ProTek RC 1S "Supreme Power" Li-Poly 40C Hard Case Battery Pack (3.7V/5000mAh) (ROAR Approved)

ProTek RC 1S "Supreme Power" Li-Poly 40C Hard Case Battery Pack (3.7V/5000mAh) (ROAR Approved)
Price: $49.99
Discontinued Online
This item is discontinued and no longer available for purchase. You may want to search our site for a similar item.

This is the ProTek R/C "Supreme Power" 1S 5000mAh, 40C Lithium Polymer hard case battery pack. This pack includes a Deans style T-plug installed.

These battery packs are built using a hard plastic pack that is required for use at ROAR sanctioned tracks and events, are thin enough to fit into all pan cars, and can be secured in vehicles designed for side by side 4 cell NiMH race packs.

These ProTek R/C battery packs can be used in any application where you need 4-cell NiMH race packs, such as 1/12th, or 1/10th scale electric pan cars. These packs are significantly lighter when compared to regular NiMH race packs, for lighter overall vehicle weight providing significantly improved acceleration.

Note: Some vehicles may require some re-balancing if the light weight of these batteries cause some handling changes. To get the vehicle to balance correctly, add some weight to the battery side of the vehicle.

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 up 10A!

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 A Main Hobbies and purchase a replacement battery for 50% off the regular sale price!


  • ROAR Appoved!
  • Type: Lithium Polymer
  • Capacity: 5000 mAh
  • Voltage: 3.7V nominal
  • Connector Type: Deans T-Style with 12AWG wire
  • Balancer Type: None
  • Number of Cells: 1
  • Weight: 153g with connector and leads
  • Dimensions (WxLxH): 46x93x19mm
  • Maximum Charge Rate: 2C (10.0A)!
  • Maximum Continuous Discharge: 40C (200A)
  • Maximum Burst Discharge: 80C (400A) for 3 seconds

1) You will need a Li-Poly specific charger to charge the pack (NiMH or NiCD only chargers WILL NOT WORK!)
2) You must not over discharge the Li-Poly battery pack.
3) Read 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 35°C 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.

ProTek R/C is an A Main Hobbies brand.

This product was added to our catalog on November 19, 2009