VMAX Charge Tank Battery Reviews?

landyacht318 wrote:
How many deep cycles accumulated in those years? To what average depth?

How are you determining they are 'still going strong?'


Not saying they are a good or bad battery.

On automotive forums, the nimrods there( concerning batteries) will say their battery is 'still going strong' for X years now, then the next day, it fails to start their engine and their 'still going strong' claim was obviously absurd.

If they had a voltmeter wired to their battery and observed it every engine start in those subsequent years, they would have not said still going strong, but that the voltage held every engine start has been declining in a mostly linear manner, but lately it seems to have dipped further, then one day it failed to start.

Regarding deep cycling, one could observe voltage held under X amount of load, with X amount of AH removed from the battery, and compare it to when teh battery was newer, and see the trend, how well capacity is being retained, but without this data all one can say is that it still meets their needs, whether their needs draw the battery to 90% state of charge, or 60%.

My most recently AGM replaced battery, still holds a very surprisingly high voltage, when powering normal overnight loads. It was also my engine starting battery. The day before I got a new battery it almost failed to start my warm engine in mild ambient temps when fully charged. Now it is in my workshop being light cycled and still maintaining over 12.7v when I turn everything off.

If I did not have the starting voltage data and the slow cranking, and judged its health solely by the voltage held in my workshop's evening loads previous to that, my regular overnight loads, I could make the 'still going strong' claim, but the ~180 amp load of my starter motor tells a very different story, as does the fact that amps never can taper to the level it is considered full.

Without Data, all it is is opinion, and perhaps wishful thinking with a whole bunch of fragile ego involved.

The Vmax tanks do seem to be pretty heavy for their group size, but I hardly trust amazon reviewers to have any inkling about battery performance other than it works or it does not. If it fails early most are completely oblivious about what a proper full recharge entails.

If it has not failed yet, it is 'still going strong' without anything to support that claim.

1. I don't care to study every milliamp going in and out of my batteries.
2. It was a simple observation that I was passing along. Going strong to me just means they still take a charge, hold a charge and last until the sun hits my solar panel again. That's all some of us need. We don't all need to know every detail down to a nat's ass like you.
3. I was referring to battery comparisons, not amazon reviews.
4. Go piss up a rope with your nimrod and fragile ego comment.