Keep Charger/Jump Starter?
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Tuned
Joined: Oct 2015
Posts: 262
Likes: 0
From: Roswell
Keep Charger/Jump Starter?
I bought a jump starter/charger for my 2002 7.3L Diesel. It's a Schumacher 6/12V Manual Wheel Charger with Engine Start, 4/30/60/300A. When I've used it for jump starting the Diesel at 300a, the cables seem to get real hot very quickly. I spent $219 and wonder if I did the best I can do. I've seen comments on the forum that people use two batteries to jumpstart these vehicles. As a general rule I see myself using it to charge batteries. I don't know if the fast charge is a problem with the batteries but it is convenient. I also have two of the small chargers 12/6v 2amp/6amp(I think). I wish it would shut off when charged, the timer is a pain, sorta. Thoughts?
Elder User
Joined: Aug 2013
Posts: 588
Likes: 14
This is sound advice. Our Trucks take upwards of 720 Amps to start. Consider a Schumacher SE-1-12S-CA Fully Automatic Onboard Battery Charger - 1.5 Amps.
Senior User
Joined: Mar 2007
Posts: 491
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From: Kingsland, GA
+1, Schumacher has never let me down for the price. They are electronic, they die just like your alternator or any other electrical device.
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Tuned
Joined: Oct 2015
Posts: 262
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From: Roswell
Keep Charger/Jump Starter?
So I would need just 1 plugged into I'm guessing the passenger battery terminal?
i ain't rite
Joined: Mar 2005
Posts: 65,598
Likes: 5,626
From: Marlboro Mental Hospital.
when using that large wheel charger, set it to 60 amp for 10-15 minutes before trying to start to put a surface charge into the batteries. then after 15 minutes flip the switch to 300 and it will crack rite off.
Post Fiend
Joined: Apr 2002
Posts: 19,311
Likes: 97
From: Waterloo, Iowa
Recall any charger needs to be "sized" for the Ah reserve of the battery. Two in parallel is a large amount of capacity, the 30 amp setting would essentially be a "slow" charge. Stay on top of them so they will stay equalized.
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