Need an alternative powersupply for quadcopter..!!
I need a power supply for my quadcopter because the lipo I used in the copter get damaged yesterday. Now I'm unable to purchase a new lipo. Next week I'll have an indoor demonstration of this quadcopter. Wired power supply is enough for this. So I urgently need a power supply w/ extension cord.
I have a 12V power supply but it is only rated for up to 3A. Based on the specs of the motors (http://www.hobbyking.com/UNITEDHOBBIES/store/uh_viewItem.asp?idProd...), each motor can draw up to 18Amps at 11V .
Does anyone have any ideas to build an alternative power supply? I've looked into ATX computer power supplies 12V output but the motors specifically say 10V max.
Replies to This Discussion
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Permalink Reply by Greg Fletcher on -
Car battery would work just fine as long as it's 12V. If the ESC's can take 12 to 14 V. The motors should be fine as long as you don't give too much throttle. Are you running a 2 cell lipo now? If it hovers on this the motors should not see the full battery voltage unless you are at 100% throttle. You will just be operating at a much lower throttle setting to hover.
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Permalink Reply by SANJU.R.S on
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Voltage Range of ESC is 6V-12V. I'm using 3 cell lipo (http://www.atbatt.com/product/21788.asp). Need any protection circuit or ESC settings for Lead-Acid battery?
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Permalink Reply by Greg Fletcher on
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A 3 cell lipo can be close to 12 V fresh after a charge. A lead-acid can be ~ 13 V after charge if its a good one. Lead bat can safely operate at less than 12 V. Just don't use a freshly charged bat. A motorcycle battery would probably work great. No protection other than a fuse is needed. The ESC will output close to bat voltage at 100% throttle. Battery voltage is the key. Higher bat voltage means less throttle for same effect. The motors will see the same voltage as always would in hover. You should be fine.
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