Dna 250c Discussion.

I have a variable W/V battery and I prefer it on 4.2, but it is expensive and I never get the full 300 charges out of them like they claim they are supposed to get. Will decreasing the voltage by 0.4 Volts increase the battery life to a significant extent that makes it worth while?  

I have a variable voltage/wattage battery and I have heard that some say charge it as often as you can this reduces stress, others say that's bad, some say a combination of long and short cycles but I don't know which is best. My battery's manual said get down to 10% but it doesn't measure it accurately (but I love these batteries so I don't want to change but they are expensive so I want to prolong their life span as long as possible even if that does mean charging them very often.) I do have two so charging often isn't an inconvenience for me if that's what I am supposed to do.  

I ordered two of these batteries from FastTech. The cheap price and high capacity (without having a mod or some awkward huge battery) attracted me to them. Some two weeks later they show up...

I have two Puff King chargers that came with starter kits we bought at a B&M store. We've been using them with Tripl3 eGo batteries, one Puff King battery (and another Puff King battery, which was taken back and exchanged for another eGo-T battery, which broke), and so far no problems screwing any batteries in. These two from FT show up however and neither will screw into one Puff King charger, but they both did into the other (same charger, down to the model number and everything). Now, one battery from FT still screws in, but the other doesn't.

I took the non screwing in battery to a local B&M store and the guy there was able to screw it into one of their chargers. He handed it to me, and I unscrewed it, screwed it back in, unscrewed it again, and then neither of us could screw it in again. Now I have one battery from FT that will screw into one of my chargers, but not the other. The other battery will charge, but it has to just like sit in the charger and hope the connection stays okay for it to charge. I still have no problems screwing any of my other batteries into either charger, just these ones from FT. Also, it's worth mentioning that the FT batteries never seemed to screw in right... it always felt weird and finicky getting it to go in.

What's up with these batteries? They claim to be eGo/510 threaded, just like my other batteries. They look just like my other batteries too, except they won't screw in right...  

I ordered a SXmini SL class with the sx485j chip and it recommends a 35a battery. I only use .15ohm coils at 60 watts so I should be good with a samsung 18650-35E right? Going to buy 21700 batteries once these start losing their charge because I just got them recently..  

A long time ago, talking to a friend who's an electronic engeneer, he advised me to do something and so far works beautifully. It's specially true of cellphones and integrated battery stuff, so you might as well do it to your iSticks and your Kindle as well.

When you receive a new device that has an integrated battery and charger, both have circuitry controlling the charge. The first week of use or so (in the case of the Kindle the first few weeks or months) do complete discharge (until it shuts down completely) and charge completely cycles. This calibrates the battery and the charger to make a more efficient use of the energy.

Just now I'm putting a new iStick 30 though its paces. First day lasted me about 6 hours. Second day almost 8. Yesterday a full 12 hours. Doesn't matter the voltage. Charge it completely and discharge it completely a few times. You'll see how performance increases dramatically.  

So last night I guess I was more tired than I anticipated and forgot to unplug my charger before knocking out. I was charging a 18350 battery. As soon as I woke up I remembered and immediately unplugged the charger. I left the battery sitting all day and just checked it on my multimeter and it reads 4.18 volts. I also checked it on my sigelei and it read 4.2 volts. I am th overly cautious type though so I just wanted to ask you guys if you think the battery is still safe or if I should properly dispose of it.  

Now that I have gotten into unregulated mods I've been doing a lot of reading about batteries... well actually I had started reading before but now that I am actually using them I want to know more.

One thing I am a little puzzled about is that you should recharge a battery when it's about 2/3 discharged and you should never charge a battery that is completely discharged. My questions:

1. How do I know the level of discharge in my battery? - I don't own a multi meter
2. What do you do with a fully discharged battery? - just chuck it?  

I bought my Sigelei 100w Plus a few days back and ordered 2 Sony VTC4's on my same order (I'm confident they're legitimate, I've bought some before) to be able to marry them together and use them with my Sigelei. Upon receiving the batteries, I labelled one A, and one B and put them into my charger at the same time (charger was off, put both in and turned it on), one battery is slightly more charged than the other (it's 2/3 bars, while the other is still 1/3). I'm a bit worried about using married batteries, I understand rotating A and B in my Sigelei and charger but will they be the same charge when they're done? They're new batteries and they both went on at the same time yet one of them is charging a little bit faster.

When both of the batteries are fully charged, will they be safe to use and cycle accordingly? I heard about if one battery has even a tiny bit less, the batteries will take an uneven load and it will make it risky. How do I ensure that these batteries remain married?  

I have a battery that is capable of going up to 6.0 V but the chart that came with the battery did not have 1.6 Ohm listed on the chart, it skipped from 1.5 Ohm to 1.8 Ohm.
I just need to know what the max amount of volts that I can use with this coil without reducing it's life expectancy to much.

- Also is there any reason to prefer variable wattage mode over variable voltage? because I always use V/V mode never even tried V/W.  

I am not sure where this should go but this was the best place I could see. Anyway I need a bit of help here it should not be too hard. I am look to build a dual 26650 variable voltage cordless power supply for electroplating small parts . I need to be able to vary the voltage from about a .5 volts to 3.5 volts if it possible average voltage about 2 volts I would like it to compensate as the battery runs down a bit don't have to perfect but just help it keep the voltage steady so it will need to have a volt meter I see those all over in the diy mech mods
So I want to use a dual 26650 battery sled
A 1 amp usb charger port
I need a project box big enough
digital volt meter
I would think a mosfet to vary the voltage with a potentiometer
resetting fuse
and I would guess A piece of that project board stuff with all the hole in it like a for building stiff like this on I can't for the life of me remember what they call that board I built small projects on this stuff when I was kid so that was some time ago LOL it just a board with lots a little hole in it it's a sort of a PCB

I have a basic idea for this thing but last time a built any kind a power supply it was in high school and I am 53 now so I am rusty as Hedouble toothpicks LOL. So I really use a bit of help from someone that is good with this stuff I am sure I can build it that not the problem is getting the right values and wiring diagram and finding sources for the parts I sure one I have a wiring diagram and the values I can google most of that stuff but tips pm someplace maybe you got stuff from that has good prices and don't take a 100 year to ship LOL

In the end this will be the power supply for a silver plating with I have hope to maybe add some little videos picture and stuff of it. this will be kinda fun and I want guys to see how easy and cheap it is to electroplate silver for your box mod so when I done with the power supply I will do a tutorial help fold out in return for help with this
I will be doing stuff like nickel silver platinum. even gold plating

Any help with this would be great if it works out maybe I can plate some small parts for you as a thanks