downtube hailong / polly battery
36V/48/52V battery
These batteries are designed for riders who need a lot of power, with a high capacity and longer range than other types of e-bike batteries. They’re often used for long-distance rides or off-road adventures.
Our battery packs are made using high-quality lithium-ion cells, stable quality BMS and advanced manufacturing techniques, so you can be confident in the safety and longevity.
With our expert engineering and design team, we can create custom Hailong battery packs that meet your specific requirements and provide you with a unique competitive advantage in the market.
Optional Cell: 18650/21700 Samsung, LG, Panasonic, EVE, LISHEN, DLG, CHAM，Sinowatt etc.
Basic specifications
| Model | SGP-polly 52V 21Ah | |
|---|---|---|
| Nominal Voltage | 52V | |
| Nominal Capacity | 21Ah | |
| Rated Energy | 1092Wh | |
| assembly | 14S6P 18650 samsung 35E | |
| Maximum Charge Voltage | 58.8V | |
| Standard Charge Current | 4-5A | |
| Maximum Charge Current | 21A | |
| Maximum Continuous Discharge Current | 50A or customized | |
| Maximum Peak Discharge Current (2 seconds) | 150A or customized | |
| Discharge Cut-off Voltage | 35V | |
| suitable motor | 1500W or customized | |
| Charge Temperature | 0~+45℃ | |
| Discharge Temperature | -20~+60℃ | |
| Cycle Life (25℃, 80%DOD) | >1000 times | |
| discharge line | customized as requested | |
| charge connector | DC2.1 or 3pin higher current | |
| Dimensions(mm) | 368*90*141mm | |
| Design life | >5 years |
Product details
Polly different dimensions
Product video
See Our Polly Battery in Action: the video showcases the details of POLLY battery packs. Our Polly battery packs are backed by our exceptional customer service and technical support, so you can rely on us for ongoing assistance and peace of mind.
Need help or have questions about our products? We’re just a click or call away. Contact us today and let us help you find the right solution for your needs.
