HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old May 12, 2001, 08:46 AM
small electrics r BIG FUN
Iowa
Joined Aug 2000
4,345 Posts
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 ?

Thanks

Al
Al P is offline Find More Posts by Al P
Reply With Quote
Sign up now
to remove ads between posts
Old May 12, 2001, 09:21 AM
Old Guy
Ron Cichowski's Avatar
Carver, MA USA
Joined Jun 2000
553 Posts
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.
Ron
Ron Cichowski is offline Find More Posts by Ron Cichowski
Reply With Quote
Old May 13, 2001, 03:18 AM
Electric Airplane Junkie
bhchan's Avatar
United States, CA, San Mateo
Joined Jun 2000
5,597 Posts
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.


Brian
bhchan is offline Find More Posts by bhchan
Reply With Quote
Old May 14, 2001, 12:57 AM
Registered User
Jurgen Heilig's Avatar
53859 Niederkassel, Germany
Joined Sep 2000
18,790 Posts
1A is usually the maximum current to charge a transmitter battery. Jurgen
Jurgen Heilig is online now Find More Posts by Jurgen Heilig
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
How much current can I get from Radio shack 8 cell 1600 mah Nimh The Other Dave Power Systems 4 May 02, 2008 04:25 PM
Panasonic Li ion how much current? Neil McGrath Power Systems 0 May 14, 2002 10:39 AM
How much current do you get from your Li-Ions? ETKing Parkflyers 16 Jan 31, 2002 09:35 PM
How much current fron AA NiMH ? Orion1 Beginner Training Area (Aircraft-Electric) 15 Jan 12, 2002 10:55 AM
How much current does your elmn draw yjin Electric Heli Talk 3 May 09, 2001 12:35 AM