPECIFICATIONS:
Optimized for Bafang Mid-Drive Motors: Internal high-current BMS is built to handle the heavy peak amp draws of Bafang BBS02 (750W), BBS03, and high-output BBSHD (1000W+) drive systems.
Standard Hailong Down-Tube Form Factor: Compact 360×90×110 mm outer dimensions mount directly to standard water bottle cage braze-ons on most bicycle frames.
High-Output 52V Architecture Option: Selecting the 52V configuration delivers reduced voltage drop under load, increased top-end motor RPM, and cooler motor operating temperatures.
Integrated Safety BMS: Multi-stage Battery Management System guards against over-charging, over-discharging, short circuits, and thermal runaway.
🚀 Key High-Performance Features
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Massive Energy Reserve Options (Up to 40Ah): Choose from high-capacity options to power extreme long-distance commutes and heavy cargo hauling without mid-ride recharging.
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Quick-Release Mounting Base Plate: Universal slide-and-lock cradle screws into frame water bottle mounts, allowing easy battery removal for off-bike charging or secure indoor storage.
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Integrated Mechanical Key Lock: Heavy-duty cylinder lock secures the battery pack directly to the mounting bracket to prevent theft.
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LED Power Status Indicator: Touch-activated LED battery gauge displays remaining charge level at a glance.
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External USB Charging Port: Integrated 5V USB output port lets you charge mobile phones, GPS devices, or bike lights directly from the main battery reserve while on the trail.
📊 Technical Specifications Matrix
| Specification Parameter | YPWP Hailong Battery Specifications |
| Brand & Series | YPWP Hailong Series |
| Motor Compatibility | Bafang BBS02, BBS03, BBSHD & Universal 36V/48V/52V Motors |
| Physical Dimensions | $360\text{ mm} \times 90\text{ mm} \times 110\text{ mm}$ ($14.1" \times 3.5" \times 4.3"$) |
| System Voltage Options | 36V / 48V / 52V Architecture |
| Nominal Capacity Options | 18Ah / 20Ah / 30Ah / 40Ah |
| Cell Chemistry & Type | High-Density Lithium-Ion (Li-Ion) |
| Total Weight Range | $4.0\text{ kg} - 4.7\text{ kg}$ ($8.8\text{ lbs} - 10.3\text{ lbs}$) |
| Frame Mounting Type | Down-Tube Bottle Cage Braze-On Cradle System |
| Auxiliary Power Output | 5V USB Port for Mobile Device Charging |
📋 Ideal Applications
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Bafang Mid-Drive Conversions: Ideal power source for DIY e-bike conversions using Bafang BBS02 ($750\text{W}$) or BBSHD ($1000\text{W}$) motor kits.
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Custom Down-Tube E-Bike Builds: Sleek Hailong casing fits neatly inside the main triangle of mountain, road, and commuter bicycle frames.
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Long-Range Touring & Off-Road Exploration: Scale up to the 30Ah or 40Ah capacity tiers to extend your continuous riding range to 60+ miles on a single charge.
📦 Package Contents
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1 x YPWP Hailong Lithium-Ion E-Bike Battery Pack
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1 x Quick-Release Frame Mounting Base Cradle
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2 x Frame Security & Locking Keys
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1 x Discharge Connector Cable / Adapter
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1 x Owner Care & Safety Manual
Power your Bafang mid-drive or custom e-bike build with high-capacity Hailong power! Select your voltage and capacity above, click Add to Cart, and order today!
36V Specification:
Normal Volt: 36V
Battery Cell:18650
Battery size:360*90*110mm
Max Constant Discharge Current:25A
Peak current:60A
Charge voltage:42V
Discharge cut-off voltage:28V
Cycle Life:1000 tims
Charge Temperature:-15-65℃
Discharge Temperature:-15-65℃
Protection Function: Overcharge, Overdischarge, Overcurrent, Short circuit, Balance
48V Specification:
Normal Voltage: 48V
Battery Cell:18650
Battery size:360*90*110mm
Max Constant Discharge Current:30A
Peak current:60A
Charge voltage:54.6V
Discharge cutoff voltage:36.4V
Cycle Life:1000 times
Charge Temperature:-15-65℃
Discharge Temperature:-15-65℃
Protection Function: Overcharge, Overdischarge, Overcurrent, Short circuit, Balance
52V Specification:
Normal Voltage: 52V
Battery Cell:18650
Battery size:360*90*110mm
Max Constant Discharge Current:30A
Peak current:60A
Charge voltage:58.8V
Discharge cut-off voltage: 39.2V
Cycle Life:1000 times
Charge Temperature:-15-65℃
Discharge Temperature:-15-65℃
Protection Function: Overcharge, Overdischarge, Overcurrent, Short circuit, Balance






Details
This product is crafted with quality materials to ensure durability and performance. Designed with your convenience in mind, it seamlessly fits into your everyday life.
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