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 Post subject: nicad chargers
PostPosted: Sat Feb 02, 2013 10:42 am 
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Joined: Thu Jan 12, 2012 10:21 am
Posts: 251
anyone know about charging nicads?
i have a 24 volt power tool :shock:
i broke the charger,it is in 2 pieces,one that plugs into the wall socket,that is toast and the base that the battery sits in,i can get the wall part for a sensible amount of money but they are described as for lead acid batteries only,the base unit has a chip and several other bits in it so the question is.....will the lead acid part work with my base unit,voltages and amps are the same :roll:


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 Post subject: Re: nicad chargers
PostPosted: Sat Feb 02, 2013 3:01 pm 
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Joined: Wed Jan 11, 2012 8:24 pm
Posts: 329
No, no, no,
Different chemical make ups of the battery need different charge rates and time for resting before the next charge cycle. E.g charge for 2 mins or to a tempeture, rest for 1 min. Then start again. Then another type charges different. 
I can't remember what battery need what, but that is it basically.
With like a car battery, it charges at one rate until the battery is at the same level as the charger.

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 Post subject: Re: nicad chargers
PostPosted: Sat Feb 02, 2013 8:25 pm 
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Joined: Thu Jan 12, 2012 10:21 am
Posts: 251
ok cheers for the reply,i thought so,i buy a tool for £60,a 2p part breaks and the whole lot is destined for the bin,what a world we live in ? :roll:


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 Post subject: Re: nicad chargers
PostPosted: Sun Feb 03, 2013 12:14 am 
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Joined: Wed Jan 11, 2012 6:05 pm
Posts: 2566
I overcharged a battery on an almost new drill, it overheated and warped!!Crazy, the chargers should have electronics that prevent overcharging. Like you say, meant the drill was useless to me.


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