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Old May 12, 2001, 08:46 AM
Al P is offline
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small electrics r BIG FUN

how much current while charging Transmitter

I saw a nifty plug for charging the transmitter from my flight pack charger. This would save time over the trickle charger or taking the pack out to charge.

How much current is safe while charging the transmitter pack inside the transmitter ?


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Old May 12, 2001, 09:21 AM
Ron Cichowski is offline
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C/1 is safe as long as you have some sort of peak detection shutdown. (e.g. 600mah pack at .6 amp) A number of commercial units will boost TX pack at 1.0A with peak shut down.
Old May 13, 2001, 03:18 AM
bhchan is online now
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Electric Airplane Junkie
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It's all depends on which kind of battery and wires in the tranny. Also, some tranny has a diode in series with the battery to prevent reverse charge apply to the cells.For most peak detection chargers, they need to "see" the real voltage of the battery. You will need to bypass(shorted) the diode for the charger to see the voltage. If you have good cells in the tranny, 2-3C rate should be ok. Most of the tranny battery is going through the switch., You don't want to pass too much current through the switch and damage the contacts.

Old May 14, 2001, 12:57 AM
Jurgen Heilig is offline
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1A is usually the maximum current to charge a transmitter battery. Jurgen

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