ProTek RC 4S "Supreme Power" Li-Poly 70C Hard Case Battery Pack (14.8V/6400mAh) (ROAR Approved)

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This is the ProTek R/C "Supreme Power" 4S - 14.8V, 6400mAh, 70C Lithium Polymer hard case battery pack. This pack includes includes an integrated balance charge lead with a Deans style T-plug installed for a convenient connection capable of handling extremely high amp rates. While the 5-pin Align/E-Flite style XH connector provides compatibility with one of the most common varieties of balance tap connection. 

These battery packs are built using a hard plastic case that is required for use at ROAR sanctioned tracks and events. The packs are designed specifically for racing 1/8 scale off-road electric vehicles, such as electric 1/8 buggies and 1/8 truggies.

Unlike most other Lithium Polymer batteries, these batteries can be charged at up to 2 times the rated current, or 2C! If your charger is capable, you can charge these batteries at 12.8A!

CRASH Protection Guarantee!
ProTek RC offers a 50% Damage Replacement program for one (1) year after original purchase date on all batteries that have been damaged due to impact, over-discharging, or improper charging that have not been modified or disassembled. The damaged battery will be replaced by a comparable battery at 50% off of its retail cost.

Click Here To Download Product Manual


  • ROAR Appoved!
  • Type: Lithium Polymer
  • Capacity: 6400 mAh
  • Voltage: 14.8V nominal
  • Connector Type: Deans T-Style with 12AWG wire
  • Balancer Type: Align/E-Flite compatible (XH)
  • Number of Cells: 4
  • Weight: 653g
  • Configuration: 4S2P
  • Dimensions (WxLxH): 50.8x137.5x49.1mm
  • Maximum Charge Rate: 2C (12.8A)!
  • Maximum Continuous Discharge: 70C (448A)

1) DO NOT leave the battery in your model when charging
2) DO NOT leave unattended when charging
3) ALWAYS balance charge the battery
4) ALWAYS use a LiPo charging bag
5) YOU MUST use a Li-Poly specific charger to charge the pack (NiMH or NiCD only chargers WILL NOT WORK!)
6) YOU MUST not over discharge the Li-Poly battery pack
7) READ & UNDERSTAND the instructions carefully before operating this battery

NOTE: When using high energy Li-Polymer Batteries, please do not over-discharge or over-charge batteries as this will result in over heated batteries. Discharging capacity can't exceed 80% of the max capacity of the pack after full charging to ensure a good cycle performance. It is recommended to fully charge a brand new battery before using and only discharge the battery 50% for first 5 cycles. Always monitor race time and/or set a low voltage warning on ESC (End voltage cannot be lower than 3.2v per cell). Do not use the battery that has too low a voltage.

Do not expose batteries to sunshine or store/charge batteries at the temperature above 35C or in a closed car. The high temperature environment could cause damage to the pack or make it burst. If the battery becomes hot while fast charging, high current discharging or racing, do not charge the battery until it has cooled completely. Wait about 20 mins, then inspect prior to recharging.

Click Here For Warranty Information

ProTek R/C is an brand

This product was added to our catalog on December 20, 2011.

Bobby Pettit
Verified Owner
Thursday, Feb 2 2012 (about 4 years ago)
ProTek RC 4S "Supreme Power" Li-Poly 70C Hard Case Battery Pack (14.8V/6400mAh) (ROAR Approved)
This battery was in both our e-buggy and e-truggy for the Dialed Inc race last weekend. Both vehicles won and there was power to share at the end of the 10 minute mains!
Verified Owner
Sunday, Oct 14 2012 (about 4 years ago)
ProTek RC 4S "Supreme Power" Li-Poly 70C Hard Case Battery Pack (14.8V/6400mAh) (ROAR Approved)
Was concerned when I first got this battery but after the first use I love it. It holds strong threw out the entire run, after a 10 min. run it only uses 1600mah. I will recommend this to any one looking for a new 4s battery!! Thanks Amain.
Austin Blair
Verified Owner
Friday, Feb 1 2013 (about 3 years ago)
ProTek RC 4S "Supreme Power" Li-Poly 70C Hard Case Battery Pack (14.8V/6400mAh) (ROAR Approved)
Plain and simple these lipo batteries work great. I first used the ProTek lipos back in 2010 at the ROAR 1/8th electric off-road nationals. I was having some initial problems making a 10 minute race. Once I switched over to ProTek lipos I had more power and way more run time. Plus with the ProTek warranty program, you cannot go wrong.