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Thrust 14.8V 850mAh 35C 4S Battery: EC3

Item No. EFLRB8504S35
Brand Logo
4 out of 5 Customer Rating

Thrust 14.8V 850mAh 35C 4S Battery: EC3

Item No. EFLRB8504S35
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Product Details

Key Features

  • Powerful 35C continuous discharge rating
  • Available in four capacities; 850, 1000, 1300 and 1800mAh
  • Race-ready 4-cell configuration
  • Heavy-duty lead wire with durable silicone insulation
  • Lightweight for optimum flight performance
  • Flexible silicone insulated balance wires
  • Compact construction with ultra-short leads
  • No soldering required
  • Assembled with EC3 main and JST balance plugs
  • The ideal battery choice for the Blade® Vortex 250 Pro FPV quad-racer


The E-flite® brand is proud to introduce a new series of 4S Li-Po battery packs specifically built for the FPV Racer. Thrust Series FPV Racing batteries are ideal for the racing platforms from 150- to 285-size such as the Blade Vortex 250 Pro that demands the power 4S, 14.8V Li-Po packs can provide.

Compact E-flite® Thrust Series lithium polymer batteries are rated at 35C to offer an excellent power-punch without a major weight penalty. Four capacity sizes are available from 850mAh to 1800mAh with the 1000mAh and 1300mAh packs rounding out the middle of the range. These batteries come with the popular EC3 connector with silicone insulated wire for a level of durability that can be appreciated at all performance levels. The output and balance leads are short to make installation on FPV racers as sleek as possible. Like the popular line of E-flite® High-Power Li-Po batteries, its JST-XH balance connector is compatible with a wide range of popular chargers such as those from Orion® and Dynamite®. A 3C charge rating means that these batteries can be fast charged safely. If you're looking for a compact 4S Li-Po pack to suit your electric powered aircraft, choose an E-flite Thrust Series battery and go for it!

Product Specifications

Application FPV Racing Quadcopter
Battery Balance Connector JST_XH
Battery Voltage 14.8V
Capacity 850mAh
Cell Configuration 4S1P
Charge Protection Circuitry No
Connector Type EC3
Hard Case No
Maximum Charge Current 3.0A
Maximum Charge Rate 3C
Maximum Continuous Discharge Current 29.75A
Maximum Continuous Discharge Rate 35C
Normal/Standard Charge Current 0.85A
Normal/Standard Charge Rate 1C
Product Height 1.04 in (26.5mm)
Product Length 2.91 in (74mm)
Product Weight 3.70 oz (105 g)
Product Width 1.04 in (26.5mm)
Shape Rectangular
Watt Hours 12.58Wh
Wire Gauge 16 AWG