Well I got my first Sony VTC4 batteries in August of last year, from Illumination Supply, and more of them a month later and having 12 of them I rotated them through my Poldiacs since then. Lately it seemed to me they were running out of charge pretty fast, so I charged up one that seemed to run out very fast, got it to 4.2 volts, put it in my Poldiac, filled the genny, and proceeded to vape.
Previously one of these batteries would get me through an entire tank of juice, 3.5 ml, and I'd swap it out around 3.8 volts, but this time it would not even last for a dozen hits before it was drained down to 3.7 volts. Obviously this battery has exhausted it's useful life, and some of my other VTC4's are now showing the same behavior.
I have been using 12 of them in rotation and in less than a year they are dying on me. I had expected better. Having never gotten batteries to this point before, even using other brands well over a year I have to ask, is this normal for Sony batteries?
Previously one of these batteries would get me through an entire tank of juice, 3.5 ml, and I'd swap it out around 3.8 volts, but this time it would not even last for a dozen hits before it was drained down to 3.7 volts. Obviously this battery has exhausted it's useful life, and some of my other VTC4's are now showing the same behavior.
I have been using 12 of them in rotation and in less than a year they are dying on me. I had expected better. Having never gotten batteries to this point before, even using other brands well over a year I have to ask, is this normal for Sony batteries?