Check these out if you are making the switch to new LiPo or Li-ion onboard power supplies. With the use of programmable BEC’s like Castle’s BEC pro you can make sure you have plenty of power to fly all day instead of worrying that at any minute the bottom is going to fall of your NiCd or NiMH battery. Now you can also check the power supply easily and visually with red, yellow and green LED’s and you can get immediate feedback by moving the sticks and watching for the battery condition under load. This is cool stuff and great insurance at $30.
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