ProTek RC "Drag Race" 2S 120C Si-Graphene + Shorty LiPo Battery (7.4V/5500mAh) w/5mm Connectors

Read Reviews
Write a Review
ProTek RC "Drag Race" 2S 120C Si-Graphene + Shorty LiPo Battery (7.4V/5500mAh)
Back Order Now
You may back order this item and it will ship when it arrives.
FREE Shipping Eligible! Learn More
Price: $99.99

Please Log in to receive a notification when this item arrives in stock.

Save In List
This item earns up to 100 VIP Reward Points Learn More

The ProTek R/C Drag Race 2S 120C Si-Graphene + Shorty LiPo Battery was developed for Drag Racers whose clubs do not allow the use of LiHV batteries. This pack delivers equal performance to the PTK-5114-20 6100mAh Shorty charged at 7.4V, but is legal for use when LiPo batteries are mandatory.

Weighing approximately 210 grams, the Drag Race Shorty is lighter, while offering increased capacity compared to a standard Shorty LiPo. Graphene + 120C LiPo batteries take that a step further with more power and lower internal resistance when compared to the previous ProTek Graphene packs! Additionally, when compared to standard LiPo, Silicon Graphene cells deliver improved efficiency, lower operating temperatures, lower internal resistance, better run time, increased cycle life and increased voltage throughout the cycle.

Lab testing has shown that ProTek R/C Silicon Graphene packs have double the cycle life when charged at 1C rates, and can be charged at higher amp rates, with less risk of damage to the pack. More importantly, the discharge curve is flatter, meaning the cells maintain higher voltage throughout the discharge cycle with no significant drop off. Additionally, when compared to conventional LiPo batteries, Silicon Graphene batteries are lighter, providing a higher capacity per gram ratio. With 7.4V nominal voltage, 120C discharge ratings, incredibly high charge rates and a variety of models to choose from, ProTek R/C 120C Graphene + packs are perfect for racers and bashers that demand the absolute best. 

Features:  

  • Developed for drag racers that are limited to using LiPo batteries at specific events 
  • Silicone Graphene offers improved power to weight ratio and efficiency, with lower operating temperatures, lower IR and lower overall CG  
  • Silicone Graphene provides increased run time, increased cycle life and increased voltage throughout the cycle than a standard LiPo cell
  • Silicone Graphene can handle more abuse and deliver more current than a standard LiPo cell
  • Graphene offers increased capacity gram for gram when compared to standard LiPo cells  
  • 10C max charge rates - 1C charge rate recommended for longest life
  • 7.4V nominal voltage
  • 5mm bullets and 5mm to 4mm bullet adapters included  
Battery Model Drag Pack  
ROAR Approved Pending      
Type Silicon Graphene   
Voltage 7.4V nominal  
Capacity @7.4V  
5500mAh  
Watt Hour @7.4V  
40.7 Wh 
Weight  
212g ±10g     
Connector Type  
5mm Bullet  
Balance Connector  
2mm Bullet  
Number of Cells 2 Cell  
Configuration 2S2P  
Dimensions (WxLxH) 47x96x25.1mm  
Maximum Charge Rate 10C (55A)  
Burst Current  
120C  

View Manual Icon small Warranty Info Icon small

Includes:

  • (1) ProTek R/C Battery
  • (2) 5mm to 4mm Bullet Reducers  
  • (2) 5mm Bullet Connectors
  • (1) 2mm Balance Bullet Connector

LITHIUM POLYMER SAFETY INFORMATION  

IMPORTANT:  
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 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.

This product was added to our catalog on January 21, 2021

Kattmandu
Verified Owner
Wednesday, Sep 21 2022 (about a year ago)
ProTek RC "Drag Race" 2S 120C Si-Graphene + Shorty LiPo Battery (7.4V/5500mAh)
Stay away from this one. Battery got one use and then it was dead. It won't even show a voltage. It's just completely dead, a paper-weight. This is not my first LiPo battery. I have plenty of them. I balance charge all of them after every use. I never let them drop below 3.2v per cell.
Lawrence Tipton
Verified Owner
Tuesday, Sep 20 2022 (about a year ago)
ProTek RC "Drag Race" 2S 120C Si-Graphene + Shorty LiPo Battery (7.4V/5500mAh)
The “on sale” item was actually discontinued. The LIPO was damaged on arrival, the battery had puffed. Quite dangerous. I found out that this particular model was known to have issues with puffing and failures and has been replaced with another model. I received a refund for the one that shows damage. The other, I still have but do not trust. Oh, I left a message with the manufacturer over two week ago regarding the issue with this model. No reply.
FRANCISCO S PEREIRA JR
Verified Owner
Tuesday, Aug 16 2022 (about a year ago)
ProTek RC "Drag Race" 2S 120C Si-Graphene + Shorty LiPo Battery (7.4V/5500mAh)
Really nice. Recommended.
Affordable and with a nice performance.
Chris Lopez
Verified Owner
Tuesday, Mar 9 2021 (about 3 years ago)
ProTek RC "Drag Race" 2S 120C Si-Graphene + Shorty LiPo Battery (7.4V/5500mAh)
Well made product, and really light for drag racing!!
Travis Chambliss
Verified Owner
Wednesday, Sep 29 2021 (about 2 years ago)
ProTek RC "Drag Race" 2S 120C Si-Graphene + Shorty LiPo Battery (7.4V/5500mAh)
Have ran this on my drag car a couple times running a maclan drk160 and 4.5t. Both cells stay balanced great battery.
Patrick Audet
Verified Owner
Wednesday, Sep 29 2021 (about 2 years ago)
ProTek RC "Drag Race" 2S 120C Si-Graphene + Shorty LiPo Battery (7.4V/5500mAh)
Nice battery delivers a great punch keeps going a long time nice finish
Tim Grantham
Verified Owner
Wednesday, Aug 4 2021 (about 2 years ago)
ProTek RC "Drag Race" 2S 120C Si-Graphene + Shorty LiPo Battery (7.4V/5500mAh)
Great pack Highly recommend ddddddddddddddddddddddds
Brent B
Verified Owner
Wednesday, Jul 5 2023 (9 months ago)
ProTek RC "Drag Race" 2S 120C Si-Graphene + Shorty LiPo Battery (7.4V/5500mAh)
Purchased this battery in September of 2022. When I received it, it was dead. I was able to bring it back to life by charging it for a few minutes as a NiCd, then balance charge it until it was fully charged. It worked fine after that. Over the winter I did a storage charge. I went to use it this Spring and it took a balance charge with no problem. I went to use it in my Traxxas Drag Slash and I got maybe 2 decent passes with it and it dies. It is also starting to get puffy like everyone else states is happening to theirs. All of my other Lipo batteries I have had for 2 years or longer last a lot longer and haven't given me this many problems. I would not recommend this battery.
Jonah B
Verified Owner
Thursday, Sep 30 2021 (about 2 years ago)
ProTek RC "Drag Race" 2S 120C Si-Graphene + Shorty LiPo Battery (7.4V/5500mAh)
"Mo Powa Baby" - This pack rips. DR10 with a XR10 Pro (Stealth), a Hobbywing 4.5T and a Protek 160T servo. Compared to the other pack I was using, this pack stayed cooler during a pull. Super happy will buy again.
Justin Qualls
Thursday, Aug 5 2021 (about 2 years ago)
ProTek RC "Drag Race" 2S 120C Si-Graphene + Shorty LiPo Battery (7.4V/5500mAh)
Was shipped at 3.80 v on both cells ,perfect storage voltage . Iv made about 200 passes in my dr10 with the mamba x and 7700kv setup and it performs flawlessly
MICHAEL MCELLIGOTT
Verified Owner
Friday, Mar 26 2021 (about 3 years ago)
ProTek RC "Drag Race" 2S 120C Si-Graphene + Shorty LiPo Battery (7.4V/5500mAh)
It’s a battery.
Works as it should. Never will understand why wire is not included, just bullets.