Can I make my cordless drill batteries jump start my car?
I have two 24 volt lithium ion drill batteries. I understand that car batteries are rated in cranking amps design to let out short burst of power in a short amount of time. But if I want my drill batteries to be a portable jump starter how would I go about doing this? I know I would need a 24 volt to 12 volt converter to basically make 2 24 volt batteries into 4 12 volt batteries. What about a large capacitor to charge up all the power at once and let it out in a burst? Or is it much more complicated than that?
Thanks for the answers thus far but I'm not really getting what I'm looking for. I realize you can buy a jump starter anywhere for cheaper. I also realize drill batteries are designed like car batteries to put out the quick amps. But I'm still wondering what would it take to make a drill battery put out the quick amps like a car battery does? The watts are there, so there has to be a way to do it one way or another. Is it a complete change in the internal chemistry of the battery? Or are we talking about something a little more simple like changing the internal wiring to larger gauge of wire in contact with more cells to allow more amps to go through the wiring and feed a capacitor?
- john cLv 47 years agoFavorite Answer
That would be like a jumper in car jumper that connects to the cigarette socket only the power from the car also charges the jumper so that is no good for your drill batteries. Get 4 to 8 6 amp diodes and connect them in series until the 24 volts is more like 12 or so depending on how good the drill batteries are. - http://www.vat19.com/dvds/auto-jumper-jumpstarts-c...
- Born YesterdayLv 77 years ago
Lithium batteries are powerful, but don't compare
with the lead acid cells used for engine cranking.
The drill batteries are thermally limited to about 5-10 Amperes
(although they would provide more).
The lead acid cells are designed to deliver 1,000 Amperes for
a few seconds without falling below 10.5 Volts.
The total energy of the rechargeable battery packs don't
Meet a car's requirements.
For all the missing details see:Source(s): http://batteryuniversity.com
- oil field trashLv 77 years ago
Simply put, a cordless drill battery doesn't have sufficient amperage to turn the starter on an automobile.
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- StevenLv 77 years ago
You could rewire your batteries but then you have haywire mess when you could just buy it done for you in a tidy package.