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The BMFA have always advised against loose batteries not hard wired in soldered packs for Txs.
But it seems they've now moved the goalposts to include the DX6i and similar 2.4g Txs in the July 2009 amendment to their handbook. I received this today with my BMFA mag but it hasn't appeared on their website yet. It reads as follows:-
The 2007 BMFA Member's Handbook
Corrections and Additions (Issue 3)
July 2009
Page 20, column 2, Batteries
add new para (g) and renumber following paras.
Some modern transmitters have very low current drain and are supplied as dry battery sets with battery boxes that aren't removable. In these cases dry cells give an acceptably long operational life and may be used safely. If you do use rechargeable cells in these transmitters, make sure that the cells are removed and replaced at least monthly to keep the battery contacts clean. If not your transmitter might suffer from the same symptom of many TV remotes when they stop working until you have disturbed the batteries.
I've read that some BMFA approved flying sites would not previously allow the DX6i and similar 2.4g Txs with dry cells - no reason not to allow them now though
_________________
Cheers
Bugster
But it seems they've now moved the goalposts to include the DX6i and similar 2.4g Txs in the July 2009 amendment to their handbook. I received this today with my BMFA mag but it hasn't appeared on their website yet. It reads as follows:-
The 2007 BMFA Member's Handbook
Corrections and Additions (Issue 3)
July 2009
Page 20, column 2, Batteries
add new para (g) and renumber following paras.
Some modern transmitters have very low current drain and are supplied as dry battery sets with battery boxes that aren't removable. In these cases dry cells give an acceptably long operational life and may be used safely. If you do use rechargeable cells in these transmitters, make sure that the cells are removed and replaced at least monthly to keep the battery contacts clean. If not your transmitter might suffer from the same symptom of many TV remotes when they stop working until you have disturbed the batteries.
I've read that some BMFA approved flying sites would not previously allow the DX6i and similar 2.4g Txs with dry cells - no reason not to allow them now though
_________________
Cheers
Bugster