52V 25Ah eBike Triangle Battery | SAMSUNG 50G Cells
Free Shipping + Duties Included
Free Shipping + Duties Included
Free Shipping + Duties Included
Free Shipping + Duties Included
Free Shipping + Duties Included
Free Shipping + Duties Included
Free Shipping + Duties Included
Free Shipping + Duties Included
Free Shipping + Duties Included
Free Shipping + Duties Included
Free Shipping + Duties Included
Free Shipping + Duties Included
Free Shipping + Duties Included
Free Shipping + Duties Included
Free Shipping + Duties Included
Free Shipping + Duties Included
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Built Fresh To Order
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2-Year Full Warranty
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- Genuine Samsung 21700 50G Cells (1,300Wh) : Packed with 70 original Grade-A cells in a 14S5P setup. Delivers solid throttle response, zero fake capacity, minimal voltage sag under heavy load, and 800+ reliable charge cycles.
- Smart JBD Bluetooth BMS (30A / 50A / 60A Options) : Connect via iOS/Android app to monitor real-time cell voltages, pack temperature, and amp draw. Perfectly matches 1000W, 2000W, and 2500W e-bike conversion motors like Bafang BBS02 and BBSHD.
- ABS Triangle Hard Case : Tough, impact-resistant shell built to sit tight inside your frame triangle. Protects against trail rocks, vibration, and road splashes, complete with an ON/OFF power switch, LED fuel gauge, and a 5V 2A phone USB port.
- 58.8V 5A Smart Fast Charger Included : Cuts charging downtime by more than half compared to standard 2A chargers. Features active fan cooling and automated CC/CV cutoff to top off the 25Ah pack in just ~5 hours safely.
- 2-Year Official Warranty & US/EU Direct Support : Backed by full 2-year warranty coverage on internal Samsung cells and BMS hardware, giving DIY builders total peace of mind for daily commuting and off-road riding.
52V 25Ah Triangle E-Bike Battery
Built for serious DIY builders and long-range riders who need raw, reliable power. We packed 70 original Samsung 21700 50G cells into a rugged triangle ABS shell designed to lock tight inside your frame triangle.
Grade-A Samsung 50G Cells
Genuine 21700 5000mAh cells arranged in a 14S5P configuration. Low voltage sag under heavy throttle with 800+ life cycles.
Smart JBD Bluetooth BMS
Check cell voltages, pack temperature, and active amp draw right from your phone. Toggle charge/discharge ports anytime.
Heavy-Duty Triangle ABS Shell
Hard-cased against rock strikes, trail vibration, and splashes. Fits cleanly into standard bicycle triangle geometry.
Power Switch, LED & USB Port
Integrated physical power switch cuts idle parasitic drain. Includes an instant LED fuel gauge and 5V 2A phone charging.
Technical Specifications
Accurate lab-tested data for builders and frame fitment
| 01 Physical & Frame Fitment | |
|---|---|
| Battery Dimensions | 375 × 235 × 410 mm (Hypotenuse) × 90 mm 14.76" × 9.25" × 16.14" (Hypotenuse) × 3.54" |
| Net Pack Weight | Approx. 6.5 kg (14.33 lbs) |
| Enclosure Material | High-Impact ABS Plastic Hard Case (Water/Dust Resistant) |
| Physical Interface | Integrated ON/OFF Rocker Switch, LED Fuel Gauge, USB 5V 2A Port |
| 02 Battery & Electrical Specs | |
| Nominal Voltage / Capacity | 52V / 25Ah (1,300Wh Total Energy) |
| Internal Cell Structure | Samsung 21700 50G (5000mAh) — 14S 5P (70 Cells Total) |
| Charge Cut-off Voltage | 58.8V ± 0.05V |
| Discharge Cut-off Voltage | 39.2V – 42.0V |
| Cycle Life | 800+ Cycles (to 80% original capacity under standard use) |
| 03 Smart Management & Charging | |
| BMS Protection System | Smart JBD BMS with Bluetooth (iOS / Android App connectivity) |
| BMS Safety Protections | Over-charge, Over-discharge, Over-current, Short-circuit, Cell Balance |
| Standard Fast Charger | 58.8V 5A Smart CC/CV Charger (Included) |
| Approximate Charge Time | ~5.0 – 5.5 Hours (from 0 to 100%) |
| 04 Environment & Warranty | |
| Operating Temp (Discharge) | -20°C to 60°C (-4°F to 140°F) |
| Operating Temp (Charge) | 0°C to 45°C (32°F to 113°F) |
| Storage Temp (Recommended) | 10°C to 25°C (50°F to 77°F) @ 50%-70% SOC |
| Warranty Coverage | 2-Year Official Warranty Covers BMS & Cell manufacturing defects |
Smart JBD BMS & Motor Matching
Select the right continuous discharge rate to match your motor controller setup
• 70 – 90 Miles (Pedal assist)
• 55 – 75 Miles (Pedal assist)
• 45 – 65 Miles (Pedal assist)
58.8V 5A Smart Fast Charger Included
Engineered specifically for 14S 52V lithium packs with advanced thermal and over-voltage management.
Automatic CC/CV Staging
Delivers constant current for quick topping, then transitions into constant voltage to gently balance every individual cell.
Active Silent Cooling Fan
Built-in high-speed brushless fan exhausts internal heat continuously, keeping the aluminum casing cool under full 5A load.
Dual-Color Status LED
Clear visual feedback at a glance. Solid Red indicates active fast charging; Solid Green confirms complete balance and cut-off.
Multi-Layer Circuit Protection
Equipped with automatic cut-off for short-circuit, reverse polarity, over-voltage, and internal overheating safety.
FAQ
Clear, straightforward answers about battery fitment, Bluetooth BMS setup, and long-term care.
Can I run this 52V battery on my 48V e-bike motor and controller?
Which BMS rating should I choose: 30A, 50A, or 60A?
How do I connect the Smart JBD BMS to my phone?
Why does the charger output 58.8V, and is 5A charging safe for 25Ah?
Can I ride with this triangle battery in heavy rain?
How should I store the battery during the off-season or winter?
What does the 2-Year Official Warranty cover?
Built-To-Order & Shipping Process
Fresh Built-To-Order
Every battery pack is custom built directly upon your order rather than pulled from sitting warehouse shelf stock. This guarantees maximum fresh chemical cycle life, zero capacity degradation, and optimal cell health from day one.
Authentic Cells & Full Test
We source original grade-A Samsung cells straight from official distributors per order. Once assembled, every pack undergoes a full charge and discharge test cycle to verify capacity, BMS balance, and thermal safety before final packing.
Door-To-Door Freight
Packs pass Hong Kong customs battery safety inspection and ship direct to your door via FedEx/UPS (US/CA) or DPD/DHL (EU). Delivery typically takes 15–20 business days. All import duties, taxes, and door-step delivery are fully covered.


