I got a brand new VV mini splash from vapecore.com shan's mods, and a new set of 14400 900 mAh batteries and charger from amazon. I am using a map tank with a 3.2 ohm ce2 version 5. I am running the mod at 3.7 and 4.5 volts. Now, here is the problem, I fully charge the batteries they will read 4.18 volts when fully charge; pop them in the mod and vape for about 3 hours then is dead. I check the batteries and one reads 3.85 volts but the other one reads 2.4 volts or so, then no more vapor or very little. Why is only one battery being drained but the other one isn't? Do you think is the battery or is it the mod? Is this normal? I am heavy vaper (4 - 5 ml a day) how long should I expect the batteries to last vaping like I do? Thank you very much for any help you can provide!
I have quite a few VV boxes: Big Splash (the larger box with the digital voltage indicator on the bottom) by Shan, 3 Madvapes VV boxes (I love them), and the entire VV "family" from Ken's Box Mods---Little Sister, 2 Big Brothers, and a vari-cool Big Daddy.
From your description, one of your 14500 batteries might be defective. Using a VV powered by two 14500s at the voltages you mentioned
should provide more than three hours per charge cycle. That's hard to say with certainty, however, since you're a heavy vaper using just that one VV box. I'd think you might get 4-5 hours per charge. The fact that one battery is completely drained to the point of protection circuitry shutting it down is suspicious, though.
Did you buy just TWO batteries? What a pain that must be---being unable to vape while waiting for your
only pair of batteries to recharge. I have
24 14500s because 8 of my mod boxes use them, singly or in pairs. The AW hi-drains are great, but pricey. Happily, however, either the solid blue or red/black flame Trustfire 3.7 volt 900mAh protected 14500s are quite good, although their mAh ratings are exaggerated. They're actually closer to 600mAh. No matter, though. Best of all, they're inexpensive: $4.37/pair with free shipping from DealExtreme, if you can wait the ten days or so for them to arrive from China.
$4.73 - TrustFire Protected 14500 3.7V 900mAh Lithium Batteries (2-Pack Blue) - Batteries
Your VV box is fine.
Get more batteries! Four more at the very least. Keep them in pairs and use them in rotation (one pair, another pair next, then another...).