Leaderboard

It's time for electronics 101, and how it applies to PVs. Current flow (measured in amps) is the movement of electrons through a conductor. These electrons are sent out by the power source (volts) to act as the workers, and resistance (measured in ohms) is in the path of current flow and will slow the electrons (workers) down. Power (measured in watts) is the measurement of work being performed in the circuit, and will always manifest itself in the form of heat (doesn't that sound like heating up an atomizer to you?). Of course too much heat (power/watts) will pop the atty. Now for the math, and I promise it's not that complicated: A physicist by the name of George Simon Ohm discovered that there is a tight relationship between voltage, current, and resistance. This relationship can be described and predicted by mathematics, which has become known as "Ohm's Law". The basic statement of this relationship is that voltage and current are directly proportional (when we increase voltage, current will increase as well), and that current and resistance are inversely proportional (when we increase resistance, current will decrease). Voltage = current multiplied by resistance Current = voltage divided by resistance Resistance = voltage divided by current Power = voltage multiplied by current Now let's apply Ohm's Law to a PV: A 3.7v device with a standard atty; Voltage 3.7v divided by an atty that is 3ohms = 1.23amps The heat produced by this is determined by the power in watts which is 3.7v multiplied by 1.23amps = 4.563watts We know this works, and we can use these numbers to compare the performance of the other combinations. A 3.7v device with a LR atty; 3.7v / 1.5ohms = 2.46amps 3.7v * 2.46amps = 9.126watts (remember, this is the heat) A 5v device with a standard atty; 5v / 3ohms = 1.66amps 5v * 1.66amps = 8.33watts (remember, this is the heat) A 5v device with a LR atty; 5v / 1.5ohms = 3.33amps 5v * 3.33amps = 16.66watts (remember, this is the heat.....POP) A 6v device with a standard atty; 6v / 3ohms = 2amps 6v * 2amps = 12watts (remember, this is the heat...on the bourder of POP) A 6v device with a HV atty; 6v / 4.3ohms = 1.395amps 6v * 1.395amps = 8.372watts (remember, this is the heat....is this really any better than a standard atty at 5v?) My ohm values for the attys are approximate, but you get the picture. This really answers all the questions "will this work with this?", "will that work with that?". I also think that anyone dabbling in making their own mods should understand these basics when choosing components that will work well together, and avoid injury.

Only fly in the oinment I can see is the current limiter in the protection circut board on the batteries.These limit the current to prevent an axplosion caused by rapid discharge of the cell.The only time you could really get the full current flow would be on a unprotected battery or a straight passthrough hooked to a large enough power supply.

Very well could be that the batteries are dying--how long ago did you get them?? The best thing I invested in and learned to use a multimeter to check the battery voltage (works great for atomizers to)--I know other things can affect voltage reading--but for me it has help me determine dead, dying or some other problem. Using multimeter for 510: here we go..first set your meter to 200 OHM the touch the red probe to the black probe and you should get a reading of 00.0 if you dont and you get something like 00.2 just subtract the # from the reading you will get from the atty. Ok put the RED probe into the small hole on the battery side and the Black probe into the small hole on the SIDE of the atty or on the thread you should get a reading of 2.2 - 2.9 thats a good strong atty if you get anything above 3.2 send it back..lol the lower the # the better Now the battery is done the same way EXCEPT set the meter 20v in the DCV section RED to the metal (Dent) on the battery or if you have a Mega just put it on the end that connects with the atty and the Black try and put it on the little gold band You will need to have someone hold down the batt switch while testing ..A half charged battery should read 3.6 - 4.2 I got a multimeter like this one: http://www.amazon.com/Mastech-DT830B-Palm-Size-Digital-Multimeter/dp/B00066ZZO4/ref=sr_1_1?ie=UTF8&s=hi&qid=1274551185&sr=8-1 sorry long response !!!

Just so you can see what McQuinn is talking about... This is a 510 PT without an in-line battery. This will give you 5V, or whatever your USB port puts out. 510 PT - No battery This one has an in-line battery (see the little box). It keeps the voltage at 3.7. 510 PT w/ In-Line Battery