Made in USA
* One joule is defined as: The work done to produce power of one watt continuously for one second; or one watt second.
My two older ones stopped working after about three years. I opened one and found it badly corroded. It might have lasted longer if I had kept it dry. I am ordering another one because they work so good. They show about 7000 volts on my meter. I have had lots of expensive chargers, but this is still one of my favorites.
"Love these chargers"
I have 2 of these chargers we use them year round at our barn and while camping and they work great! We use a pick-up battery and only have to re-charge the battery about every 4 weeks! We have been using them for 2 or 3 yrs and no problems at all..