Overview
The Flywoo Explorer BAK P45D 21700 4S2P 9000mAh Lionpack Battery is a lithium-ion battery pack designed for long-duration RC power setups such as drones and RC aircraft. It uses INR-21700-P45D cells in a 4S2P configuration and is rated at 14.8V.
Key Features
- Cell type: INR-21700-P45D (21700 Li-ion)
- Multiple protection
- Low temperature resistance
- Connector system shown for the Explorer series: AMASS XT60 plug / XT30UP
Specifications
| Cell | INR-21700-P45D |
| Configuration / Capacity | 4S2P 9000mAh |
| Voltage | 14.8V |
| Discharge current (Explorer series parameter chart) | 45A (for 21700-4S2P-9000mAh) |
| Discharge performance (provided spec list) | 60A |
| Discharge wire plug | XT60 |
| Charge wire plug | JST-XH2.54-5P |
| Weight | 573.5g |
Explorer Series Voltage & Discharge Reference (from product graphic)
| Pack | Rated voltage | Discharge current |
|---|---|---|
| 18650-2S-3000mAh | 7.4V | 35A |
| 21700-2S-4500mAh | 7.4V | 45A |
| 18650-3S-3000mAh | 11.1V | 35A |
| 21700-3S-4500mAh | 11.1V | 45A |
| 18650-4S-3000mAh | 14.8V | 35A |
| 21700-4S-4500mAh | 14.8V | 45A |
| 18650-4S2P-6000mAh | 14.8V | 35A |
| 21700-4S2P-9000mAh | 14.8V | 45A |
| 18650-6S-3000mAh | 22.2V | 35A |
| 21700-6S-4500mAh | 22.2V | 45A |
| 18650-6S2P-6000mAh | 22.2V | 35A |
| 21700-6S2P-9000mAh | 22.2V | 45A |
What’s Included
- 1 x Flywoo Explorer BAK P45D 21700 4S2P 9000mAh Lionpack Battery
Applications
- Long-range drone and FPV builds requiring a 4S (14.8V) Li-ion pack
- RC aircraft, radios, and other RC electronics using XT60 power input
For charger, balance plug, or connector compatibility questions, contact support@rcdrone.top or visit https://rcdrone.top/.
Details

Flywoo Explorer 21700 Li-ion Lionpack batteries come with a compact shrink-wrapped pack and XT60-style power lead for straightforward connection.

The Flywoo Explorer 21700 4S2P 9000mAh Li-ion Lionpack is rated 14.8V with up to 45A discharge current.
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