ORIGINAL: Popriv
4.8V - 1700MAh RX battery, all I have is the Hobbico quick field charger. I have no wallwart to do the initial slow charge so I'm setting the quick charger to 0.2 amps (200mA? Just over the 1.70mA that would be 10/C for a long slow full charge. ???) Because the battery doesnt reach full charge in two hours the charger shuts off. I just keep resetting the charger and it runs for another 2 hours. I've done this about 5 times. The last time the pack was a little warm to the touch.
Tomorrow I fly again. If I feel I have to quick charge at the field I should not go above 1.0 amps setting, max?
My TX was on charge over night and the screen shows 5.2V I took out the Spektrum 1500mAh AA rechargables and put in Alkaline AAs and I get 6.2V on the TX.
The Alkalines dont give a mAh number. Are they ok to use? I have a regular quick charger for the Spektrum AAs, 'll see if they come up to 6.2 in the TX.
Keep 4 Alkalines in the flight box and They will power the TX in a pinch???
About the wallwarts: I have 20 or so of these devices saved over the years from various electronic equipment.
If I have one that puts out 150 mAh could I splice the appropriate connector and use that????
I doubt I have one thats 4.8 volts though?? most will be 6V or 9V????
I know they are not expensive but would these work?
Thanks
Steve
Probably a typo but with a 1700mah pack C/10 would be 170 ma or 0.17 amp. This would be a "trickle or slow charge" rate. To charge an empty battery in 2 hours you would need to set it to 850 ma or higher. This shouldn't hurt anything but if charging at home I'd use a lower rate or a wall wart charger. A 6 volt wall wart should be OK at 150 ma. They will take a lot longer than a Quick Charger though but are easier on the batteries.