I'm going to buy a Turnigy 9x TX for my future arducopter and noted that the battery is not included.
Any recomendations?
I don't know if this is appropriate:
Thanks in advance!
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I've got a 3S 1800 mAh lipo in mine, and it works well.
- snipped the connector from the supplied battery pack
- soldered a JST connector to this lead. double check your polarity
- attach the battery via the JST connector
I had the junky 3S sitting around. It came with my Hawk Sky, but I use Zippy 2200s with that plane. Luckily, it is the perfect size for the battery compartment.
Voltage drop is less than 0.1V/hour. I'm careful not to let the battery go under 9V, but that hasn't been a problem so far.
On the downside, you don't get a beeping warning for low battery, but so far it hasn't been necessary. I'm not able to detect any heat buildup from the linear voltage regulators. If I would have had a spare 2S battery I would have used that one, but as I said I had a perfectly size 3S just going to waste.
Could this fit?
http://www.wowhobbies.com/transmitterbattery-lipo2200mah15cbatteryf...
Look at this form:
http://diydrones.com/profiles/blogs/turnigy-9x-9ch-transmitter
There is a whole discussion on battery options and mods.
You either need to make the change to the two resistors (RCModelreviews ref as before) or, better still, re-flash the software with the er9x code and just change the alarm point.
This is a great and cheap Tx but with loads of DIY mod options to be found on the web- changing the battery is just the first step.
I have a 9X and would not suggest that you use the battery you have linked. All the internals work on 5V so giving it the 12V is a total waste and would only be turned to heat. See: http://www.rcmodelreviews.com/tendollarbattery.shtml
I used all the instructions on the resistor part except that i'm using a normal 2cell from HK. It does require soldering and cutting off the plug on the old 8xAA battery holder but works really nice.... Using my TX for 1 to 2 months before it needs a recharge. If you need the inside dimensions of the battery bay to get the right battery i'll happily measure mine.
Kind regards
Gerrit