AEGs and low temperature?

[Lozart]

I see what you're getting at but I think you're coming at it the wrong way around.

Motor stall occurs when the mechanical load on the motor exceeds the strength of the flux in the motor windings. If you mechanically stall a motor connected to an unlimited power supply the motor will attempt to draw more and more current until it reaches the maximum stall torque. Usually motors are wound with the correct gauge of wire to reduce the possibility of burnout at this point but with a small or cheap motor it is a possibility.

However you won't achieve maximum stall torque in the condition of a low output battery. The motor WILL stall, but at an earlier point in the torque curve and hence at a lower current draw (the maximum the battery can in fact supply) which is less likely to damage the motor. It is physically impossible for the motor to draw more current than is available from its power source, if that level of current does not exceed the maximum current capacity of the motor windings it will not get damaged.

 

[Lozart]

Yes ofcause And given that you folow this pattern then i agree no damage will occur!

But i have seen countless of fustrated people desperatly pulling the trigger and have seen them holding the trigger while hitting the gun trying to force it to cycle (because they "know" they charged ther battery and 6 month ago in the summer it worked perfect ) .... And i have seen guns (where the fuse was removed) where people have blown ther motor holding the trigger on a battery that was delivering power just not enought to get the gun to fylly cycle ...

So my point is that "Normal people that just change ther battery when it dies will have no problem using the gun in cold weather".

But: "If you don't folow normal procedure then YES your gun can take damage...."

I would say it's more likely they blew the battery rather than the motor. A flat battery can't blow up a motor, it's basic physics. Now that's not to say that they haven't physically damaged something by hitting the gun in an effort to change the laws of physics but that's another issue all together!

 

[sunstar]

I think i have changed 3-4 motors (Yes motors) during my tech carear because of people doing ecactly what i described: "Holding the trigger in for long periods because of the gun not firing..." Ofcause i have changed eaven more fuses and some fired wires as well (and batteries)... But I have also seen motors burn out that way .... So I'm relatively sure that i can happen ....

 

[jcheeseright]

but NOT with a flat battery, it simply cannot happen with a battery that is on it's last legs.

 

[Lozart]

I think i have changed 3-4 motors (Yes motors) during my tech carear because of people doing ecactly what i described: "Holding the trigger in for long periods because of the gun not firing..." Ofcause i have changed eaven more fuses and some fired wires as well (and batteries)... But I have also seen motors burn out that way .... So I'm relatively sure that i can happen ....

If you blow fuses or burn stuff out then there has to be power there to be able to do that. If those motors have burned out it's more likely to have been a mechanical jamming issue that has then caused the battery to go flat through someone repeatedly trying to make the gun work (a bit like constantly turning over a car that won't start).