Question about battery and ESC matching
07-07-2008, 06:41 PM
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Question about battery and ESC matching
So I am trying to learn all about electric flight. I have been flying glow for a little while and I want to get into electric park flyers.
I am looking at getting a Parkzone T-28 Trojan PNP and I am trying to figure out what battery to get to put in it. I am looking at a 2200mah 3S1P 11.1V 15C battery for it. Now, I know that to get the discharge amps you take 15*2.2, which is 33Amps. The ESC that comes with the T-28 is a 25Amp ESC. Does this mean that the battery could blow out the ESC or does that mean that it is a good battery for the plane?
If there is a chance of blowing the ESC with this battery, would the fix be replacing the ESC with a higher rated one? Or should I keep shopping for batteries?
Any help you can give I would appreciate, I am just trying to figure all this electric stuff out. Thank you.
I am looking at getting a Parkzone T-28 Trojan PNP and I am trying to figure out what battery to get to put in it. I am looking at a 2200mah 3S1P 11.1V 15C battery for it. Now, I know that to get the discharge amps you take 15*2.2, which is 33Amps. The ESC that comes with the T-28 is a 25Amp ESC. Does this mean that the battery could blow out the ESC or does that mean that it is a good battery for the plane?
If there is a chance of blowing the ESC with this battery, would the fix be replacing the ESC with a higher rated one? Or should I keep shopping for batteries?
Any help you can give I would appreciate, I am just trying to figure all this electric stuff out. Thank you.
07-08-2008, 12:11 AM
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RE: Question about battery and ESC matching
The current required by your power system is determined by the motor and the the prop, not by the battery. As long as your particular combination of motor and prop does not draw more current than the ESC can handle, the ESC will be fine, no matter how much current the battery is capable of providing.
The only reason not to use a battery that is capable of more current than you need is weight. In general, the more current a battery can provide, the heavier it will be. If a plane is right on the edge of being too heavy, using more battery than you need can effect performance.
Where you must be careful is if you are tempted to experiment with different props. Too large a prop might push current consumption higher than your ESC can handle. If you start experimenting with props, you'll want a wattmeter, which allows you to check the actual current being used by your power system. A wattmeter is absolutely essential if you want to do anything other than fly the manufacturer's recommended motor and prop.
- Jeff
The only reason not to use a battery that is capable of more current than you need is weight. In general, the more current a battery can provide, the heavier it will be. If a plane is right on the edge of being too heavy, using more battery than you need can effect performance.
Where you must be careful is if you are tempted to experiment with different props. Too large a prop might push current consumption higher than your ESC can handle. If you start experimenting with props, you'll want a wattmeter, which allows you to check the actual current being used by your power system. A wattmeter is absolutely essential if you want to do anything other than fly the manufacturer's recommended motor and prop.
- Jeff
