I'm use 2 Tenergy RCR123a stacked batts on my Prodigy V3. When the batts die, one batt measures around 3+ volts and the other one measures zero. When I charge them they both are in the 3+ volt range. Why is one draining while the other isn't? I get consistant vaping until the one dies. When I put them on the charger, the red light on the one that is around 3+ turn green long before the other one.
Battery drain problem
- Thread starter tmcase
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I've noticed this with my Tenergy batteries, too. I think the battery on the top is going to drain faster, since it's actually making the connection to the button section. What I've started doing is vaping for a couple of hours or so and then rotating them. It seems to help a little bit as far as I can tell.
Thanks WOH, I'll try that but I would sure like to know why this is happening. It makes me wonder if I'm actually getting 6 volts half way through the batt life. The vapor & flavor does seem consistant though until the batts die.
tmcase,
I mark my Batts 1-A, 1-B ,, 2-A, 2B and keep them in sets like this, I try to switch them after each charge cycle by putting A on top on my first run then B on top my 2nd run on my Mod. This keeps them draining evenly and your top batt is always going to drain 1st. This will allow your set of Batts to run an equal life span instead of one Batt always dying befoer the other, or close to it.
I mark my Batts 1-A, 1-B ,, 2-A, 2B and keep them in sets like this, I try to switch them after each charge cycle by putting A on top on my first run then B on top my 2nd run on my Mod. This keeps them draining evenly and your top batt is always going to drain 1st. This will allow your set of Batts to run an equal life span instead of one Batt always dying befoer the other, or close to it.
Yes, I had to do that with some 14500 batts that I got because 1 of the 4 was draining faster than the others. By doing this I was able to pin point the bad battery. I had forgotten about that until you mentioned it. I only have 1 set of RCR123a batts so wouldn't it be safe to assume that one is bad?
Do I have a bad battery or is this common and I just need to rotate them?
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I number mine in sets (I have set 1,2 and 3) I never thought about the A and B part though. Great idea!
I think this is potentially a dangerous situation. When one battery is significantly different in voltage, the lower voltage battery tends to draw heavily on the other battery. It could possibly cause over heating of the good battery with an explosion and flame.
Just saying. Hopefully you have a back up PV. I would discontinue using those two batteries until I got a couple of replacements. Then discard both of them. Start with a brand new matched set.
For safety sake. Don't take a chance on blowing up your prodigy in your face. That is one inherent danger of using stacked Lithium Ion batteries. Always use matched batteries (voltage wise and brand wise).
Just saying. Hopefully you have a back up PV. I would discontinue using those two batteries until I got a couple of replacements. Then discard both of them. Start with a brand new matched set.
For safety sake. Don't take a chance on blowing up your prodigy in your face. That is one inherent danger of using stacked Lithium Ion batteries. Always use matched batteries (voltage wise and brand wise).
This might be of help. Down toward the bottom they talk about uneven battery drain.
Serial and Parallel Battery Configurations and Information
Serial and Parallel Battery Configurations and Information
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