Samsung 40T 21700 4000mAh 35A Li-Ion Battery by Vapcell - Ultra High Discharge for FPV & UAV

Designed for the "Power-Hungry" mission profile, the Samsung 40T is a "balanced" cell that doesn't sacrifice discharge for capacity. While 18650 cells often struggle to maintain voltage under full throttle, the 21700 form factor allows for a larger internal surface area, resulting in significantly lower internal resistance (IR) and superior thermal management during high-current draw phases like take-off and punch-outs.

Key Technical Specifications:

• Power Output Mastery: Rated for 35A continuous 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 (21mm x 70mm) footprint offers roughly 50% more volume than an 18650, allowing for a 4000mAh energy density that extends mission range by 30-40% over standard LiPo builds.

• Authenticity Guaranteed: Sourced through Vapcell, these cells undergo strict batch testing to ensure they meet the Samsung Grade-A specification, crucial for preventing cell imbalance in multi-cell UAV packs.

• Durability for India: The 40T chemistry is robust enough to handle the thermal cycles of the Indian climate, maintaining a stable discharge curve even in ambient temperatures up to 45°C.

• Application: Ideal for custom Sub-250g long-range builds (in 2S/3S) or heavy 7-inch "Mountain Surfers" (in 6S1P/6S2P) where reliability and power are non-negotiable.

• Vapcell rewrap ensures authenticity and quality.

• Flat top design suits various applications.

• Rechargeable for economical, long-term performance.

• Low internal resistance for maximum efficiency.

• Superior quality for durable, safe operation.