MRC Super Brain 960: Problem charging 9.6v 4200mAh  
View related threads: (in this forum | in all forums)

Tower Hobbies
Enter up to 4 keywords or Tower stock numbers
Logged in as Guest



Users viewing this topic: none
  Printable Version
       

All Forums >> Radios, Batteries, Clubhouse and more >> Batteries & Chargers >> MRC Charger Product Support (i.e. Super Brain, etc) >> MRC Super Brain 960: Problem charging 9.6v 4200mAh
Page: [1]

Login
Message << Older Topic   Newer Topic >>
MRC Super Brain 960: Problem charging 9.6v 4200mAh - 5/8/2008 3:47:50 PM   
jason13j


 

Posts: 3
Joined: 5/8/2008
From: Walnut Creek, CA, USA
Status: offline 		Hi All,
I have 2 new intellect batteries, (1) 9.6v 1400mAh which charges just fine (using auto settings) and (2) 9.6v 4200mAh which does not charge at all. When I connect the battery to the charger, I get "Err". Any ideas on how to fix this or what might cause it? Thanks.
       Post #: 1

RE: MRC Super Brain 960: Problem charging 9.6v 4200mAh - 5/12/2008 9:46:17 PM   
Tim@MRC


 

Posts: 317
Joined: 7/24/2006
From: Edison, NJ, USA
Status: offline 		What's the voltage in these batteries when you first hook them up?

Tim Sandor

(in reply to jason13j)
       Post #: 2

RE: MRC Super Brain 960: Problem charging 9.6v 4200mAh - 5/12/2008 9:54:25 PM   
jason13j


 

Posts: 3
Joined: 5/8/2008
From: Walnut Creek, CA, USA
Status: offline 		So I called support last week and was told that it was most likely the battery. When I plug in the charger, everything looks fine. Plug in the 9.6v 4200 maH batt and get a reading of 0.0V. Plug in another batter and get a good voltage. Seems that the first battery had drained to the point where it didn't give any voltage(? I'm not too familiar with the terminology). The tech guy told me I could 'jump start' the battery by hooking up a 9v batt to it for a few seconds (pos to pos, neg to neg). And it worked! I plugged the batt back into the charger and got a reading of ~5 v, so i thought great, and started charging. The only thing is, the battery will fast charge and then go through a long trickle charge as expected. however, when i take the batt off the charger and plug back in, i get a reading of ~5 v again. Is there something I'm missing or is the battery totally fried? Thanks.

(in reply to Tim@MRC)
       Post #: 3

RE: MRC Super Brain 960: Problem charging 9.6v 4200mAh - 5/12/2008 11:00:40 PM   
Tim@MRC


 

Posts: 317
Joined: 7/24/2006
From: Edison, NJ, USA
Status: offline 		You may need to cycle to the battery a few times to build the capacity back up again. If you use too high a charge rate, the voltage will jump too quickly and trip off the charger. If the voltage in the battery quickly drops after being charged, then it may an indication that the battery isn't good.

Tim Sandor

(in reply to jason13j)
       Post #: 4

RE: MRC Super Brain 960: Problem charging 9.6v 4200mAh - 5/13/2008 4:01:02 PM   
jason13j


 

Posts: 3
Joined: 5/8/2008
From: Walnut Creek, CA, USA
Status: offline 		Tim,
Thanks for you comments so far. Can you recommend any particular settings to gently try to bring the battery to life?

(in reply to Tim@MRC)
       Post #: 5

RE: MRC Super Brain 960: Problem charging 9.6v 4200mAh - 5/13/2008 7:01:06 PM   
Tim@MRC


 

Posts: 317
Joined: 7/24/2006
From: Edison, NJ, USA
Status: offline 		I would try charging at .5C or at about 2 amps, but only if the voltage in the pack is up around the 9.6 volts it's rated at. If it's not, then I would use .5 amps until the voltage is up to the 9.6 volts and the voltage holds when the charge is stopped. The charge may shut off well before the battery is fully charged, jsut hit the start button again, and keep doing this until you feel the battery getting warm and the charger stops, then it's done. It should get better the more charges you get into it.

(in reply to jason13j)
       Post #: 6

Page:   [1]
All Forums >> Radios, Batteries, Clubhouse and more >> Batteries & Chargers >> MRC Charger Product Support (i.e. Super Brain, etc) >> MRC Super Brain 960: Problem charging 9.6v 4200mAh
Page: [1]





Jump to:


Google 



Search | Marketplace | Event Calendar | Local Clubs | Magazine | Product Ratings | New Products | Discussion Forums

Photo Gallery | Member Video Posts | RCU Video Gallery | Instructor Search | Field|Track|Marina Search

Advertisers | Hobby Vendor Resources | Rate Manufacturers | Sign In/Sign Up

SITE MAP!   : :   FORUM RULES

© 2001 - 2007 24-7 RC, LLC, all rights reserved.

Charities we support that also need your help
Yorkie Rescue | Humane Society | ASPCA | Crohn's-Colitis America

Kaango.com Classifieds

0.500RCU1