22.2V 28Ah 21700 Li-ion Battery Pack
The 22.2V 28Ah 21700 lithium-ion battery pack meets the high demands of large UAVs and industrial equipment. Cutting-edge high-performance 21700 cells, it offer 28Ah capacity and stable high-current output. It includes anti-spark connectors for safe starts and a reinforced IP65-rated enclosure for reliable operation in humid, dusty, or rainy conditions.
Key features：
- Connector:XT-90S Anti Spark for discharge and 5-pin JST-XH for charge
- Waterproof IP68 housing is optional
- Weight:3.1KG
| No. | Item | Parameter | Remark |
|---|---|---|---|
| 1 | Nominal Voltage | 22.2V | 3.7V/Cell |
| 2 | Nominal Capacity | 28Ah | @0.2C |
| 3 | Minimum Capacity | ≥27.5Ah | / |
| 4 | Shipment Voltage | 21V~23.4V | / |
| 5 | Initial Internal Impedance | ≤120mΩ | AC 1KHZ |
| 6 | Standard Charge Voltage | 25.2V | 4.2V/Cell |
| 7 | Standard Charge Current | 5.6A | @0.2C |
| 8 | Max. Charge Current | 28A | 1C |
| 9 | Standard Discharge Current | 5.6A | @0.2C |
| 10 | Max. Discharge Current | 50A | 3s |
| 11 | Burst Discharge Current | ≤100 | ≤20ms |
| 12 | Discharge Cut-off Voltage | 18.0V | 3V/Cell |
| 13 | Cycle Life | ≥500 cycles | Retention: ≥70% |
| 14 | Charge Temperature | 0°C~45°C | Standard Charge |
| 15 | Discharge Temperature | -20°C ~+60°C | Standard Discharge |
| 16 | Storage Temperature | -20°C~ 45°C | ≤3 Months |
| 0°C ~ 25°C | ≤1 Year | ||
| 17 | Weight | About 3.1 | kg |
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22.2V 28Ah 21700 battery pack FAQs
Will the IP68 waterproof version have heat dissipation issues during long-term outdoor use?
The IP68 housing has built-in thermal pathways to maintain safe temperatures, even when sealed.
How durable is the anti-spark connector under frequent use?
We use industrial-grade XT-90S connectors, rated for over 1,000 mating cycles, ensuring reliable contact under high currents.
Will transportation and customs clearance be complicated for such a high-capacity battery?
Our battery packs comply with UN38.3 transportation testing and come with MSDS, transport certifications, and necessary customs docs. We offer DDP/DDU shipping for easier delivery.
Can you supply samples for testing before a bulk order?
Yes, we accept the sample orders. We suggest testing the battery in your specific application to ensure compatibility before mass production.
What certifications does this battery pack have?
We can provide UN38.3, MSDS, CE, RoHS, and other required certifications. For special applications, we can arrange additional compliance testing (e.g., IEC62133, UL1642).
Tailored Customization
Our design team can create custom battery designs for just about any device or machine.
Timely Delivery
Our efficient production and distribution process gets your product delivered in a timely manner.
Quality Guarantee
We stand by our products and guarantee you’ll be happy with your purchase.
