Flying Turtle
Flashaholic
I imagine this has been asked before. Is it possible to safely recharge NiMH batteries in an old NiCad type charger? Thanks for any advice. /ubbthreads/images/graemlins/help.gif
Chargers
- Thread starter Flying Turtle
- Start date
RewopEldnac
Newly Enlightened
Hope this answer your question.
[ QUOTE ]
Dave Wright said:
I've messed around with RC cars a bit. Both NiCads and NiMH are used widely in the cars. If memory serves, chargers for NiCads and NiMH are either different or switchable. You don't plug either battery type into the chargers without using the correct charger or setting a multi-function charger properly. I'm not knowledgable on this topic, but have understood that the difference is how each battery type behaves when near peak charge. NiCads have a fairly pronounced "I'm full" voltage drop. NiMH have a small drop.
A NiCad smart charger will overcharge NiMH batteries because it doesn't notice the drop and keeps pumping power until the battery is ruined. A NiMH charger will undercharge NiCads for the reverse reason.
The MAHA is designed to charge NiMH batteries. Its manual lists NiCad as well, but that's just because it won't damage them. I doubt that the MAHA is really smart enough to tell the difference between the 2 battery types and charge each properly. Just speculation. Please someone correct me if I'm wrong.
[/ QUOTE ]
Got it from here
http://www.candlepowerforums.com/ubbthreads/showflat.php?Cat=&Board=UBB6&Number=205039&Forum=UBB6&Words=401&Match=Entire%20Phrase&Searchpage=0&Limit=1000&Old=allposts&Main=205039&Search=true#Post205039
[ QUOTE ]
Dave Wright said:
I've messed around with RC cars a bit. Both NiCads and NiMH are used widely in the cars. If memory serves, chargers for NiCads and NiMH are either different or switchable. You don't plug either battery type into the chargers without using the correct charger or setting a multi-function charger properly. I'm not knowledgable on this topic, but have understood that the difference is how each battery type behaves when near peak charge. NiCads have a fairly pronounced "I'm full" voltage drop. NiMH have a small drop.
A NiCad smart charger will overcharge NiMH batteries because it doesn't notice the drop and keeps pumping power until the battery is ruined. A NiMH charger will undercharge NiCads for the reverse reason.
The MAHA is designed to charge NiMH batteries. Its manual lists NiCad as well, but that's just because it won't damage them. I doubt that the MAHA is really smart enough to tell the difference between the 2 battery types and charge each properly. Just speculation. Please someone correct me if I'm wrong.
[/ QUOTE ]
Got it from here
http://www.candlepowerforums.com/ubbthreads/showflat.php?Cat=&Board=UBB6&Number=205039&Forum=UBB6&Words=401&Match=Entire%20Phrase&Searchpage=0&Limit=1000&Old=allposts&Main=205039&Search=true#Post205039
FreeBSDboy
Newly Enlightened
In other words, no.
