View Full Version : Hi, I my stupid!
rcboy717
05-18-2003, 09:36 PM
Thats right, I'm just a nitro guy who knows nothing about RC electronics so, I'm going to post all my dumb ecectronic questions here and hope someone can take the time to help me.
Thanks!
1.) Whats the diff between NIMH and NiCd batteries?
2.) My transmitter manual says it has a NiCd charger jack. That means is can only be used with NiCds right?
I was hopeing to use these but I guess not:
http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXCXE8&P=7
3.) If I did get some sort of rechargable batteries for my transmitter and this: http://www2.towerhobbies.com/cgi-bin/wti0095p?FVSEARCH=trim5307&FVPROFIL=++&search3=Go for my receiver what changer would I need?
Thanks again!
#TOM#
tadium54
05-18-2003, 11:50 PM
1. nimh have generally longer runtimes and nicds have more punch.
2. no, you could you install nimh battery cells(AA size) and just monitor the charge.
3.OFNA offers a good peak charger for rx packs. I have one for my MP and its great.
rocknbil
05-19-2003, 12:50 PM
Originally posted by rcboy717
1.) Whats the diff between NIMH and NiCd batteries?
More importantly, nicads require complete discharge to avoid creating a "memory" which prevents them from accepting full charge. niMIH's not only do not require full discharge, they should be left with at least 30% charge in them. Cadmium is some obnoxious stuff - niMH's are also more environmentally friendly.
http://www.duracell.com/oem/Rechargeable/Nickel/nickel_metal_tech.asp
2.) My transmitter manual says it has a NiCd charger jack. That means is can only be used with NiCds right?
OK I'm going to get flames for this but it works for me. :D If it is a trickle charger it "should" be OK.
niMih's are more sensitive to overcharging. With nicads you can "get away" with a little overcharge but you will damage nimih's with the amount of overcharge designed for nicads. I've had some nimh's I use for RX packs, we use a nicad trickle charger and see no detrimental effects, but the duracell quick-charger is nice too.
Why can I get away with this? Duracell nimH's have a thermal overload built into the battery:
http://www.duracell.com/oem/Rechargeable/Nickel/thermal.asp
"DURACELL Ni-MH batteries contain a temperature sensing device and thermal protective devices to terminate charge/discharge in the event of high temperature conditions "
So in theory if it gets too hot . . it should stop. So far no worries.
rcboy717
06-11-2003, 06:05 PM
Thanks for the help!
I'm sure I'll come up with more Q's later :D .
Thanks again!
#TOM#