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21-01-2007, 11:38 AM
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#1 | ||
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Banned
Join Date: Jan 2007
Location: geelong
Posts: 1,288
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anyone know if its ok to charge a battery with it still hooked to the car.
my brothers battery needs to be charged but the terminals are a pain in the *** to get off so will it cause any damage if it is charged while still connected. thanks |
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21-01-2007, 11:51 AM
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#2 | ||
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Regular Member
Join Date: Jul 2006
Location: Canberra
Posts: 51
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The car electronics will not appreciate it, most battery chragers are very dirty in their circuitry and put out all sorts of nasty electrical spikes, this doesn't hurt the lead acid battery but can put too much voltage across any electrical components still hooked up, replacing a computer or regulator is expensive.
For peace of mind I'd would always disconnect at least the positive. Install a battery isolation switch - that way you have the convience of leaving the battery where it is, but still protect the senative electronics. |
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21-01-2007, 12:17 PM
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Performance moderator
 
Join Date: Feb 2005
Location: St Clair..N.S.W
Posts: 14,875
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Connect charger leads with CORRET polarity, then turn charger on.. You'll be fine!!!
Its when jump starting where higher loads / amps that spikes happen... Never connect anything under load in any electrical appliance.. Use the switch and you'll be fine...
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21-01-2007, 12:23 PM
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Moderator
  
Join Date: Feb 2005
Location: Kenthurst
Posts: 40,403
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Have also read in some applications it is best to remove the plugs from the tops of the cells as well.
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The Current Stable 2016 SZII TS Territory RWD Petrol The Evolution of the EGA54D utes AU Workshop Build thread of EGA54D B-Series Workshop Build thread of EGA54D 2004 SX TX Territory AWD - Gone but not forgotten 2010 FG XT "The ex-rental" - Moved onto a new home Mechan1k's Flickr Page |
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21-01-2007, 01:48 PM
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#5 | ||
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Regular Member
Join Date: Mar 2005
Location: Adelaide
Posts: 479
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I use a constant flow/trickle charger on the ute. It sits there all year without being started or moved and the battery is fully charged all the time. People that store fishing boats away for long periods at a time use them, cost about $70.
Trickle chargers can be left to charge with the caps on the battery. But fast normal chargers the caps have to come off. Or go to a automotive electrical place and they'll just charge you ten bucks to get it out and have it charged in under 2 hours. |
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21-01-2007, 01:57 PM
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#6 | ||
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Moderator
Join Date: Feb 2005
Location: Kenthurst
Posts: 40,403
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That's pretty much was I was charged when I picked up my new generator for home.
Came with an empty battery .... Battery World charged me $12 to fill with acid and charge for me.
__________________
The Current Stable 2016 SZII TS Territory RWD Petrol The Evolution of the EGA54D utes AU Workshop Build thread of EGA54D B-Series Workshop Build thread of EGA54D 2004 SX TX Territory AWD - Gone but not forgotten 2010 FG XT "The ex-rental" - Moved onto a new home Mechan1k's Flickr Page |
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charging battery
Hybrid Mode