VAPCELL Samsung 21700 40T Li-ION Battery – High Capacity Battery for Long-Range Drones

Designed for the Power- mission profile the Samsung 40T is a balanced cell that doesn't sacrifice discharge for capacity. The 21700 form factor helps with internal resistance and better thermal management during high-current draw phases like take-off and punch-outs.

Key Technical Specifications:

• Power Output Mastery: The Samsung 40T is rated for 35A discharge making it safe for 6S1P or 6S2P packs on drones that require high instantaneous thrust without the risk of thermal runaway.
• Cell Architecture: The 21700 footprint offers volume than an 18650 allowing for a 4000mAh energy density that extends mission range by 30-40% over standard LiPo builds. The Samsung 40T cell is 21mm x 70mm in size.
• These Samsung 40T cells are sourced through Vapcell. Undergo strict batch testing to ensure they meet the Samsung Grade-A specification. This is crucial for preventing cell imbalance in -cell UAV packs.
• The 40T chemistry is robust enough to handle the cycles of the Indian climate. It maintains a discharge curve even in ambient temperatures up to 45°C.
• The Samsung 40T is ideal for custom Sub-250g long-range. Heavy 7-inch "Mountain Surfers".
• Vapcell rewrap ensures authenticity and quality of the Samsung 40T cells.
• The flat top design of the Samsung 40T cells suits applications.
• They are rechargeable for long-term performance.
• The Samsung 40T cells have internal resistance for maximum efficiency.
• They are of quality for durable safe operation.

(FAQ)

1. What makes the Samsung 40T ideal for FPV and UAV applications?

The Samsung 40T offers a 35A continuous discharge while maintaining a 4000mAh capacity. For FPV pilots this means you get the flight time of a Li-Ion with the punch and low voltage sag usually only found in LiPo batteries. The Samsung 40T cell is a choice for FPV and UAV applications.

2. Can I use the Samsung 40T for racing drones or just long-range UAVs?

The 40Ts 35A rating allows it to handle the higher amp draws of 5-inch or 7-inch freestyle and drones. The Samsung 40T cell is perfect for -range missions where you need both endurance and the ability to punch out of a dive.

3. What is the weight penalty when moving from 18650 to 21700 cells?

A single Samsung 40T 21700 cell weighs 70 grams. A standard 18650 cell weighs 48 grams.

4. What are the recommended charging parameters for the 40T?

To maximize cycle life, a standard charge rate of 2.0A is recommended. They can be fast-charged at 4.0A provided your charger supports capacity 21700 cells.

5. How does the 40T compare to the Samsung 30T or Molicel P42A?

The Samsung 40T has capacity than the 30T but slightly more voltage sag at extreme currents. The 40T and P42A are very similar. The 40T is often preferred for its consistency in multi-cell packs, for custom UAV long-range builds.