14.8V 20Ah 21700 Lithium Battery Pack
The 14.8V 20Ah 21700 battery pack overcomes the limitations of conventional LiPo batteries. The innovative design delivers superior power density – offering enhanced flight time while maintaining a lighter, more compact form factor. Engineered for demanding applications, it ensures stable high-current discharge performance even under extreme operating conditions. The space-efficient configuration seamlessly integrates with RC and FPV equipment constraints. Furthermore, its advanced cell arrangement significantly improves cycle durability, reducing maintenance costs and replacement frequency.
Key features：
- 4S4P 21700 design with high energy density, delivering 14.8V 20Ah (296Wh).
- Lightweight structure that improves flight efficiency and maneuverability.
- Compact size with pre-installed connectors for easy integration into RC and FPV.
- Built-in BMS offers multiple protections: overcharge, over-discharge, short-circuit, and temperature.
| No. | Item | Parameter | Remark |
|---|---|---|---|
| 1 | Nominal Voltage | 14.8V | 3.7V/Cell |
| 2 | Nominal Capacity | 20Ah | @0.2C |
| 3 | Minimum Capacity | ≥19500mAh | |
| 4 | Initial Internal Impedance | ≤120mΩ | AC 1KHZ |
| 5 | Standard Charge Voltage | 16.8V | 4.2V/Cell |
| 6 | Standard Charge Current | 4A | 0.2C |
| 7 | Max. Charge Current | 20A | 1C |
| 8 | Standard Discharge Current | 4A | 0.2C |
| 9 | Max. Discharge Current | 60A | / |
| 10 | Burst Discharge Current | ≤100A | ≤100ms |
| 11 | Discharge Cut-off Voltage | 12.0V | 2.7V/Cell |
| 12 | Cycle Life | ≥350 cycles | Retention: ≥70% |
| 13 | Charge Temperature | 0°C~45°C | Standard Charge |
| 14 | Discharge Temperature | -20°C ~+60°C | Standard Discharge |
| 15 | Storage Temperature | -20°C~ +45°C | ≤3 Months |
| 16 | Weight | About 1.3 | kg |
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14.8V 20Ah 21700 battery pack FAQs
Can I customize the battery pack’s size, capacity, or connectors?
Absolutely. CM Batteries specializes in OEM/ODM solutions. We can modify voltage, capacity, discharge rate, and connector types based on your exact requirements.
What certifications does this battery pack have?
We can provide UN38.3, MSDS, CE, RoHS, and other certifications required for your market. For special applications, we can arrange additional compliance testing (e.g., IEC62133, UL1642).
How many cycles can the battery pack achieve?
When properly maintained, this battery achieves 800+ charge cycles with over 80% capacity retention, enabled by our precision-engineered 21700 cell architecture and intelligent BMS safeguards.
Can this battery operate in extreme temperatures?
Standard version works in -20°C to 60°C. We also offer low-temperature (-40°C) or high-temperature (+80°C) versions upon request.
Can you supply samples for testing before bulk order?
Yes, sample orders are available. We recommend testing the battery in your specific application to confirm compatibility before mass production.
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.
