Parts/Batteries & charging/LiPo batteries/ProTek RC 2S High Power 30C Micro LiPo Battery (7.4V/240mAh) w/JST Connector
ProTek RC 2S High Power 30C Micro LiPo Battery (7.4V/240mAh) w/JST Connector
ProTek RC

ProTek RC 2S High Power 30C Micro LiPo Battery (7.4V/240mAh) w/JST Connector

Part # PTK-51854.8(6)
Where to buy
$10.99
AMain Hobbies
Seen Oct 12, 2026
$10.99Buy
Prices are as last seen at the store; stock is not tracked.

About this part

This is a Li-Poly 2S 240mAh battery pack from ProTek R/C. This super light weight micro size Li-Poly battery is designed to power small lightweight aircraft usually flown indoors. This lightweight Li-Poly 30C battery pack is designed to fit radio controlled planes and helicopters that use a 22 x 39 x 12mm 2S battery. These are a true 25C battery pack, and with a full 30C discharge capacity and light weight, these batteries are a power house for compatible helicopters and airplanes. This battery is also a perfect fit in the battery tray of the Orlandoo Hunter line of micro trucks!

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Specifications:

  • Capacity: 240 mAh
  • Weight: 18 grams (including wire and connector)
  • Li-Po cell arrangement: 2S1P
  • Nominal voltage: 7.4 Volts
  • Discharge capability: 30C continuous (6A), 50C max (12A)
  • Dimension(mm): 22 x 39 x 12mm
  • Connector: JST Style
  • Recommended Application: Small indoor type aircraft.

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. 

ProTek R/C is an AMain Sports & Hobbies brand

CA Residents Prop 65 Warning WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov Details...

Reviews4.8 · 6 reviews

gary nicholsonVerified owneron ProTek RC 2S High Power 30C Micro LiPo Battery (7.4V/240mAh)

Great batteries for 1RC Racing cars. They last much longer than the factory batteries.

2 found this helpful
Greg K.Verified owneron ProTek RC 2S High Power 30C Micro LiPo Battery (7.4V/240mAh)

These little monsters are awesome! I run these in all my micro crawlers and are good for 15-20 minutes of runtime. Best power to weigh ratio I have found to date.

1 found this helpful
Lee Tilton IIIVerified owneron ProTek RC 2S High Power 30C Micro LiPo Battery (7.4V/240mAh)

I actually use this battery to run one of my transmitters. Doesn’t last but so long but it does work. I don’t have any RC’s small enough to be powered by it.

William BecknerVerified owneron ProTek RC 2S High Power 30C Micro LiPo Battery (7.4V/240mAh)

Hard to find a 2S battery this small. This fit in my ECX24 Temper in the same spot as the 1S battery did and works great.

Mostly StockVerified owneron ProTek RC 2S High Power 30C Micro LiPo Battery (7.4V/240mAh)

Fits neatly in the Carisma battery trays. Fantastic difference with performance and run time

What reviewers say

Reviewers generally rate this 2S 7.4V 240mAh micro LiPo highly, with most reviews giving five stars. Owners report it outlasts factory batteries in 1RC Racing cars, performs well in micro crawlers with roughly 15 to 20 minutes of runtime, and fits in several small chassis including the ECX24 Temper and Carisma battery trays. Value for money is praised. One reviewer used it to power a transmitter and found runtime short, though it worked. Reviews are few in number, and none describe problems with fit or durability.

  • + Lasts longer than factory batteries
  • + Good runtime, about 15-20 minutes in micro crawlers
  • + Strong power-to-weight ratio
  • + Fits small chassis such as ECX24 Temper and Carisma trays
  • − Short runtime when used to power a transmitter
Summary generated from the reviews above.

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