Souped up cordless drill

[fishinnut]

I'm in the process of souping up my 18 volt Dewalt drill and six inch lazer with adapter for the coming season. Saw a post where a guy rewired an old battery pack to connect to two 12 volt 9 amp batteries wired for 24 volts. Drill has more power and runs all day long. Batteries are carried in a soft cooler inside a backpack. Open for comments...

[Drifter_016]

I built a lathe for turning floats and fishing rod handles/reel seats out of an old 7.2V Makita that runs off either a 12V power supply or 12V battery. Modding things is cool!!!!!   

[Kevin23]

I'm in the process of souping up my 18 volt Dewalt drill and six inch lazer with adapter for the coming season. Saw a post where a guy rewired an old battery pack to connect to two 12 volt 9 amp batteries wired for 24 volts. Drill has more power and runs all day long. Batteries are carried in a soft cooler inside a backpack. Open for comments...

That would fry your drill. He had them wired in series so it was 12v 18amp.

[Drifter_016]

I am running 12V into a 7.2V drill.
It's possible that the drill might over heat with a lot of use, but they are protected from overheating by a thermister.
If it over heats the power is cut.

[fishinnut]

That would fry your drill. He had them wired in series so it was 12v 18amp.

He stated:

I picked up a couple of the same class batteries the IceGator uses, 12v 9ah SLA and wired them in series for a 24v output. The drill is overpowered by 5 volts, but that's nothing for a DC motor.

He has used this system for several years and has had no problem. I tested my drill with two 12 volts wired for 24 volts (jump neg to pos and one batt neg to motor and other batt pos to motor) and it ran fine, no smoke, no smell, nothing but pure power..

[Voltaire]

I'm in the process of souping up my 18 volt Dewalt drill and six inch lazer with adapter for the coming season. Saw a post where a guy rewired an old battery pack to connect to two 12 volt 9 amp batteries wired for 24 volts. Drill has more power and runs all day long. Batteries are carried in a soft cooler inside a backpack. Open for comments...

Just buy a 24v drill.

[Kevin23]

I agree, buy a 24v drill. If you are planning on drilling more than 1 hole at a time, you will likely fry the motor. You wont be able to go drill a line of holes, you will have to let the drill cool down between each hole.

[dkfry]

http://www.makita.com/en-us/Modules/Tools/X2/

If the drill has replaceable brushes and parts available it is a better candidate for upping the voltage because you can maintain it. Some drill motors are sealed endbell junk and not serviceable. Some drills may not be able to handle the extra voltage. And 5 extra volts can make a big difference in something that runs great without issue to something that ends up turning into a puff of smoke.(like running 3s on components designed for a 2s max input voltage.

[fishinnut]

I agree, buy a 24v drill. If you are planning on drilling more than 1 hole at a time, you will likely fry the motor. You wont be able to go drill a line of holes, you will have to let the drill cool down between each hole.

I've used the stock drill on numerous trips to drill many holes without a problem.

[Voltaire]

just by a 36v drill