Go Back  R/C Tech Forums > General Forums > Electric On-Road
Rechargable M8 Battery Pack? >

Rechargable M8 Battery Pack?

Community
Wiki Posts
Search

Rechargable M8 Battery Pack?

Thread Tools
 
Search this Thread
 
Old 02-26-2003, 07:59 AM
  #16  
Tech Fanatic
iTrader: (5)
 
Turbo9000's Avatar
 
Join Date: Jul 2002
Location: Austin Texas
Posts: 783
Trader Rating: 5 (100%+)
Default

how about discarging rx batts?..how do you do it...just leave the switch on the car on?
Turbo9000 is offline  
Old 02-26-2003, 11:44 AM
  #17  
Tech Regular
 
Join Date: Aug 2002
Posts: 457
Default

Occasionnally I discharge the cells in my M-8 by leaving the radio on.

****TAKE OUT THE MODULE IN THE BACK OF THE RADIO****

This thing gets hot when left on for extended period of time, and may burn up.

Most of the current is consumed here, but leaving the radio on without it overnight will definetly run the cells down.

Also, it is my experience that the cells show higher voltage after cycling them this way.
Pit Crew is offline  
Old 02-27-2003, 12:29 AM
  #18  
Tech Elite
 
Cole Trickle's Avatar
 
Join Date: Sep 2001
Location: Denmark / Europe
Posts: 2,571
Default

Originally posted by Pit Crew
Also, it is my experience that the cells show higher voltage after cycling them this way.
Yep.
Cole Trickle is offline  
Old 02-27-2003, 02:22 AM
  #19  
Tech Apprentice
 
twocan1's Avatar
 
Join Date: Dec 2002
Location: Albion Park
Posts: 89
Default Re: Rechargable Cells

Originally posted by CRASH
I use 1800 NIMH batteries and a plug from radio shack that plugs right into the jack on the M8s battery tray. Then charge it off my Millenium. Have had no problems.

I use 1800 NiMh and I bought a plug from the local electronics shop to suit a 3PJS and charge batteries in radio with a Eagle CDC V6. Works fine and charge at .4 amps
twocan1 is offline  
Old 02-27-2003, 05:20 AM
  #20  
Tech Master
 
Bigtbone's Avatar
 
Join Date: Apr 2002
Location: Time to put down the Golf clubs and poker chips and GO RACIN!
Posts: 1,219
Default

What is the name of the plug?
Bigtbone is offline  
Old 02-27-2003, 06:07 AM
  #21  
Tech Fanatic
iTrader: (5)
 
Turbo9000's Avatar
 
Join Date: Jul 2002
Location: Austin Texas
Posts: 783
Trader Rating: 5 (100%+)
Default

Originally posted by Pit Crew
Occasionnally I discharge the cells in my M-8 by leaving the radio on.

****TAKE OUT THE MODULE IN THE BACK OF THE RADIO****

This thing gets hot when left on for extended period of time, and may burn up.

Most of the current is consumed here, but leaving the radio on without it overnight will definetly run the cells down.

Also, it is my experience that the cells show higher voltage after cycling them this way.
thanks for that tip...is there a similar ways to discharge the rx pack?
Turbo9000 is offline  
Old 02-27-2003, 06:51 AM
  #22  
Tech Elite
 
Cole Trickle's Avatar
 
Join Date: Sep 2001
Location: Denmark / Europe
Posts: 2,571
Default

Originally posted by Turbo9000
thanks for that tip...is there a similar ways to discharge the rx pack?
One way could be to simply leave the RX on.

Another could be this discharger, which are specifically made for both RX and TX: http://www.apexhk.com/discharger.html

By connecting 4 diodes in series together with a proper resistor, you can make one yourself.

It could be a diode like the 1N4004, which got around 0,6 in voltage drop. This way you'll get 0,6 volt cut off pr. cell. Use a resistor rated 5-10 ohms, will result in a discharge rate of 250-500 mA. This can be done for less than 5$.

Hmmm. Maybe I should make one with 8 diodes for my TX...
Cole Trickle is offline  
Old 02-27-2003, 06:57 AM
  #23  
Regional Moderator
 
Addict sa RC's Avatar
 
Join Date: Aug 2001
Location: Quezon City, Philippines
Posts: 557
Default

twocan1, I'm very interested in your setup. Do you have any pics?
Addict sa RC is offline  
Old 02-27-2003, 08:08 AM
  #24  
Tech Fanatic
iTrader: (5)
 
Turbo9000's Avatar
 
Join Date: Jul 2002
Location: Austin Texas
Posts: 783
Trader Rating: 5 (100%+)
Default

Originally posted by Cole Trickle
One way could be to simply leave the RX on.

Another could be this discharger, which are specifically made for both RX and TX: http://www.apexhk.com/discharger.html

By connecting 4 diodes in series together with a proper resistor, you can make one yourself.

It could be a diode like the 1N4004, which got around 0,6 in voltage drop. This way you'll get 0,6 volt cut off pr. cell. Use a resistor rated 5-10 ohms, will result in a discharge rate of 250-500 mA. This can be done for less than 5$.

Hmmm. Maybe I should make one with 8 diodes for my TX...
It would probly take days to discharge the rx by leaving it on right? its not bad for the reciever to leave it on?

sorry for all the ques. but I just spent 100 bucks on a new reciever.
Turbo9000 is offline  
Old 02-27-2003, 11:44 AM
  #25  
Tech Elite
 
Cole Trickle's Avatar
 
Join Date: Sep 2001
Location: Denmark / Europe
Posts: 2,571
Default

Originally posted by Turbo9000
It would probly take days to discharge the rx by leaving it on right? its not bad for the reciever to leave it on?

sorry for all the ques. but I just spent 100 bucks on a new reciever.
Feel free, and keep on asking.

The RX can take it - it's designed to be used

However the accus dont like to be discharged all the way down to zero. There's a risk of reversed polarity.

Another solution could be to discharge them with a bulb. Preferable one for around 5 volt and ½-1 watt. Simply disconnect the battes, when the light goes out.
Cole Trickle is offline  
Old 02-27-2003, 09:34 PM
  #26  
Tech Apprentice
 
twocan1's Avatar
 
Join Date: Dec 2002
Location: Albion Park
Posts: 89
Default

Originally posted by Addict sa RC
twocan1, I'm very interested in your setup. Do you have any pics?
I have emailed you


Sam
twocan1 is offline  

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.