Re: OK guys I've given up on my AW 17500s in my S.F. G-3, will they work in a S.F. 9P
im confused why would a 18500 work and not 17500?
Please re-read posts 16 and 18 above
Assuming you have, I'll try to put together some analogies that might help further explain "why."
Imagine you have a sponge. You dip it into water, squeeze it, allow it to expand to full size under the water. It has now absorbed water. (think of this as the cell being charged up). Now you lift the sponge up out of the water and squeeze the water out. Everything is working fine. Now lets say you were to squeeze the water out REALLY fast, like say for instance, you put the sponge between to flat metal plates, and used an air powered hammer device to force the metal pates together really fast. Again, the water would be squeezed out of the sponge, but what would happen to the sponge? Imagine water trying to escape through the porous but slightly restrictive material of the sponge at super-speeds. The sponge would be damaged by the rapidly escaping water. It would cause micro-cracks and holes and stuff as the water forced it's way out. Exceeding the maximum recommended discharge rate of a li-ion cell can have the same effect. A P91 has a resistance such that a certain current is going to flow across it given the proper voltage, and that current flow (think of it as water flowing out of the sponge when squeezed) is going to happen if you have a big sponge or a small sponge, the smaller the sponge, the faster it would have to be squeezed to maintain the flow of water. A larger sponge is holding a lot more water, has a lot more surface area and capacity, so a slower squeeze rate will keep up with the flow requirements of the P91...
Possibly the most bizarre analogy I have ever come up with. But it's the first thing that came to mind at the time
Eric