Battery power is still an exception to the rule in light box design. That made battery power and cord length an important marker of quality in all our picks for the best light boxes.

The next step was to build a simple battery box to house the battery along with a 12-volt cigarette lighter outlet we could use for a portable electric tire pump or perhaps a 12-volt light source.

Q. I’m writing about the fellow’s battery that keeps going dead (“Auto Answers,” Dec. 11). It happened to me once. The reason the battery kept going dead was due to the glov… ...

To complement the battery box, we also ordered a battery cutoff switch (PN SUM G1432) from Summit; at less than $20 it's a steal. The switch will allow us to shut the battery off in the case of a ...