52V 20Ah 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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- Real Samsung 21700 50G Cells (1040Wh) : Packed with 56 original Grade-A Samsung cells in 14S4P to prevent power sag on steep climbs and deliver true 52V 20Ah extended range.
- Smart Bluetooth BMS via Phone App : Check live cell voltage, pack temp, and power stats right on your phone; choose 30A, 40A, or 50A continuous output to perfectly match 1000W–2000W motors.
- Tough ABS Hard Shell + USB Port : Sturdy frame-mount triangle casing protects against drops and trail vibrations, complete with an LED battery meter, power switch, and a 5V phone charger port.
- 58.8V 5A Smart Fast Charger Included : Recharges the entire 20Ah pack in just 4 to 4.5 hours with a solid metal case, active cooling fan, and auto-shutoff when full.
- Solid 2-Year Warranty : Backed by 2 full years of honest warranty coverage on the cells, BMS board, and charger so you can build and ride with zero worries.
52V 20Ah Triangle E-Bike Battery Pack (1040Wh)
Engineered for high-power frame-mount builds. Built with 56 genuine Samsung 21700 cells in a protective ABS hard shell, paired with Bluetooth live cell tracking and a high-current 5A fast charger.
Grade-A Samsung 21700 50G
14S4P configuration delivers sustained high-current draw with minimal voltage sag under load. Zero generic cells.
Rigid ABS Hard Shell & 5V USB
Durable triangle enclosure shields against impacts and frame vibrations. Includes a push-button LED fuel gauge and 5V phone charging.
Smart JBD Bluetooth BMS
Track individual cell voltages, temperature, and live discharge rates via smartphone app. Remotely toggle charge/discharge gates.
58.8V 5A Smart Fast Charger
Refuels the 20Ah pack significantly faster than standard 2A units. Active fan cooling and auto-cutoff prevent overcharging.
Technical Specifications
Smart JBD BMS & Motor Compatibility
Select the continuous discharge current that matches your controller and motor power. All options include full Bluetooth cell monitoring and programmable low-voltage cutoffs.
- Target Motor: Up to 1000W
- Peak Current: 90A (≤ 1 sec)
- Best Suited For: Commuters / BBS02
- Target Motor: Up to 1500W
- Peak Current: 120A (≤ 1 sec)
- Best Suited For: BBSHD / 1500W Direct
- Target Motor: Up to 2000W
- Peak Current: 150A (≤ 1 sec)
- Best Suited For: Custom High-Power Builds
58.8V 5A Smart Fast Charger
Engineered for fast turnarounds, cool thermal performance, and dependable garage safety. Built with a solid aluminum housing, intelligent CC/CV circuitry, and full auto-shutoff protection.
Heavy-Duty Aluminum Shell
Durable alloy housing dissipates heat rapidly and protects internal electronics from impacts.
Active Fan Cooling
Integrated high-flow fan keeps internal components cool and prevents throttling during high-amp cycles.
Intelligent Auto Cut-Off
Terminates charging immediately upon reaching full 58.8V capacity to prevent continuous trickle wear.
Multi-Layer Safety Circuit
Built-in protections against short circuits, over-voltage, reverse polarity, and thermal runaway.
FAQ
Clear answers to common questions about fitment, BMS rating, Bluetooth setup, and real charging times.
Will this triangle battery fit my specific bike frame?
This battery measures 375 mm (14.76 in) long, 235 mm (9.25 in) high, 410 mm (16.14 in) along the hypotenuse, and 90 mm (3.54 in) thick.
Before ordering, cut out a simple cardboard template matching these dimensions and place it inside your bike triangle. Make sure your frame has enough clearance for the 90 mm width and cable routing.
Which BMS option should I choose: 30A, 40A, or 50A?
Match the BMS continuous rating to your motor controller limit:
• 30A BMS: Perfect for 48V/52V 750W–1000W setups (like Bafang BBS02 or stock direct-drive hub motors).
• 40A BMS: Ideal for 1000W–1500W systems (like Bafang BBSHD with upgraded current limits).
• 50A BMS: Recommended for 1500W–2000W high-power custom builds and steep hill climbing.
Are these authentic Samsung 21700 50G cells or generic cells?
Every single pack is built with 56 genuine Grade-A Samsung INR21700-50G cells in a 14S4P configuration. We never mix generic or B-grade cells. You can verify real-time individual cell voltages and balance health directly inside the Bluetooth app.
How does the Smart JBD Bluetooth app work?
Simply download the free xiaoxiangBMS (or compatible JBD app) on iOS or Android. Connect to the battery via Bluetooth without pairing passwords.
The app shows live pack voltage, individual cell delta, real-time discharge/charge amps, battery temperature, and remaining capacity in real time.
How long does a full charge take with the included 5A charger?
A full charge from empty takes approximately 4.0 to 4.5 hours using the included 58.8V 5A aluminum fast charger. The built-in cooling fan runs during high-rate charging, and power shuts off automatically once the battery hits 58.8V.
What is covered under the 2-Year Warranty?
We provide a full 2-year warranty covering the internal cell pack integrity, BMS board, and included 5A charger against manufacturer defects. If you experience unexpected capacity drop or hardware faults under normal riding conditions, we provide replacement parts or pack service.
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.


