

PTK-5141-22
2S 50C 1100mAh Losi Mini T/B & JRX2 LiPo Battery w/EC2 Connector
Protek RC 2S 50C 1100mAh Losi Mini T/B & JRX2 LiPo Battery w/EC2 Connector
ProTek RC Losi Mini T/B & JRX2 Performance Battery Upgrade
The ProTek R/C 2S 50C 1100mAh Losi Mini T/B and JRX2 LiPo Battery is built with performance in mind. Using Silicon Graphene technology this battery packs a punch with it's 50c discharge rating! Designed to work with the Losi Mini T, B and Mini JRX2 this pack offers extended runtimes with it's larger 1100mah capacity. Equipped with an EC2 style connector makes this a plug in option with no need to mess with adapters or to get out the soldering iron. With more time on the track and the ability to dish out the power this Protek battery pack is an excellent upgrade for your Mini T, B or JRX2 vehicles.
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, high discharge ratings, incredibly high charge rates and a variety of models to choose from, ProTek R/C Graphene packs are perfect for racers and bashers that demand the absolute best.
Features:
- Direct fit for Losi Mini B, T and JRX2 vehicles
- More runtime, with a dramatic increase in punch
- Silicone Graphene can handle more abuse and deliver more current than a standard LiPo battery
- Improved efficiency, lower operating temperatures, and lower internal resistance!
- Factory installed EC2 plug
IMPORTANT LITHIUM POLYMER SAFETY INFORMATION
- DO NOT leave a battery in your model when charging
- DO NOT leave lithium batteries unattended when charging
- ALWAYS balance charge lithium battery
- ALWAYS use a LiPo Safe charging bag/box
- YOU MUST use a Li-Poly specific charger to charge lithium batteries (NiMH or NiCD only chargers WILL NOT WORK!)
- YOU MUST not over discharge lithium battery packs
- 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 overheated 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 the 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 a battery that has too low a voltage. Do not expose batteries to sunshine or store/charge batteries at temperatures 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 it until it has cooled completely. Wait about 20 mins, then inspect prior to recharging.
Pairs well with
Easy to use for beginners
Durable build for long-lasting fun
Quick recharge and extended range for all-day play
Perfect for pools, lakes, and calm rivers
Product details
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Engineered for Speed. Built for Control.
Our RC vehicles and parts are crafted with cutting-edge tech and tested for durability. From high-speed drones to rugged RC cars and boats, every product delivers serious fun and unmatched reliability.
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Got Questions? We've Got Answers
What types of RC vehicles do you sell?
We offer a wide range of RC vehicles including airplanes, drones, helicopters, cars, trucks, boats, and a full selection of parts and upgrades for each.
Are your products ready to run (RTR) or require assembly?
Most of our models are RTR (Ready to Run) or RTF (Ready to Fly), meaning they include everything you need out of the box. Some kits may require minimal assembly—check the product description for details.
Do you offer replacement parts?
Yes! We stock replacement parts for most models we sell. If you’re not sure which part you need, contact our support team and we’ll help you find the right match.
How long does shipping take?
Orders typically ship within 1–2 business days. Delivery time depends on your location, but most customers in the U.S. receive their orders within 3–7 business days.
Do you ship internationally?
At the moment, we primarily ship within the U.S., but international shipping is available on select items. Please contact us for a custom quote.
























