wbw6cos Posted November 9, 2021 Share Posted November 9, 2021 I have a Prestone jump box (12 v) booster, which is about 20 years old. It has been sitting in a non-used condition for quite a few years. The charger cord for it plugs into power outlet (cigarette lighter type plug) on the box which plugs into standard household outlet. The last time I charged it using the cord, it never fully charged. My question is, will it take a charge if I hook my CTEK 4.3 charger to it? Maybe the smart charger can restore it? I just checked and the voltage is 11.55 v. I like the portability of it for using it to power a small Slime air compressor, pre-heating Gerbing gloves, and such as the like. That would be about the only need for it. Not to jinx myself, but as far as car batteries, I do not really............................................. 'nuff said. I was just wondering if it is even worth trying to charge it, or just dispose of it properly. I suppose I could go ahead and just try, but I use the CTEK on my R 1200 C while it sits for the week, waiting for its turn in the weekly rotation with the RT. I know it may take a while for the CTEK to do a thorough job of bringing some life back into it, but I thought I would ask the technically savvy board members first. Cheers, Link to comment
Skywagon Posted November 9, 2021 Share Posted November 9, 2021 I have a similar one that’s about 20 years old. Different brand. It has a 12v battery similar to our bike batteries. I’ve change it several times over the years and it’s still works fine. Mine also has a small ac converter on it. I carry it in my boat. I’ve jump started numerous neighbors cars I think they are worth the price of a new battery and are a great tool to have 1 Link to comment
wbw6cos Posted November 14, 2021 Author Share Posted November 14, 2021 I have pulled it apart to get at the battery. I have it on my Optimate 6 and it is de-sulfating. That explains why it would not take a charge. I decided to hook directly to the battery (with it out) because when I hooked it up to the jumper leads, the Optimate 6 did not work to its potential. I think all the little extras insidemprevented the Optimate from getting a true reading from the battery. It seems to be working on the it now. We shall see. Link to comment
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