DrewE wrote:
westend wrote:
drifter_wayfarer wrote:
Thanks everyone to your replies. I looked up the specs of my B&D unit, and it says:
450A instant/900A peak jump starter
500W power inverter
Dual 120V 500W AC power outlets
So looks like it does provide large instant amps...is that not enough to meet the surge requirement?
I looked up the Tripp Lite inverter unit that was recommended, and it's $250, quite a bit more than what I am hoping to spend. I only need a freezer for a 2 hour trip...
That's a misprint. Should be 900W peak and 450W instant, not amps.
I don't think it's a misprint, but it has nothing at all to do with the inverter. It's for the jump start feature, and the currents don't sound out of line to me. A 900W peak jump starter would be of limited use; my Onan generator starter needs more power than that to crank its little one-cylinder generator motor.
You may be right about "misprint" but those are outlandish claims. If you try to send 900 amps through typical jump pack starter leads, there will be melted wire and a possible fire.
The OP's dilemma is that the inverter is incapable of handling the duration of the LRD of the freezer. A bigger inverter will do the job but the inverter will need the power to do it and that is probably best had through short, larger cable at the vehicle's battery. A cigar plug in the vehicle won't handle the larger amp draw of the LRD.
