Dead hobbyzone NiMH batteries  
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All Forums >> Electric Aircraft Universe >> Electric General Discussion >> Dead hobbyzone NiMH batteries
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Dead hobbyzone NiMH batteries - 7/19/2008 11:28:00 AM   
hsclater


 

Posts: 9
Joined: 4/26/2007
From: London, UNITED KINGDOM
Status: offline 		I stored my Hobbyzone Supercub over winter, probably with empty batteries, and now neither battery will hold a charge. Same thing happened to another one when I lost my plane in a field for 2 months, then the farmer found it and the battery only lasted for about 5 minutes.

Is there anything that can be done to resurrect them, or do I have to buy new ones?

Thanks
       Post #: 1

RE: Dead hobbyzone NiMH batteries - 7/19/2008 3:40:59 PM   
whitecrest


 

Posts: 86
Joined: 8/8/2007
From: Orleans, MA, USA
Status: offline 		Try charging at a very low rate overnight. This will probably restore them enough to accept the usual rapid charging. Nimh naturally self-discharge at a fairly high rate. If they are allowed to get too low, rapid charging may not complete properly. I hope you can recover your packs.

_____________________________

Some things that count can''t be counted, and some things that can be counted don''t count. << A.E.

(in reply to hsclater)
       Post #: 2

RE: Dead hobbyzone NiMH batteries - 7/19/2008 9:16:24 PM   
hsclater


 

Posts: 9
Joined: 4/26/2007
From: London, UNITED KINGDOM
Status: offline 		Ah thanks, I never thought of that. I will try it tonight....thanks.

(in reply to whitecrest)
       Post #: 3

RE: Dead hobbyzone NiMH batteries - 7/20/2008 9:06:18 PM   
hsclater


 

Posts: 9
Joined: 4/26/2007
From: London, UNITED KINGDOM
Status: offline 		Took the plane out today - one lasted about 5 minutes, the other over 10 minutes, I gave up and landed it after a while. So, one battery is completely fixed by a slow charge - I used the lowest setting on the charger - the other half fixed, I will give it another slow charge.

So, thanks very much for the tip - it was so nice to take her out again, many thanks!

(in reply to hsclater)
       Post #: 4

RE: Dead hobbyzone NiMH batteries - 7/20/2008 10:49:13 PM   
whitecrest


 

Posts: 86
Joined: 8/8/2007
From: Orleans, MA, USA
Status: offline 		Thanks very much for the progress report. I was interested to see how it would work out and glad it was successful. I use Nimh cells in my transmitters, and they have worked very well, even after long periods of inactivity. Enjoy your future flights!


_____________________________

Some things that count can''t be counted, and some things that can be counted don''t count. << A.E.

(in reply to hsclater)
       Post #: 5

RE: Dead hobbyzone NiMH batteries - 7/22/2008 9:37:26 AM   
hsclater


 

Posts: 9
Joined: 4/26/2007
From: London, UNITED KINGDOM
Status: offline 		No problems, thanks again for the tip - saved me a few quid and things are very tight right now! She's ready for a weekend camping trip and I found a top flygin spot near my new house as a bonus.

Cheers.

(in reply to whitecrest)
       Post #: 6

RE: Dead hobbyzone NiMH batteries - 7/23/2008 3:44:39 AM   
RedGN



Posts: 444
Joined: 9/6/2007
From: Toronto, ON, CANADA
Status: offline 		Another method i use is to make sure i drain the battery well before charging. Try it.

(in reply to hsclater)
       Post #: 7

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