ProTek R/C Li-Poly Futaba, JR, Spektrum, KO, Transmitter Battery Pk (11.1V/2800)
ProTek R/C Li-Poly Futaba, JR, Spektrum, KO, Transmitter Battery Pk (11.1V/2800)

ProTek R/C Li-Poly Futaba, JR, Spektrum, KO, Transmitter Battery Pk (11.1V/2800)

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Your Price: $44.99
Part Number: PTK-5173
Availability: In Stock.

This is the ProTek R/C Li-Poly 2800 Transmitter Battery Pack and is intended for use with Futaba, JR, Spektrum and KO Propo Transmitters that use a 4x4 AA Battery Tray. This light weight Li-Poly transmitter battery is designed to reduce the overall weight of your transmitter, which is great for those long main events or long flying days! The overall weight of your transmitter will be significantly reduced over the use of typical NiMh receiver packs (155 grams compared to 225 grams for eight typical NiMH AA batteries!). Try to hold a pack of eight traditional AA size batteries and compare it with this Li-Poly Transmitter pack. The feeling is just awesome, and you get an incredible 9 to 10 hours of run time! 

Aircraft Transmitter Compatibility

This battery pack is compatible with some Futaba and JR aircraft and helicopters transmitters with modifications. For Futaba air transmitters, you will need to swap the polarity of the positive and negative leads on this battery, as the KO radios use the reverse polarity compared to Futaba radios. You can use a small Exacto style #11 blade to pop up the connectors holding the pins in place, so you can remove them and swap them around.

For JR aircraft transmitters that use the small white battery connector, you can use the ProTek R/C transmitter adapter (PTK-5221) to adapt this battery for some JR air transmitters. Once again you will have to follow the instructions above to reverse the polarity of the power leads on this battery to use it in a JR air transmitter.

Runtime:
Don’t be thrown off by the capacity rating of Li-Poly battery packs, as you will get awesome runtime out this pack! Given that Li-Poly battery packs provide a higher nominal voltage (11.1V nominal), the actual capacity of the battery pack when compared to a typical NiMH battery pack (9.6V nominal) is about 15% more than the rated value (so this pack would be about the same as a 3200mAh NiMH pack in total capacity).

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 prevent the battery 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. A second piece of foam can be used if you wish to sandwich the battery between the two pieces of foam as necessary for a solid fit.

IMPORTANT:

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 below 9.0V.
3) Read the instructions carefully before operating this battery.

Specifications:

  • Voltage: 11.1 Volts
  • Capacity: 2800 mAh
  • Chemistry: Lithium Polymer
  • Transmitter Run time: 9 to 10 hours
  • Balance Charge Plug: XH
  • Charge Rate: 1C
  • Discharge Plug: JR/Sanwa/Ko
  • Dimension (LxWxH): 97x30x26mm
  • Weight: 155g

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