Traxxas 8400mAh 11.1V iD LiPo 3S 3-Cell 25C Battery w/iD Connector

  • Traxxas 8400mAh 11.1V iD LiPo 3S 3-Cell 25C Battery w/iD Connector
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Model: TRA2878X

This is the Traxxas Power Cell 11.1V 8400mAh 3S 3-Cell 25C iD LiPo Battery Pack with iD connector. This battery is perfect for the Traxxas 1/10 scale Slash 2WD VXL brushless, Slash 4x4, 1/10 Rally, XO-1, and Spartan boats!

Battery expansion kits are required in some models due to the size of this battery:

Slash 2WD: part TRA5827X
Slash 4x4 (standard chassis): part TRA5827X
Slash 4x4 Ultimate & Platinum w/LCG Chassis: part TRA7426X
1/10 Rally: TRA7426X
XO-1: part TRA6426X & TRA6427X


  • Semi rigid construction does not require a hard case and eliminates wire harness connectors that can loosen and fail
  • Engineered specifically to fit Traxxas models
  • New high current connector with gold-plated copper terminals and integrated balance connector
  • iD Auto Battery Identification allows Traxxas iD equipped chargers to automatically set and optimize charge settings for specific battery
  • MAXX cable high-efficiency 12 gauge silicone jacketed wire

Premium LiPo cells developed specifically for Traxxas feature oversized discharge tabs for maximum efficiency. The cells are hard-wired with 12-gauge Maxx Cable, eliminating the resistance and power-loss associated with plug-in wires. The pack's semi-rigid construction results in a firm, rugged, and compact pack that does not require a hard case, and the center-wire configuration assures a pinch-free fit in Traxxas vehicles. This product is covered under Traxxas' Lifetime Battery Exchange Program.


Configuration: 3S2P
Continuous Discharge: 25C (210A)
Max Burst Rate: 50C (420A)
Watt Hours: 93.24
Charge Rate: 1C (8.4A)
Max Charge Rate: 2C (16.8A)
Dimensions: 6.1 x 1.6 x 1.7" (155 x 42 x 44mm)
Weight: 21.9oz (622g)

Includes: Traxxas Power Cell iD 11.1V 8400mAh iD LiPo Battery with iD High-Current Connector


Traxxas ID LiPo charger

Some vehicles may require battery expansion kits

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