Decrease the ROF.

[ThunderCactus]

Originally Posted by Azathoth

7.2V batteries will do it.

+1, I just cut my batteries down myself, not terribly complicated.

[ILLusion]

Originally Posted by Azathoth

Doesnt the mah determine the stamina of the battery pack?

Generally, it does, but there is a lot more happening with the chemistry than your basic Ohm's law.

The larger the pack, the lower the cell internal resistance it has - and the lower the cell internal resistance, the more current the pack is able to crank out. If the pack is able to release more current, then the motor can draw closer to it's full potential. Limit the bandwidth of current by dropping to smaller cells, and the motor won't get as much juice as it needs which results in lower ROF and slower trigger response time.

ROF drops are less noticeable between say... a 1700mAh sub-C cell pack and a 2400mAh sub-C cell pack than it is between a 1700mAh A cell pack and a 2400mAh sub-C cell pack.

So in general, physically larger cells will exhibit higher ROF versus smaller cells.

At an extreme end of the scale, try powering a 400fps setup with an 8.4v 600mAh 2/3A cell mini pack and then try powering it with an 8.4v 2400mAh sub-C cell pack. Despite having the same voltage, you'll notice a HUGE ROF increase and a massive decrease in trigger response time when using the large pack.
On top of that, you'll notice the mini pack will get noticeably warmer than the large pack - this is the effect of all that internal resistance. The resisted energy has to go somewhere, and is released in the form of heat.

[Naglfar]

Originally Posted by ILLusion

Generally, it does, but there is a lot more happening with the chemistry than your basic Ohm's law.

The larger the pack, the lower the cell internal resistance it has - and the lower the cell internal resistance, the more current the pack is able to crank out. If the pack is able to release more current, then the motor can draw closer to it's full potential. Limit the bandwidth of current by dropping to smaller cells, and the motor won't get as much juice as it needs which results in lower ROF and slower trigger response time.

ROF drops are less noticeable between say... a 1700mAh sub-C cell pack and a 2400mAh sub-C cell pack than it is between a 1700mAh A cell pack and a 2400mAh sub-C cell pack.

So in general, physically larger cells will exhibit higher ROF versus smaller cells.

At an extreme end of the scale, try powering a 400fps setup with an 8.4v 600mAh 2/3A cell mini pack and then try powering it with an 8.4v 2400mAh sub-C cell pack. Despite having the same voltage, you'll notice a HUGE ROF increase and a massive decrease in trigger response time when using the large pack.
On top of that, you'll notice the mini pack will get noticeably warmer than the large pack - this is the effect of all that internal resistance. The resisted energy has to go somewhere, and is released in the form of heat.

Quoted for truth, though wouldn't you have a snappier trigger response with the larger pack?

[ILLusion]

Exactly, as I mentioned, it will result in a massive decrease in trigger response time when using the large pack.

[Styrak]

Originally Posted by Naglfar

Quoted for truth, though wouldn't you have a snappier trigger response with the larger pack?

Haha, that was a Freudian slip from Illusion. Or just bad wording. He means a decrease in response time i.e a decrease in time between pulling the trigger and the gearbox cycling i.e BETTER trigger response time.

[ILLusion]

errrr. yeah. I can see where the confusion lays, now. I actually paused when typing that out...