12v Drill Powered by Car Battery - Doable?

Don Ro · 10-20-2016, 06:08 PM

Forget about the drill's batteries, I want to power the drill w/my car battery to use on a scissors jack.
Are they compatible?
Will the car battery have too much of something and burn out the drill motor/circuitry, etc?
TIA.

id10t · 10-20-2016, 06:23 PM

Get a small inverter and use a regular drill, no need for adding cords to a cordless.

How much wattage would you need? I picked up a 400w for $40 about 10 years ago...

Don Ro · 10-20-2016, 06:26 PM

Hmmm...never thought of that........thanks.
Will look into that.
I tried it w/a 9v working drill and it rotated slightly then something popped in the drill.
Boo!

A930Rocket · 10-20-2016, 07:02 PM

Maybe try an impact drill.

I love my Dewalt.

Don Ro · 10-20-2016, 08:06 PM

I have an impact wrench...19v, but I don't want to sacrifice it if the car battery is too much for my idea.
Alligator clips, and 15 feet of 6 ga. cables is what I have and have used.

nota · 10-20-2016, 08:57 PM

we used a 12v 1/2'' Milwaukee to drill holes in concrete
not a nicad no internal battery it ran off the truck 12v battery +cord
they are not cheap but should work

Don Ro · 10-20-2016, 11:11 PM

Are you referring to this one?
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https://www.amazon.com/Milwaukee-Electric-Tool-2403-22-Driver/dp/B00BYFND22

jpk · 10-21-2016, 04:53 AM

The drill will either have the torque to turn the scissor jack or it won't - getting power from a different source won't change that.
Running the drill of the car battery will just give you a much longer run time that what you would get off the internal battery. It will not make it any more powerful.

nota · 10-21-2016, 04:58 AM

NO BATTERY not a cordless tool
it has a cord that runs to the cars battery
to supply 12v power for all day use

the drill was an industrial unit
not something sold in a hardware store

nota · 10-21-2016, 05:19 AM

MILWAUKEE 1/2 CORDED DRILL/ DRIVER - 1000-1 - F&R - TESTED | eBay

Don Ro · 10-21-2016, 05:43 AM

Quote:

Originally Posted by nota

MILWAUKEE 1/2 CORDED DRILL/ DRIVER - 1000-1 - F&R - TESTED | eBay

I'm not sure why you posted this drill...it's a 115V AC unit.

aschen · 10-21-2016, 06:26 AM

It will work fine, but I think you will want to wire it directly to alligator clips for the Bat not through the cig lighter.

Inverter + AC drill is probably the better suggestion however

jpk · 10-21-2016, 07:30 AM

Why do you want/need to do this? As an engineer, I have to ask why you need to re-engineer the existing system...

nota · 10-21-2016, 07:38 AM

Quote:

Originally Posted by Don Ro

I'm not sure why you posted this drill...it's a 115V AC unit.

sorry you are correct that is 115v ac

but description said 12v
and it looked like our 12v DC corded drill

with all the cordless units out now Milwaukee
may have dropped the corded 12vdc units

Don Ro · 10-21-2016, 08:14 AM

Quote:

Originally Posted by jpk

Why do you want/need to do this? As an engineer, I have to ask why you need to re-engineer the existing system...

.
Gents,
As I have stated, I have 6 ga. cables with soldered large alligator clips for the car battery.
My Craftsman 19.2V portable drill lifts the car (scissors jack) quite easily but I obviously can't trust that its battery will last sitting in the trunk...thus the desire to have it powered by my car battery.
I could just crank the scissor jack manually but on a hot AZ summer day (110 degrees) I'd prefer to be able to quickly jack up the car using the car's battery DC power.
OK, I'm lazy...and I'm just putzing around w/this idea.

Hope I'm being clear.
.
Thanks for the ideas.

Hugh R · 10-21-2016, 08:29 AM

With my old camping trailer, to raise the scissor levelers, I used a big allen wrench in the chuck of my 19.2v Craftsmen cordless and kept a spare battery or two around and a 400 watt inverter to hook up to the trailer's double 12 v batteries. I also had/have a Honda 2000 watt generator.

nota · 10-21-2016, 09:28 AM

they make car chargers for some 18v li-x drill batterys

https://www.amazon.com/Ryobi-P131-Vehicle-Chemistry-Battery/dp/B0026SRQEM/ref=sr_1_1?ie=UTF8&qid=1477070796&sr=8-1&keywords=ryobi+car+charger

and the li-x battery's last alot longer without going dead
like an older ni-cad does

but a 12v to 110 inverter maybe the eazyer to use
if you have a good powerful 110 drill on hand

jpk · 10-21-2016, 11:22 AM

OK, now I understand the problem.

First task is to find a 12 volt drill with enough torque to turn the jack and lift the car. Once you find that, you can certainly modify it to run off the vehicle battery. Figure out the + and - terminals in the battery connection and solder some wires to them.

You will not need the 6 gauge wire - that would be WAY overkill. Think more like 12 or 14 gauge lampcord. There's a good chance the current draw will be under 15 amps (that will run a 180watt motor which is a lot to expect from a cordless drill) so you could use a lighter plug.

If you wanted to use your 6 gauge wire, you can buy a big inverter. You could then use just about any 120v AC drill short of a demolition hammer. I have an ancient Millwuakee 1/2 inch drill that will twist your wrist off; it only needs 580 watts max.
If you go that route, the drill will have a rating plate listing either watts or amps. If it lists amps, then multiply by 120 to get watts. Once you know the watts, you can get the right sized inverter.

Don Ro · 05:40 PM

Quote:

Originally Posted by jpk

OK, now I understand the problem.

First task is to find a 12 volt drill with enough torque to turn the jack and lift the car. Once you find that, you can certainly modify it to run off the vehicle battery. Figure out the + and - terminals in the battery connection and solder some wires to them.

You will not need the 6 gauge wire - that would be WAY overkill. Think more like 12 or 14 gauge lampcord. There's a good chance the current draw will be under 15 amps (that will run a 180watt motor which is a lot to expect from a cordless drill) so you could use a lighter plug.

If you wanted to use your 6 gauge wire, you can buy a big inverter. You could then use just about any 120v AC drill short of a demolition hammer. I have an ancient Millwuakee 1/2 inch drill that will twist your wrist off; it only needs 580 watts max.
If you go that route, the drill will have a rating plate listing either watts or amps. If it lists amps, then multiply by 120 to get watts. Once you know the watts, you can get the right sized inverter.

You're a Trooper, John!!!
Thanks for understanding and for the reply/info.
You too, gents.

Don Ro · 10-25-2016, 11:00 AM

OK...I need more wisdom from the PPOT gurus.
.
This is the Inverter I'm considering. I've been in touch with them and they say that mounting it in a Fiat Abarth turbo engine compartment (super hot in the AZ summer heat) ought to be OK due to it having a cooling fan.
However, it seems to me that the fan can only draw hot engine bay heat.
I'd then run zip cord to the trunk for a battery charger for the Milwaukee 2404-20 NEW M12 12V Fuel Li-Ion Cordless 1/2" Hammer Drill & 4.0Ah Battery that I just purchased off eBay.
.
At first I thought that I ought to run 14 feet of 0 gauge battery cable (their gauge suggestion) to the trunk and mount their Inverter back there so it wouldn't be exposed to so much heat.
Am I being too careful with thinking that it would be too hot up front in the engine bay?
TIA, gents.
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PS I hope that this is clear.
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1500 Watt Power Inverter 12 Volt DC To 110 Volt AC