Problem when convert 12V cordless drill to cord drive

[ga1135]

I bought a 12V cordless drill with 22 level screw driver torch and drill functions, then rig a 30 ft cord line for it (thick red/black line with 25A fused car plug).

When running the drill in battery, it is powerful and no complaint.

When runing it with the 30 ft cord :
1. the speed & torch weaken.
2. when screw driver torch is engaged, no "Tat Tat" sound as usual, then the car plug melt (the fuse not blown).

Surely something wrong but don't know which part and how to fix it.

Appreciate it if you guys can help. Thanks a lot.

 

[oldharry]

If the car plug has melted then either it was carrying a far higher amperage than it was designed to do, or there was a bad contact which was overheating on load. Sounds like the second one as what you describe the drill was getting low voltage. Get a better means of connecting it to the battery (pair of croc clips if the battery is accessible?) and all should be well.

 

[mikelilly]

mike lilly

Im sure that you will find the longer the cable is the more power you will lose that also goes for 240 volt maybe thats the problem hope fully others can advise

 

[Bilgediver]

I bought a 12V cordless drill with 22 level screw driver torch and drill functions, then rig a 30 ft cord line for it (thick red/black line with 25A fused car plug).

When running the drill in battery, it is powerful and no complaint.

When runing it with the 30 ft cord :
1. the speed & torch weaken.
2. when screw driver torch is engaged, no "Tat Tat" sound as usual, then the car plug melt (the fuse not blown).

Surely something wrong but don't know which part and how to fix it.

Appreciate it if you guys can help. Thanks a lot.

These drills take a high current and possibly even more than a cigar lighter can provide safely. You will need to use the correct cable and possibly use crocodile clips to the battery terminals.

 

[sarabande]

car plugs are usually 15 amp, so the load clearly exceeds that limit, but not enough to blow the in-line 25amp fuse.

Follow the suggestions to route the cabling directly to the battery. If this is the regular pattern of use, you will do best to set up a high amperage plug and socket.

20 amp car power sockets are available
http://www.the12voltshop.co.uk/Shop/plugs-switches-sockets-and-adaptors/12v-plugs-and-sockets-auto-/
but this may not be enough, especially when the drill is suddenly placed under load.

 

[gordonmillington]

I converted an old 12 vlt cordless drill in which the battery was finished to a 12 volt cord drill for my yacht. Used very heavy cable and croc clips onto the battery, Works very well.
A good example of recycling!

 

[Ansell]

If the drill has a lithium-ion battery remove it. They are inclined to blow up without the appropriate electronics. I've seen it happen.
Jonathan

 

[ga1135]

How heavy the cable ?

I converted an old 12 vlt cordless drill in which the battery was finished to a 12 volt cord drill for my yacht. Used very heavy cable and croc clips onto the battery, Works very well.
A good example of recycling!

May I know how heavy and how long is the cable you use?
Does it turn hot when using the drill ?
Thanks.