I have a Futaba 6ex and the battery life is not to long was wondering if i could update to a better battery and if so what
<br type="_moz" />

How long is Not Too Long?

I charged up the 6EX 600 mah transmitter batteries with the wall wart at 70 ma's for 13 hours and mine stays on for 3 hours and 5 minutes just playing with the sticks.

Tower recommended using 1650 NiMH batteries for that transmitter but I'm sure you can get the same type of battery cheaper somewhere else.

http://www3.towerhobbies.com/cgi-bin...?&I=LXDXC8&P=0

I use the 2500 mAh in my futabas.

try this seller on ebay. All of our club members flys these.
item# 380191949964
about 15 a piece shipped

I took one of my transmitters to the local hobby shop and had futaba J-fittings put on the transmitter and the battery, this allows it to be changed with a spare battery set up the same way. this also allows the batterys to be cycled on my hobbico charger/cycler. just for a little piece of mind if you worry about your batterys condition[8D]

What battery in it?Certainly you can put in another of higher capacity if needed,(which it shouldn't need). A TX battery of 1500Ma normally should give around 4-5 hours of use when fully charged.

bbrown,

First thing I would try is cycling your suspect batteries a few times. If you don't have a cycler, you can do this with your wall charger a stopwatch or timer and some patience. Fully charge your batteries overnight for at least 18 hours. Then turn on your transmitter and start your timer. When the low battery alarm goes off, note the time. As previously noted, this should be in the range of 3 - 4 hours. Repeat this procedure and see if there is any notable difference.

Cheap Battery Packs will make replacement packs and they are great to deal with. They have 5 different types of cells that they can build that pack for.
http://www.cheapbatterypacks.com
Select Super Listing, tx, Futaba, flat style (verify this on your transmitter but I looked at mine),

If you stay with NiCd you can stick with your wall charger. Any other cell chemistry will require a more exotic charger.

Depending upon your battery capacity and your wall warts output whether or not your battery will be fully charged. A 50MA output wall wart will not ever fully charge a 2000MA pack for example.

I use the Hobbico 1650 NiMH battery packs in my Futaba 9C and 6DA transmitters. They work great. I can still use the wall warts to charge them and it almost triples the time available for flying and ground work. Put a Triton Jr. in your car and you can fly indefinately by rotating packs.

If you discharge the batteries in this fashion, make sure to extend the transmitter antenna (if it's a 72 MHz) part way so as not to risk overheating the final amps.

http://www.rc-warbirds.com/product_i...roducts_id/907

try this... its a 9.9V 3S Lipo LiFe battery... it peak charges to 10.8V... and can also charge it with normal charger which you use with existing battery... it contains circuitry for that...

Not true, as long as the current is in excess of the self discharge current, the battery will become fully charged. Where do you think that current is going if not charging the battery? True, it will take longer, roughly about battery capacity divided by charging current times 1.2 hours.

ok the battery in the transmitter is a futaba nt8f6008 and it is a 9.6 volt with 600 mah i think it might be the battery guys think i might need more mah

btw what is a cycler

A cycler is a device that discharges batteries at a rate simulating an operational load on the pack. When the battery voltage drops to a (generally user selectable) minimum voltage, it stops the discharge and starts charging the batteries. The discharge function is coupled with a timer so you know how long the batteries would last under operational conditions.

Here is a link to one, there are many on the market.
http://www3.towerhobbies.com/cgi-bin...?&I=LXMAH9&P=0