Vimana V40 21700 4000mAh 10C Li-Ion Cell
SKU VIMANA-V40-21700-4000
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Product details
The Vimana V40 is a high-drain 21700 lithium-ion bare cell designed for custom FPV and UAV battery packs. By combining a 4000mAh capacity with an aggressive 10C discharge rating, it bridges the gap between the endurance of standard Li-ion chemistry and the high current-delivery requirements of heavier long-range platforms.
Key features
- High-discharge 10C rating supports continuous current draws up to 40A to minimise voltage sag during throttle punches.
- 4000mAh capacity extends flight times on cruising setups without the weight penalty of equivalent high-capacity LiPo packs.
- Standard 21700 dimensions (21mm diameter, 70mm length) ensure compatibility with common 3D-printed battery cases and spot-welding jigs.
Specifications
- Format: 21700
- Chemistry: Lithium-ion
- Nominal voltage: 3.6V (4.2V max charge)
- Discharge end voltage: 2.75V
- Capacity: 4000mAh
- Max continuous discharge: 10C (40A)
- Burst discharge: 50A
- Weight: 65g
This bare cell is an ideal foundation for assembling high-current 4S or 6S endurance packs for 7-inch FPV cruisers, fixed-wing aircraft, and cinelifters. Ensure you use appropriately rated nickel strips and heavy-gauge wire to safely handle the 40A continuous output during pack assembly.
| Cell Count | 1S |
|---|---|
| Chemistry | Li-ion |
| Capacity | 4000 mAh |
| C-Rating | 10 C |
| Cell Format | 21700 |
| Made in India | Yes |
| Brand | VimanaFPV |
| Weight | 65 g |
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