This is a ProTek R/C 2S - 7.4 Volt, 2800mAh Li-Poly transmitter battery pack. This battery has been developed specifically for the Airtronics MT-4 and M11X transmitters. This light weight Li-Poly transmitter battery will help to reduce the overall weight of your transmitter, which is great for long main events! The overall weight will be significantly reduced when compared to a typical NiMH transmitter pack as this battery weighs a scant 105 grams! (Six typical NiMH AA batteries weigh approximately 168 grams). This battery will not only reduce the weight of your transmitter, you also get an incredible 9 to 10 hours of run time! How should the battery be inserted into the transmitter? A suitable foam should be used to pad the battery in the transmitter battery compartment to help hold the battery in place and prevent it from moving around. Place a piece similar in size to the battery into the transmitter battery housing under the battery, and then while pressing lightly on the battery, slide the cover over the battery. IMPORTANT:
CRASH Protection Guarantee! ProTek RC offers a 50% Damage Replacement program for one (1) year after original purchase date on all batteries that have been damaged due to impact, over-discharging, or improper charging that have not been modified or disassembled. The damaged battery will be replaced by a comparable battery at 50% off of its retail cost.