Phil1993

Hi there,

Would switching a lower mAH to a higher mAH burn up a motor or electronics? I am using salvaged parts to build my own craft. I am just wondering if I would gain fly time if I use a same level voltage, 3.7 V, but with even triple the mAH. I am a big DIY and have built many things, and although I believe switching to the higher mAH will give me more run time, I just wanted some experts opinions.

The motors I'm using are tiny. I'm trying for an ultralight little flier using styrofoam and salvaged servos and such.

Advice?

Phil

collector1231

My Feedback: (1)

No, a higher mAH will not fry anything.

Phil1993

Thanks

rgburrill

Yes you would gain a lot of flight time, about 3 times as much. If you divide mah by the current required you will get roughly the time the battery can supply that current. Three times the mah means three times the time at the same current draw. Do watch your decimal points when doing calculations.

Phil1993

Thank you.

Phil1993

could you suggest a dependable lightweight high capacity lipo 3.7v? if i did go up some in terms of volts from the stock DC 3.7 V 140 mAh, would it fry the circuitry that is already in the setup? would the motors burn up with say, perhaps 6 volts?

Phil1993

can voltage be raised in a setup meant for 3.7v? to perhaps 6v?

philakapd

Hi Phil,

To answer your questions, the community would need to know what type of motor/ESC you have. What are the manufacturer's specifications for your equipment? Right now, you are describing a 1S LiPo which delivers 4.2 Volts when fully charged. You cannot get direct voltage of 6Volts from a LiPo, it would require a regulator (which are extremely common).

An example would be:

2S LiPo, 500mAH battery (8.4Volt).
BEC - REGULATOR rated from 2S-6S ( example: http://www.castlecreations.com/products/ccbec.html )
You can also try an ESC with BEC built in ( example: http://www.castlecreations.com/produ...nderbirds.html )

Watch your current. How many Amps do you need at 6Volts? Verify the manufacture specs to be certain it will work with your existing equipment.

I don't know what type of servos you are using. The voltage rating varies significantly so check your specs.

Same goes for your motor (s). As the voltage increases so does the RPM of the motor. Once again, verify specs.

I hope this helps you a little. The more specific you can be with your project, the more specific the answers!

Have fun and let us know how your project is going

-PD