Description
Battery model: 501855 (Replaces 401855)
Capacity: 2000mAh
Rated voltage: 11.1V (3S Li-Po, 3 cells in series)
Charge limit voltage: 12.6V (4.2V per cell)
Discharge rate: 25C
Battery type: Li-Polymer
Cell configuration: 3S1P (3 cells in series)
Discharge plug: SM-2P (2-pin SM connector)
Balance charge plug: XH2.54-4P (4-pin balance connector)
Dimensions: 62 × 18 × 15mm
Cable length (including plugs): approx. 45mm
Compatible with: RC drones, FPV quadcopters, electric toys, and 3S Li-Po devices
Package include: 1 x battery
Power up your RC drone or FPV quadcopter with this 501855 2000mAh 11.1V 3S 25C Li-Po battery. Designed as a direct replacement for the older 401855 model, this 3-cell pack delivers higher capacity and improved discharge performance. The 25C discharge rate provides the burst power needed for aggressive flight, flips, and responsive controls. The compact 62×18×15mm size fits most 3S battery compartments. Features a dual‑plug design: SM-2P for discharge and XH2.54-4P for balance charging. Built with grade A cells and multi-layer safety protection against overcharge, over-discharge, and short circuits. CE, RoHS, and UN38.3 certified.
501855 vs 401855 Upgrade: The 501855 is an upgraded replacement for the 401855 model, offering the same compact dimensions with improved cell quality and consistent 25C discharge performance. This is a direct fit for devices originally using 401855 battery packs.
Dual Plug Design Note: This battery includes both a discharge plug (SM-2P) and a balance charge plug (XH2.54-4P). The SM-2P connector powers your drone. The XH2.54-4P connector is for balance charging with a compatible 3S Li-Po charger — this ensures all three cells charge evenly for maximum lifespan.
Charging Instructions: Use only a balance charger designed for 3S (11.1V) Li-Po batteries. Set charger to Li-Po mode with 3S selected — full charge voltage is 12.6V. Recommended charge current: 2.0A (1C). Connect both the SM-2P and XH2.54-4P plugs during charging. Never leave the battery unattended while charging. Do not discharge below 9.0V (3.0V per cell).
Battery Care Tips: Avoid over-discharge — land your drone when you notice reduced power. Always balance charge for maximum battery life. Allow the battery to cool before recharging. Store at 40-60% charge at room temperature. If the battery swells or becomes hot, stop use immediately and recycle properly.
✅ Condition: Brand New – Never used, factory-tested quality
✅ 3S 11.1V 2000mAh 25C – High-performance power
✅ SM-2P + XH2.54-4P – Discharge + balance charge plugs
✅ Replaces 401855 – Direct drop-in replacement
✅ CE / RoHS / UN38.3 Certified
✅ 90-Day Warranty from delivery - Longer coverage than major platforms
✅ Ships in 3-7 days with tracking
🛡️ Shipping Protection Available at Checkout
✅ PayPal Buyer Protection included
⚠️ Low Stock Alert: Only 8 left in stock. Order now to avoid waiting.
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