Yokomo YOKRPB-39E2K RPX Racing Performer Ultra 7.4V 3900mAh 100C StickPack LiPo  [YOKRPB-39E2K]

Yokomo RPB-39E2K - RPX Racing Performer Ultra Series Plastic StickPack 7.4v 3900mAh 100C
Price:
NZD$128.54
Brand:
Yokomo
Model:
YOKRPB-39E2K
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Compact 2S StickPack Built for Track and Drift

The Yokomo RPX Racing Performer Ultra YOKRPB-39E2K is a 7.4V 3900mAh 100C StickPack LiPo intended for 1/10 touring and drift cars where a slim profile and repeatable power delivery matter. The pack features a plastic stickpack shell and a 5mm positive connector specified for series 5000/6000 to help ensure dependable contact and to lower the chance of incorrect polarity connections.

Check physical measurements for fitment: Size: 92.5mm x 46.5mm x 18.4mm and Weight: 161g. The stick form factor and connector placement make the pack suitable for confined battery bays, and the 100C rating points to strong discharge ability for high-demand motor and ESC combinations.

Fitting advice: position the 5mm positive connector to match your vehicle harness and verify balance lead routing prior to securing the pack. Always use a compatible balance charger and follow established LiPo safety and charging practices.

Specifications Overview

  • Item: RPX Racing Performer Ultra StickPack
  • Material: Plastic stickpack shell
  • Model Number: YOKRPB-39E2K
  • Compatibility: RC car use, 2S voltage configurations
  • Voltage: 7.4V
  • Capacity: 3900mAh
  • Discharge Rating: 100C
  • Connector: 5mm positive connector for series 5000/6000
  • Dimensions: 92.5mm x 46.5mm x 18.4mm
  • Weight: 161g

This StickPack is a compact option for racers seeking a balance of low profile and high discharge for 2S setups.
Remark :
Due to limited stock availability, please notice that some Yokomo items may have to order from the factory and the ready time is around 4-6 weeks. Customer purchases the item is assumed to accept the waiting time which allows us to order directly from the manufacturer if the item is out of our warehouse.

How should I store this LiPo between events?

Store the pack at a safe storage voltage using a balance charger or storage mode, keep it in a cool, dry place and inspect for swelling or damage before reuse. Routine storage at around 3.8V per cell helps prolong cycle life.

Can charging style affect the pack lifespan?

Yes. Charging at conservative currents and avoiding excessive peak charge rates will reduce stress on cells and typically extend overall cycle life; always follow charger guidance for 2S LiPo chemistry.

Any tips for routing the balance lead when installing?

Route the balance lead so it is accessible without straining contacts or trapping wires under the battery. Confirm the lead reaches the charger port on your chassis without tugging the pack out of position.

Is this pack suited to high-power brushless setups?

The 100C discharge rating indicates the battery is specified for high current draws typical of powerful brushless motor and ESC pairings, but always match the pack to your specific system and monitor for voltage sag under load.

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