Tx Batteries

[birdy]

   The time has finally come to buy my futaba 6exp some new batteries to replace the original 700mah ones - they only gave half an hours of use after 7 hours charging today.

   So, what to get?

 

   And then question number 2 - is it ok to cycle the batteries via the side port of the tx? I was looking at the "instant" charge retaining batteries and apparently you should cycle rather than top them up, and I don't really want to have to remove the batteries from the tx to do this.

 

Thanks,

 

Birdy 

[Frank Skilbeck]

Not sure on the exp, but may radio's have a diode in the charging circuit for protection, but that stops you from cycling them in situ. But you don't need to cycle them every time so taking them out isn't a big issue.

[Pete B]

I got my Optic 6 battery from here, Dusty. Good choice, quick service, cheap postage

 

Pete

[Bucksboy]

I bought the Eneloop battery pack from my local shop, they are the Overlander ones. They are absolutely fantastic, they retain their charge easily. Highly recommended! I paid ?25 for the pack by the way.

[Lee Damms]

I got fed up of my 6exa 2.4ghz transmitter batteries going flat at the field and found I could'nt use my field charger (no luck with ripmax) so onto the net and found that the protection diode could be bypassed,  I fitted a 1.1amp polyfuse across the diode works a treat the diode position was identified by http://www.siriuselectronics.com/index.php?main_page=page&id=9  apparently some of the more upmarket Futaba transmitters already have these fitted.   This has also been carried out on the older T6xa transmitter.  sirius electronics use a 30 awg wire across the diode to act as a fuse or recommend a 2amp pico fuse.  The 1.1 amp polyfuse would trip at 2 amps.   1.1 is the maximum holding current and you should never exceed 1 amp via your tx charging socket anyway.  PS my tx was out of warranty when I did this and I only did it after requesting  a price from Ripmax for them to do it.  I'm still waiting, but then its only been since June 2009.