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Can you use a 12volt car battery charger to charge a 18volt cordless drill battery?
Wiki User
∙ 14y ago
I'm actually charging my 12V sealed lead acid battery with a laptop adapter which output is 19V, 2.1A. I'm not sure this will shorted the life of my battery or not, but the battery hold the charge.
I don't have a voltmeter to test the voltage, but the battery can light up a 12V car headlight light bull. So, I guess it work.
Wiki User
∙ 11y ago
Wiki User
∙ 14y agono you can not will it not charge the battery to 12volts?ie charge it but not fully
Wiki User
∙ 6y agoTwo 12 Volt batteries connected in series = 24 Volts.Two 12 Volt batteries connected in parallel = 12 Volts.
Can't be to healthy for the power tool either way.
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The NiCad battery costs around 45 to 50$.The Lithium Ion battery starts at around 75$.
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If,for example, a 12 volt car battery is used to charge an 18volt mobile battery then an electronic oscillator stacking voltages on capacitors via diodes is used. This is called a 'charge pump' or 'Cockcroft and Walton' voltage multiplier.
If three 18volt zener diode where connected in series offers a breakdown potential of?
18 V
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