rrTV-PHOTO   New HD TV
HOME   rrTV-PHOTO   GALLERIES   MY GALLERY   HELP-FAQ
myHOME PM pmRR MEMBERS 705 ONLINE 44 EVENTS SEARCH REGISTER  START HERE
 
1 page91 viewsPOST REPLY
Next D . Futaba-RC . Fast Lad Performance

.
.
Radio - Servo - Gyro - Gov - Batt > How do you charge your batteries at home?
 
 
supertux1
Heliman
Location: Madison, WI

Sometimes I'm not able to fly for several days (travel for work, bad weather, etc) and I don't want my batteries discharging overnight on me.
I'm also worried about overcharging them.

I've got Triton chargers which are good for the field, but they shut off when they're done, leaving the batteries to discharge until I go hit the button again. (Sometimes I forget, sometimes I'm not home...)

So I rigged up the following contraption:

I have all of my batteries wired into their original AC adapter 'brick' chargers which are connected to a big power-strip. The chargers don't have any integrated electronics and basically put out C/10, give or take, for what they're charging.

The power-strip is connected to one of those light-timers which applies power to the adapters for 1.5 hours on then 1.5 hours off. This cycle repeats all day long, all week long.

The timer is pretty sophisticated and can do all sorts of programs.
I just guessed at the %50 duty cycle. Is there a better way, say 8 hours on and 12 hours off, or anything like that?
05-11-2008 08:53 PM
 
 
kcordell
Senior Heliman
Location: O Fallon, MO

When I used to use NiCads (I assume that is what you are talking about because lipos don't loose charge like that), I used a Sirius charger in the car. When I loaded up for the field, plugged the charger in and by the time I am at the field, batteries are charged.
Here's a link. Great charger!

http://www.siriuselectronics.com/in...products_id=346

Or, you can go the way of the lipo (either lion or lipo) for your receiver battery and once they are charged, they pretty much hold the charge. Plus you can get a lot higher capacity battery the same size and weight of a nicad. You just need to add the voltage regulator as these batteries are 7.4 volts.

Team Futaba, Miniature Aircraft Pilot, YS Engines, VelTye
05-11-2008 09:03 PM
 
 
supertux1
Heliman
Location: Madison, WI

Actually, all of the batteries are NiMH, except for two lead acid
field ones I have wired in series for my Dynatron 24v. (I charge those individually from separate 12v adapters.)

Specifically, a 9.6v 1650 mAh NiMH tx battery, a 7.2v 4200 mAh NiMH rx battery, and a 4.8v 1100mAh NiMH pack in a Radio South Pro-Driver MKIII glow starter. I've got more too, and it would be nice to have a way of keeping those charged all the time.

I want to be able to fast charge them at the field with my Tritons, but then throw them on a very slow maintenance charge at home for a few days.
05-11-2008 09:23 PM
 
 
1 page91 viewsPOST REPLY
Esprit Model . Thunder Power RC . Real Raptors

.
.
Radio - Servo - Gyro - Gov - Batt > How do you charge your batteries at home?
  UPDATE SCREEN   PRINT TOPIC Advertisers 

Subscribe to This Topic

Monday, July 7 - 4:26 pm - Copyright © 2000 - 2008 runryder.com | email | link to rr | runryder needs cookie