The device is designed in such a way that it takes some time to recharge used batteries. I installed it on my 36v golf cart about a month ago. Six 6 volt batteries each measured 6.1 to 6.2 volts when I started, still the same reading, no improvement. I use the car every day, two 0.7 mile (1 km) trips with charging after each trip. I added a voltmeter to the dash to track progress or, in my case, the lack of it. I bought a specific gravity meter and think it's time to review it again to see if there's any improvement. I read everything I could about these anti aging supplements and had high hopes. The device makes a high-quality impression, although all the electrical components are "soaked" and may just be "junk". Impossible to say without destroying it. I gave him a star for his good looks. Maybe it'll do something in the long run. while poof.
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