BLACK+DECKER 600/300 Amp Jump Starter Box w/ USB (J312B)

from MMC41480

I used this to jump start my car and it worked perfectly. It definitely holds the charge too.

from ChuckA

Charged easily, started my dead-battery car on the first try. Have only had it a few days, but I have great hopes for it.

from MMC41480

I used this to jump start my car and it worked perfectly. It definitely holds the charge too.

from ChuckA

Charged easily, started my dead-battery car on the first try. Have only had it a few days, but I have great hopes for it.

from Phisheh

Bought this because my car was having issues with the battery, needed a jump start here and there. However, having it plugged in for weeks, trying to use it and as soon as we connected it to the battery, the dang thing dies! Every time we try to use it, we hook it up, and it dies instantly! Not w...