Place of Origin: China
Brand Name: Zhongda Electronics
Model Number: 12v/24v/36v/48v/52v
Certification: UN38.3/MSDS/ROSH/CE
Description:
The triangular lithium-ion battery for electric bicycles is an advanced energy storage system specifically engineered to integrate seamlessly into the frame design of modern e-bikes. As the name suggests, its unique triangular shape allows it to be housed efficiently within the main frame triangle of the bicycle, creating a sleek, aerodynamic profile while centralizing mass for improved stability and handling. Typically utilizing high-density Lithium-ion cells (such as 18650, 21700, or pouch cells) in configurations of 48V or 52V, it offers substantial capacity (commonly ranging from 10Ah to 20Ah+) to deliver extended range per charge. It features a robust Battery Management System (BMS) that protects against overcharging, over-discharging, short circuits, and thermal runaway, ensuring both safety and longevity. The casing is constructed from durable yet lightweight materials like aluminum alloy or reinforced plastic, offering resistance to weather, vibrations, and impacts. This design not only maximizes space utilization and aesthetic appeal but also provides easier removal for charging or security. It is the preferred power source for mid-to-high-performance e-bikes, balancing high energy output, reliability, and design integration perfectly.
A triangular lithium battery for electric bicycles is a high-capacity energy storage unit specifically engineered to fit seamlessly within the frame triangle of modern e-bikes. Its compact, angular design maximizes space utilization while centralizing weight for improved balance, stability, and handling. Built with high-density lithium-ion cells (e.g., 18650 or 21700) and advanced Battery Management System (BMS) technology, it delivers reliable, long-lasting power for extended ranges, steep climbs, and high-demand rides. The robust housing—often aluminum alloy or reinforced polymer—ensures durability against vibrations, impacts, and weather. This design combines performance, safety, and aesthetic integration, making it the preferred choice for mid-drive motor systems and discerning riders seeking both function and form.
Specifications:
| item | value | 
| Brand Name | ZD | 
| Model Number | ZD72V20Ah | 
| Place of Origin | China | 
| 
 | Guangdong | 
| Weight | 5kg | 
| The charging ratio | 1C | 
| The discharge rate | 1C | 
| Storage Type | Normal Storage | 
| Anode Material | LCO | 
| Application | Power Tools,Home Appliances,BOATS,Golf Carts,SUBMARINES,Electric Bicycles/Scooters,electric vehicles,Electric Wheelchairs,Electric Power Systems,Uninterruptible Power Supplies,Electric Forklifts | 
| OEM/ODM | Yes | 
| Cycle life | 2000 Times | 
| Battery cell | 18650/21700 | 
| Dimension | Customerization | 
| Warranty | 1 year | 
| Features | power | 
| Nominal Voltage V | 36V,48V,52V,72V | Compitable Bike | electric bike | 
| Charger | 2a,3a | Battery Management... | 30A,20A,40a | 
| Battery Style | TRIANGLE | Type | Lithium Battery | 
| Battery Position | TRIANGLE | Battery Type | Lithium Battery | 
| Application | electric bike,E-bike | Nominal Capacity Ah | 20Ah,28.8ah | 
| Battery Cell | 5000mAh | Cell Capacity | 4800mAh | 
| Place of Origin | Guangdong,China | Model Number | ZD48V30Ah | 
| Brand Name | Zhongda | ||
| Packaging and delivery | |||
| Selling Units | Single item | Single package size | 20X40X40 cm | 
| Single gross weight | 9.000 kg | ||
Quick Detail:
Triangle Battery
Frame Battery
Mid-Drive Battery
Downtube Battery
Integrated Battery
52V Triangle Pack
The primary purpose of a triangular lithium battery for electric bicycles is to serve as a high-capacity, structurally integrated power source designed specifically for mid-to-high-performance e-bikes. Its unique shape allows it to fit securely within the main frame triangle, centralizing mass to improve bike handling, stability, and overall aesthetics. By utilizing high-energy-density lithium-ion cells, it delivers extended range and consistent power output for commuting, long-distance touring, and tackling steep inclines. The battery often supports high discharge rates required by mid-drive motors, making it ideal for applications demanding both efficiency and reliability, while its streamlined design maintains the bicycle’s original geometry and riding characteristics.



Applications:
Many modern triangle batteries are equipped with Bluetooth connectivity, allowing them to pair with a dedicated smartphone application (app). The application of this software enables riders to:
Monitor Performance: View real-time data on battery charge level, voltage, remaining range, and power output.
Diagnose Health: Run system checks, view cycle count, and receive error code notifications for diagnostics.
Customize Settings: Adjust parameters like maximum assist level, power output curves, and battery saving modes.
Enhance Security: Activate GPS tracking (if equipped) and lock the battery remotely via the app to prevent unauthorized use.
Competitive Advantage:
The competitive advantage of an e-bike triangular lithium battery lies in its perfect fusion of high performance and seamless integration. Its unique shape allows it to be mounted centrally within the bicycle frame, dramatically improving weight distribution and handling stability for a more natural ride feel. With space for more cells, it delivers greater capacity and extended range than most external batteries, while its integrated design enhances aesthetics and theft resistance. Equipped with advanced BMS protection and durable, weather-resistant housing, it offers superior safety and reliability—making it the preferred power solution for high-performance mid-drive e-bikes where balance, range, and durability are critical.
 
                  
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