Is a bigger Lipo OK?

[nwa1]

Hey guys,

I have a PZ P-51BL which is completely stock with the 3s 1300mah lipo, 18amp esc and standard prop. It is my understanding that I can put in a bigger battery, say, a 3s 2100mah without causing any problems electrically. Am I correct? I know I will have to adjust the cg and cut out more space for the battery but I shouldn't have any issues with the esc or motor, right?

I believe by going to a higher mah battery without changing esc or prop I will get longer flight times. If I changed the prop or motor then I would need to get a bigger esc. What do you guys think?

Thanks,

Ken

[ATIS]

Ken,

You can indeed go to a larger lipo but you will trade off a little flight performance for the weight penality. If you have a 3s 1500 or 3s 1800 that would be the direction I would go. I know guys are using the 3s 2100's but to me thats just oo much of a weight gain. More weight means higher throttle settings for the same performance. The 1500 mah lipo should give you another minute or so of flight time and the 1800 would give you another 3 minutes of so.

If you need to change the ESC I would go to a 30amp ESC as thats the max the motor can handle.

[WJCJR1]

I shouldn't have any issues with the esc or motor, right?


You are correct staying stock and going to the larger battery WILL NOT hurt the motor or ESC.


If I changed the prop or motor then I would need to get a bigger esc. What do you guys think?


This is where you need to start doing some investigation before propping and motor swapping etc. You should start first of all by getting yourself a WattsUp meter. Then read up in the beginners section; http://www.horizonrcflyers.com/forums/showthread.php?t=83 on much of the information you would require and more for informing yourself more of the basic workings of the electronics inside your model. Here's a specific post within the beginners area dealing with tuning; http://www.horizonrcflyers.com/forums/showpost.php?p=9424&postcount=13 Also in this section you'll learn more of what all the manufacturer's spcifications ratings mean and how to intepret them.

Wayne

[nwa1]

ATIS,

Yeah, I was wondering about the weight increase too. I think I'll go with the 1800.

Thanks, man, I appreciate the advice.

[nwa1]

Wayne,

I just got a Watts Up Watt Meter but I still need to solder some EC3's on it. My soldering skills are not the best only because I've never soldered anything before this so I hope that practice will make competence. I have viewed the video on YouTube on soldering EC3 connectors.

I will surely look at those threads you listed.

Thanks,

Ken