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ATREK

Atrek 11.1V 4000mAh 35C 3S Hard Case LiPo Battery

Part no. 2140

3+ in stock5.0
4 reviews

$84.99

or 4 fortnightly payments of $21.25 with afterpay

Atrek 11.1V 4000mAh 3S LiPo Is The Ultimate Upgrade To Unlock Your Vehicle's Top Speed.

  • The Ultimate Power Upgrade for the Atrek 2WD Range
  • Unlock Your Top Speed Potential
  • 35C Discharge Delivers Blistering Acceleration
  • A Durable Hard Case Protects the Internal Cells
Select Female Connector

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  • 3+ in stock · Ships Friday · order by Friday

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  • 60-day returns · 12,000+ 5-star reviews · 03 5292 1101 ·

You'll need

Not included: 1x LiPo Safe Bag.

This item + 1 required$104.94

Frequently bought together

Overview

Step up to serious speed and power with the Atrek 11.1V (3S) 4000mAh LiPo battery. This is the ultimate power upgrade for the Atrek 2WD range, unlocking the 90 km/h+ top speed potential of your vehicle.

Encased in a durable hard shell to protect the cells from the rigours of off-road bashing, this battery is built for performance. The 4000mAh capacity offers a great balance of runtime and weight, while the 35C discharge rate provides the high-current punch needed for blistering acceleration and radical stunts.

Fitted with a high-current Deans connector and a standard XH balance plug, this battery is a direct drop-in fit for your Atrek vehicle and is compatible with a wide range of chargers. It's the perfect choice for experienced drivers looking to get maximum performance from their machine.

Features

  • The ultimate power upgrade for the Atrek 2WD vehicle range
  • Delivers 3S power to unlock the maximum speed potential of your vehicle
  • Features a durable hard case to protect the battery cells from impacts
  • 4000mAh capacity provides a great balance of high power and long runtimes
  • 35C discharge rate delivers a strong punch for blistering acceleration
  • Genuine Atrek RC Product

In the box

  • 1x Atrek 11.1V 4000mAh 35C 3S Hard Case LiPo Battery

You'll need

Specifications

Battery

Cell VoltageVoltage produced by each individual cell in the battery3.7V
Total Voltage11.1V
CapacityHow much energy is stored; higher mAh gives longer run times4000mAh
Discharge C RatingHow fast the battery safely delivers power to your motor35C
ChemistryBattery type that affects power, performance, and feelLiPo
ConnectorPlug style that determines what the battery connects toDeans
Length137mm
Width45mm
Height25mm
WeightInfluences handling, balance, and runtime272g
ConfigurationShape of the battery that determines how it fitsFlat
Main Connector Wire GaugeAmerican Wire Gauge - Wire thickness that affects how much current it carries12AWG
Case TypeChoose 'Hard Case' for protection or 'Soft Case' for weight savingHard Case
Battery Cable PositionWhere the battery’s wires exit for easier installationSide
Balance Lead ConnectorPlug used by chargers to balance the battery’s cellsJST
Stick SizeWhether the battery fits Tamiya-style stick‑pack traysNo
R.O.A.R ApprovedCertified for use in official R.O.A.R. sanctioned racing eventsNo

Compatibility

Reviews (4)

5.0

Based on 4 reviews

  • 5 stars4
  • 4 stars0
  • 3 stars0
  • 2 stars0
  • 1 star0
  • Adam W

    Verified buyer

    28 Sept 2026

    Didn't fit the car but will swap with a mate.

  • Mark C

    Verified buyer

    2 Sept 2026

  • Des B

    Verified buyer

    25 May 2026

    The power improvement is noticeable immediately. My RC cars are set at 50% while the kids learn to use them, but with these batteries the cars wheelie on command.

  • Brendan J

    Verified buyer

    21 Dec 2025

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