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

Yokomo RPB-39E2K - RPX Racing Performer Ultra Series Plastic StickPack 7.4v 3900mAh 100C
Price:
USD$75.00
Brand:
Yokomo
Model:
YOKRPB-39E2K
Write a review

High-rate 2S StickPack LiPo for Touring and Drift

The Yokomo RPX Racing Performer Ultra YOKRPB-39E2K is a 7.4V 3900mAh 100C StickPack LiPo designed for RC-scale touring and drift use where consistent power delivery and compact packaging matter. The pack uses a plastic stickpack shell and a 5mm positive connector specified for series 5000/6000 to help maintain solid electrical contact and reduce the chance of reverse polarity connection during handling.

Physical measures are provided for fitment checks: Size: 92.5mm x 46.5mm x 18.4mm and Weight: 161g. The pack's stick profile and connector placement make it suitable for tight battery bays in 1/10 touring and drift chassis, and the stated 100C rating indicates a design focus on high discharge capability for load-hungry motor and ESC setups.

Installation notes: orient the 5mm positive connector to match your vehicle harness and confirm balance lead access when fitting into the chassis. Use a compatible balance charger and adhere to safe charging practices; check connector polarity before powering the ESC or other electronics to prevent damage.

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 tuners and racers who balance pack size, weight and high discharge requirements, this StickPack provides a compact option for demanding 2S applications.
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 should I use for this 7.4V pack?

Use a balance charger that supports 2S LiPo cells and follow the charger's recommended charge rate and safety procedures, monitoring temperature during charge.

Does the 5mm connector prevent reverse connection?

The pack uses a 5mm sized positive connector designed to improve contact and reduce the chance of reverse polarity during assembly, but always verify polarity before connecting to an ESC.

Will this pack fit common 1/10 touring and drift battery bays?

The published dimensions (92.5 x 46.5 x 18.4mm) and stickpack shape are intended for compact bays; confirm these measurements against your chassis tray before installation.

How does the 100C rating affect performance?

A 100C discharge rating indicates the pack is specified for higher current draws common in competitive setups, which can support aggressive motor and ESC combinations without excessive voltage sag.

Copyright © 2008-2026 rcjaz.com All rights reserved