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Old 04-24-2010, 08:49 PM   #1
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Question About Rechargeable Battery Care


I have an assortment of rechargeable batteries, some specific to certain tools, some just standard sizes such as AA. Sometimes, when the batteries are in the charger, I will find that another member of the family, wanting to use the outlet to which the charger was connected, has unplugged the charger without removing the batteries from the charger.

To me the seems to be detrimental to have batteries in a charger that is not plugged in to an electrical outlet. I looked online, and didn't find any answers.

Does anyone have any ideas on this?

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Old 04-24-2010, 09:50 PM   #2
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Question About Rechargeable Battery Care


It shouldn't hurt the batteries to sit in the charger. However, letting a dead battery sit too long without charging it can affect its performance and life.

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Old 04-25-2010, 01:58 PM   #3
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Question About Rechargeable Battery Care


Thanks of the info.

A while back, someone had warned me that if a battery charger was not plugged in to an electrical outlet, the current in the batteries would then go through the charger's transformer and discharge, and ultimately ruin the batteries. I never realy learned whether that was fact or someone's opinion.
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Old 04-25-2010, 02:06 PM   #4
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Question About Rechargeable Battery Care


If i remember to i try to discharge my batteries before recharging them but that is if i remember and or have the time!
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Old 04-25-2010, 03:28 PM   #5
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Question About Rechargeable Battery Care


Quote:
Originally Posted by kc27 View Post
the current in the batteries would then go through the charger's transformer and discharge,
Depends on the charger's internal circuitry. Unplugging is foreseeable by the manuf. so I'd think they'd add some circuitry to prevent this from discharging a battery.

For sure, though, the current will not go all the way back into the windings.
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