Yokomo YOKRPB-39E2K 7.4V 3900mAh 100C Plastic StickPack LiPo for 2S RC Touring and Drift  [YOKRPB-39E2K]

Yokomo RPB-39E2K - RPX Racing Performer Ultra Series Plastic StickPack 7.4v 3900mAh 100C
Price:
CAD$103.59
Brand:
Yokomo
Model:
YOKRPB-39E2K
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High-discharge 2S StickPack for Touring and Drift Performance

The Yokomo RPX Racing Performer Ultra YOKRPB-39E2K is a 7.4V 3900mAh 100C StickPack LiPo built for 1/10-scale touring and drift applications where steady power delivery and a slim profile are required. The pack uses a plastic stickpack shell and a 5mm positive connector specified for series 5000/6000 to promote solid contact and to lower the risk of reverse polarity when handling connectors.

Physical dimensions are listed for fit checks: Size: 92.5mm x 46.5mm x 18.4mm and Weight: 161g. The stick profile and connector placement suit tight battery bays commonly found in touring and drift chassis, and the 100C rating indicates this pack is specified to support high discharge currents for demanding motor and ESC setups.

Installation notes: align the 5mm positive connector with your vehicle harness and confirm balance lead access before seating the pack. Use a proper balance charger and follow safe charging procedures; always verify connector polarity before applying power to the ESC or other electronics.

Technical Specifications

  • 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

For drivers and tuners balancing compact size with high discharge capability, this StickPack delivers a concentrated option for demanding 2S use.
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.

What charger settings work best for this 2S pack?

Charge this 2S pack with a balance charger set for 2-cell LiPo chemistry. Use the charger manufacturer recommendations for charge current (typically 1C for routine charging) and keep an eye on cell temperature while charging.

Is the 5mm connector keyed to reduce wrong connections?

The 5mm positive connector size is chosen to improve contact area and to make incorrect mating less likely, but you should still visually confirm polarity before connecting to the ESC.

Will this stickpack fit typical 1/10 touring and drift trays?

The published dimensions (92.5 x 46.5 x 18.4mm) are intended for compact bays; measure your chassis tray and compare these figures to ensure clearance and balance lead access before installation.

How does a 100C rating influence on-track performance?

A 100C specification signals the pack can sustain higher continuous discharge currents, which reduces voltage sag under heavy load and better supports powerful motor and ESC combinations during aggressive driving.

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