Battery Jumper Pack
Elder User
Joined: Dec 2006
Posts: 718
Likes: 2
From: Chattanooga, TN
Guys, last year I purchased off the internet a Schumacker PSJ-3612, 3600 peakamps, 470 cranking amps, 385 cca, cables are 2 ga, AWG x 55" long and 38 lbs. A little pricy, but maybe not too much for these trucks. The batteries in this unit are replaceable. My previous unit was stolen from the truck in the driveway a couple of years back.
Fleet Mechanic
Joined: Jul 2003
Posts: 1,614
Likes: 22
From: Springfield, PA
I have an old (5 years?) jump battery. It'll never start the truck with dead batteries, but when I park my truck at the airport for a week in the dead of winter, I'll leave it in the truck and I hook it up right off the bat after cycling the GPs. This way I have "three" batteries to spin that frozen motor over faster. The slower the starter turns, the more amps it draws and the quicker the battery voltage drops.
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Lead Driver
Joined: Jan 2006
Posts: 7,308
Likes: 250
From: Hartford, WI
I have an old (5 years?) jump battery. It'll never start the truck with dead batteries, but when I park my truck at the airport for a week in the dead of winter, I'll leave it in the truck and I hook it up right off the bat after cycling the GPs. This way I have "three" batteries to spin that frozen motor over faster. The slower the starter turns, the more amps it draws and the quicker the battery voltage drops.
Fleet Mechanic
Joined: Jul 2003
Posts: 1,614
Likes: 22
From: Springfield, PA
As the others have already posted, I doubt there's much portable out there that will provide the needed power. When my batteries failed In Mass one winter, the tow company that AAA sent out was a diesel and used two sets of battery cables to get me started.
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