Higher mAh vs Lower mAh- More mAh = More running time?

[gyrotron]

Hello. I am new to the hobby. I have a Thunder Tiger Outlaw Jr boat which I currently run on the recommended 3S 11.1V 2200mAh 25C Lipo Battery. I want to get more run time (currently 4 to 5 mins) so I am thinking on getting a 3S 11.1V 4000mAh 25C Lipo Battery. Can I run this battery without hurting the stock esc or motor and get more run time that what I am currently getting? Does more mAh = more running time? Thank you

[iamandrew]

the MAH is its battery life

so if you have 5 minutes of running time with a 2000MAH pack, then you "should" get 10 minutes out of a 4000mah pack

[Jersey Crewmax]

The one thing to watch out for with higher mah batteries and longer run tunes is that you don't let your electronics get too hot.

[iamandrew]

Oh and even the size of the battery can be larger

[gyrotron]

Oh and even the size of the battery can be larger

Yes iamandre, as matter of fact, last night, I was looking into the size diference in relation to the mAh spec and found out size is directly proportional to mAh. The Thunder Tiger Outlaw has an electronics box which dictates the max battery size and it cannot be longer than 105mm. I will have to mod it and perhaps go with (2) 2400mAh in parallel, housed outside the electronics box so I will also have to make a cable extension for the ESC which lives inside this box.

[gyrotron]

The one thing to watch out for with higher mah batteries and longer run tunes is that you don't let your electronics get too hot.

I will be watching the temps. Thank you.

[gyrotron]

Yes iamandre, as matter of fact, last night, I was looking into the size diference in relation to the mAh spec and found out size is directly proportional to mAh. The Thunder Tiger Outlaw has an electronics box which dictates the max battery size and it cannot be longer than 105mm. I will have to mod it and perhaps go with (2) 2400mAh in parallel, housed outside the electronics box so I will also have to make a cable extension for the ESC which lives inside this box.

Since I am a newbie. Can someone evaluate what I am trying to do with what I have in mind regarding the new battery setup in order to up the run time on my Outlaw Jr? Thank you.

[dana]

most of the heat generated is due to running packs too long.
when the batteries start to loose their charge, they dump the remaining charge quickly. the motor is calling for a certain amount of amps, of which the battery can no longer supply. when this happens, things get hot fast. more mah will give longer run times, and be ok heatwise until they (like your smaller packs) loose their charge.
so 8 minutes with the packs still having a good charge left in them will be no problem. its all relative.
runtime doesnt designate heat build up.
poor setup and running packs to lvc will.

[gyrotron]

most of the heat generated is due to running packs too long.
when the batteries start to loose their charge, they dump the remaining charge quickly. the motor is calling for a certain amount of amps, of which the battery can no longer supply. when this happens, things get hot fast. more mah will give longer run times, and be ok heatwise until they (like your smaller packs) loose their charge.
so 8 minutes with the packs still having a good charge left in them will be no problem. its all relative.
runtime doesnt designate heat build up.
poor setup and running packs to lvc will.

Ok, thanks for the explanation. P.S.: What does LVC mean?

[Nosbig]

LVC is low voltage cutoff. ESC's detect the voltage of the packs and when it gets too low it will slow down the motor or cut it off to let you know it's time to bring it in. Most ESC's have this set too low and it hurts the packs to over discharge them.

[gyrotron]

LVC is low voltage cutoff. ESC's detect the voltage of the packs and when it gets too low it will slow down the motor or cut it off to let you know it's time to bring it in. Most ESC's have this set too low and it hurts the packs to over discharge them.

What is then the optimal LVC setup? Thx

[Heaving Earth]

There isn't really an optimal lvc setting. It is not changeable On most stock esc anyway. The best you can do is time your runs or bring it in before it hits the lvc (studder bump or motor cutoff).