OK, with the battery you described, you should have been able to get something. It doesn't sound ideal, though. Look at the "Rated Output". This pack puts out 5 volts at 500mA. The 5 volts is just fine, even a bit high for some people's liking, but you really want something that will output at least 1000mA. These atomizers can draw well over 1 Amp. Most "off the shelf" batteries that come with our e-cigs are between 3.6 volts and 4.2 volts, and I believe they only have a capacity of about 130 mAh. The other thing to keep in mind is that mAh is not the same as mA.
Milliampere-hour (mAh): A battery capacity or rating. A battery that provides a current of 1000mAh for one hour is rated at 1000mAh (or 1 Ah).
Milliamp (mA): Is the unit of measure of current. It is equal to 0.001 amperes.
I personally would suggest to try to get as close as you can to 4.2 volts and about 1000mA/1 Amp, maybe even 1500mA/1.5 Amps. Then, the higher the capacity (mAh), the better. If you are plugging in with a wall transformer, you would try to do the same. If you are using USB, then you will be around 5.0 - 5.2 volts and I think it is either 500mA or 1000mA. In any case, USB works pretty well. The only issue I have had with a USB connection is when I tried to connect it to a wall USB charger. For some reason, every one I tried would not work. However, the one I have that plugs into my car-lighter socket works just fine, and any USB port on my PC or laptop or hub works fine. Still haven't been able to figure that out.
My next mod is going to use the 18650 battery. It is 3.7 volts and rated at 2400mAh. It should last me all day at work, maybe even more.
I have a "magnum" mod i made that uses 2 CR2 batteries. Each one is 3.0 volts and 800mAh. Together they give me 6 volts and 800mAh. I did try one CR2 by itself, but it really isn't enough to do the job. Kindof like an almost dead battery that came with your e-cig.
OK, I think I have rambled on enough. I hope some of this may help. There is a ton of stuff you can do, you just have to either get ideas from the Modders Forum, or come up with some yourself. I have had a lot of fun making all of my mods.
Milliampere-hour (mAh): A battery capacity or rating. A battery that provides a current of 1000mAh for one hour is rated at 1000mAh (or 1 Ah).
Milliamp (mA): Is the unit of measure of current. It is equal to 0.001 amperes.
I personally would suggest to try to get as close as you can to 4.2 volts and about 1000mA/1 Amp, maybe even 1500mA/1.5 Amps. Then, the higher the capacity (mAh), the better. If you are plugging in with a wall transformer, you would try to do the same. If you are using USB, then you will be around 5.0 - 5.2 volts and I think it is either 500mA or 1000mA. In any case, USB works pretty well. The only issue I have had with a USB connection is when I tried to connect it to a wall USB charger. For some reason, every one I tried would not work. However, the one I have that plugs into my car-lighter socket works just fine, and any USB port on my PC or laptop or hub works fine. Still haven't been able to figure that out.
My next mod is going to use the 18650 battery. It is 3.7 volts and rated at 2400mAh. It should last me all day at work, maybe even more.
I have a "magnum" mod i made that uses 2 CR2 batteries. Each one is 3.0 volts and 800mAh. Together they give me 6 volts and 800mAh. I did try one CR2 by itself, but it really isn't enough to do the job. Kindof like an almost dead battery that came with your e-cig.
OK, I think I have rambled on enough. I hope some of this may help. There is a ton of stuff you can do, you just have to either get ideas from the Modders Forum, or come up with some yourself. I have had a lot of fun making all of my mods.