R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric Off-Road

Reply
 
Thread Tools Search this Thread
Old 11-18-2008, 10:57 AM   #1
Tech Rookie
 
DirtMunky's Avatar
 
Join Date: Nov 2008
Location: U.K
Posts: 18
Default Help with my BC-6 charger please!

I just bought a Bantam BC-6 charger, second hand. Now the manual on this thing is not very clear, to put it mildly.

My question is: how do you know when the charge is complete?

I have a brand new 6C NiMH 4600mah 7.2v pack in it, very first charge, so doing it at 0.4A just to be kind to the battery. On "manual" setting that is. How do you work out how long this might take, and how do you know when the charger is done? I really don`t want to cook the battery because i don`t know how to use the charger

Will it shut off after the charge, go to trickle, or what?
DirtMunky is offline   Reply With Quote
Old 11-18-2008, 11:27 AM   #2
Tech Elite
 
y2kgtp's Avatar
 
Join Date: Sep 2008
Location: Deltona, FL
Posts: 2,559
Trader Rating: 35 (100%+)
Send a message via AIM to y2kgtp Send a message via Yahoo to y2kgtp
Default

0.4A an hour is really low.....that might take....um....10+ hours to charge?
__________________
"Yes my car is technically illegal, but still its either just as fast or slower than any other car on the track so whats the issue with it being illegal?"
y2kgtp is offline   Reply With Quote
Old 11-18-2008, 11:29 AM   #3
Tech Elite
 
JamesnMeyer's Avatar
 
Join Date: Oct 2006
Location: So Cal
Posts: 2,224
Trader Rating: 41 (100%+)
Default

Set it to 4 amps not .4 and that will be easy on your batteries. Should take 30 to 40 minutes to charge depending how low it is.
__________________
The Stadium at Pegasus Hobbies:tire:
JamesnMeyer is offline   Reply With Quote
Old 11-18-2008, 11:37 AM   #4
Tech Lord
 
Join Date: Jul 2008
Location: Houston, TX
Posts: 11,530
Trader Rating: 21 (100%+)
Default

Rough time estimate - (batt size in mah)/(charge rate in amps*1000) = hours

Yours - 4600mah/(4amps*1000) = 4600/4000 = 1.15hrs or 1 hr and 15min.

This assumes batt is completely empty which it never is and has no internal resistance, which they all have. But it can give you some idea of what the maxximum time it could take would be.
Duster_360 is offline   Reply With Quote
Old 11-18-2008, 12:09 PM   #5
Tech Rookie
 
DirtMunky's Avatar
 
Join Date: Nov 2008
Location: U.K
Posts: 18
Default

JamesnMeyer, I`ve read that new NiMH batteries need to be broken in very gently for the first 3 or 4 charges. Like 10% of normal charge rate. Considering that these batteries are stright outta the box, never been charged before, I`m doing them at 0.4A. Is this too low for a first charge?
DirtMunky is offline   Reply With Quote
Old 11-18-2008, 01:00 PM   #6
Tech Rookie
 
Join Date: Oct 2008
Posts: 5
Default

Quote:
Originally Posted by DirtMunky View Post
JamesnMeyer, I`ve read that new NiMH batteries need to be broken in very gently for the first 3 or 4 charges. Like 10% of normal charge rate. Considering that these batteries are stright outta the box, never been charged before, I`m doing them at 0.4A. Is this too low for a first charge?
You need to do a formation charge which is a C/10 charger for 22 hours. With your battery, you need to charge at 460 mah for 22 hours. You cannot use a peak detection charger like the Bc-6 because the charger will not allow a charge for that long. What you can do is change the Delta Peak sensativity for nimh to the max value and charge at .5 amps. Also turn off the safety time and capacity timer. Watch the time and restart as often as necessary. You may not get to 22 hours this way. Make sure to reset it all again before you use it.
__________________
RC Accessory, Inc
Auth US Bantam Importer
RC Accessory is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Outdoor rc Vancouver/Richmond BC fasteddie d Canadian R/C Scene 130 11-02-2009 01:37 AM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -7. It is currently 03:45 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net