you could use an 'automatic circuit breaker' .
ask at your FLAPS..
it's a small box about an inch long with studs on top for connecting
wires  to.
or just google it ..little usually black or metal box with studs on top.

they come in various amp ratings.   10 amp should do.

On 7/1/2015 4:26 AM, Steven Shelton wrote:
> I test my electrical work and 12V devices using a jump starter battery and
> a cigarette lighter plug with two alligator clips attached.  The plug has a
> Buss 10 amp fuse in it.  My limited electrical knowledge results in a lot
> of blown fuses.  Is there a 10 amp breaker that I could wire into the
> tester so I won't have to keep buying boxes of Buss fuses?
>