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Home > How it Works > charging a 12 volt drill battery from 14 volt charger

charging a 12 volt drill battery from 14 volt charger

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arabbadot | 11:37 Mon 03rd May 2010 | How it Works
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The charger for my 12volt cordless drill has stopped working. Can I connect up to a14 volt charger (using wires if the holder does not fit)?
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Avatar Image razza
Anything above the specified voltage will burn it out eventually,probably sooner than later.It could also be a fire risk.
11:40 Mon 03rd May 2010
Avatar Image scotman
It depends.
To charge something to 12V requires a source of more than 12V so the original charger would have been this. Usually a 12V charger output be about 13V when the battery is fully charged. It really depends on what the maximum voltage on your 14V charger is.
12:39 Mon 03rd May 2010
Avatar Image tony1941
Do be careful if it doesn't fit the charger properly! If you use wires, then you must connect all three contacts - the third one is an over-temerature sensor inside the battery - if you overcharge without this connected it will get extremely hot - to the point of melting all the plastic with the risk of fire!! I only did it once..................
16:08 Mon 03rd May 2010
Avatar Image arabbadot
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oops thank you all. don`t know why the original charger packed in... almost as cheap to buy a new drill...pity though
21:51 Mon 03rd May 2010

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