This is a fairly good tutorial about charging car batteries.
I'd take a chance on this charger but I would also leave a volt meter on
it and make sure the voltages are somewhere close to the above tutorial
before I trusted it. 1.5 amps can indeed charge a completely charge a
dead car battery, but it will take days to do it.
I used to go through a lot of batteries on my 2 1970 husky bolens garden
tractors. They supposedly never had the best charging system. To make
things worse, sometimes they sit for months at a time without being
used. I put a similar charger on both of them and it's made a world of
difference. Batteries that only lasted 2 years now are going on their
5th year and are still going strong.
I won't pick it apart line by line, but right off the bat it has
glaring errors and omissions. One of the first things he says is that
you won't find proper 3-stage chargers at Walmart or auto parts
stores. That's just complete bullshit, leading me to immediately
question if the writer knows anything at all, or if he is just making
stuff up, or misquoting things he "heard somewhere"
I wouldn't call that a "fairly good tutorial" at all.
It covers the basics for those who don't know the basics not going to
deep to go over their heads. And yes, I bought one of my
charger/maintainers at WalMart but they haven't had that or a similar
unit in stock in the past 3 years. Three years with no battery
maintainers. Maybe your walmart is different.
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