How to change to lipo in a dx3r

[gaffer]

Hope someone can guide me on this, have seen a few people use small lipo batteries instead of nimh aa's in there transmitters. Can it be done on the spectrum dx3r? If so how easy(im pretty useless) is it to do? and which lipo will fit?

Any help and advice would be awesome.

Cheers

Stuart.

[coolcars782]

I dont think you can use lipos in it because there is no equivalent voltage, this means the voltage will be to high using the Lipos, causing damage to your dx3r
I wanted to do this with my dx3s, but we cant.

[gaffer]

Thanks for the answer, thats a real shame. Oh well nimhs it is then

cheers.

[Ferret]

I converted mine to LiPo.
You need to loosen all the DX3R's screws and then pry the two halves slightly apart. That will allow you to remove the AA battery tray and will leave a huge space for the LiPo of your choice. I cut the two wires that connected the battery tray to the transmitter and soldered a conector that fit my LiPo.

I used a 1s2p pack that I buit from two 1200 ma packs giving me a 2400 ma pack and so far it lasted much longer than my NiMhs.

The transmitter have no problems operating on 1s voltage and the fact that it stops transmitting at 3.5v assures that the cut off foltage of 3V will not be reached without notice.

I read on the net that someone installed a 2s pack with no ill effects to the ransmitter, but I didn't try is myself. I could have connected my two 1200 ma pack in series instead of in parallel, but it wouldn't have changed the total amount of energy in the pack and would have required some sort of low voltage cutoff.

Avner.

[coolcars782]

My bad, just going by what i found on another forum

[BagofSkill]

I imagine you could also use one of the 'step up' or 'step down' voltage regulators available for any BEC circuit to run either a 1 or 2 cell pack for any of the '4xAA' models.