A Main Hobbies Announces ProTek R/C 4S/5100mAh 35C Dual Hard Case Li-Poly Car Battery Packs
Chico, California, May 1, 2009 – A Main Hobbies today announced a ProTek R/C brand Lithium Polymer 4-cell dual hard case power battery pack for radio controlled cars, with 5100mAh of capacity and a true 35C constant discharge rate. Lithium Polymer batteries produce longer run-time with less weight than traditional NiMH cells and have no memory effect! They can be charged hours or days ahead of time and may be used and recharged limitless times per day.

This pack includes includes two integrated balance charge leads and a main power lead with a Deans style T-plug installed. The balance adapters included are 4-pin Align/E-Flite style XH balance connector. These battery packs are built using a hard plastic pack that is required for use at ROAR sanctioned tracks and events. The packs are designed to for racing 1/8 scale off-road electric vehicles, such as electric 1/8 buggies and 1/8 truggies.

These packs are constructed as two 2S battery packs wired in series. By constructing the packs as two 2S packs, similar to a saddle pack, you have more flexibility in determining the battery layout in your vehicle. You can either stack the two batteries on top of each other, or you can have one battery on either side of the vehicle.

The batteries will sell with a street price of $189.99. But don’t be fooled by the low price! These batteries perform as good as or better than the most popular name brand batteries on the market today.

2C Maximum Charge Rate!
This battery pack is designed to be safely charged at 2C, twice the normal 1C charge rate required for most Li-Poly battery packs. With a 2C charge rate, you can get these battery packs fully charged in only slightly more than half the time it will take to complete a 1C charge.

CRASH Protection Guarantee!
This battery pack is covered by the ProTek R/C manufacturer "Crash Protection Guarantee"! If you crash your vehicle badly enough to damage the battery pack, you can send the damaged battery pack back to ProTek R/C and purchase a replacement battery for 50% off the regular sale price!

You can find this product listed here:


  • Type: Lithium Polymer
  • Capacity: 5100 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: 1280g
  • Configuration: 4S1P
  • Dimensions (WxLxH): 46 x 137 x 24mm each pack
  • Maximum Charge Rate: 2C (10.1A)!
  • Maximum Continuous Discharge: 35C (178.55A)
  • Maximum Burst Discharge: 70C (357A) for 3 seconds
Please contact A Main Hobbies for pictures and artwork for print publications if the pictures were not sent to you via email.

Dealer Enquiries
Please direct dealer enquiries through HRP Distributing. You can find HRP Distributing on the internet at the following location: http://www.hrpdealer.com/

About A Main Hobbies
A Main Hobbies is a leading Internet retailer of radio controlled cars, trucks, helicopters and airplanes. Founded in early 2004, A Main Hobbies has rapidly become one of the largest Internet retailers in the country. A Main Hobbies prides itself on having the products customers’ need, when they need it, and providing first class customer service and product support. A Main Hobbies is a division of Good Time Hobbies, Inc., a privately held California Corporation. The company's Web address is http://www.amain.com.