HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Apr 24, 2014, 04:23 PM
Registered User
Shakopee, MN
Joined Apr 2006
4 Posts
Discussion
Nano CPX with HH Brushless Kit - Current Draw

The brushless motor and ESC kit for the nano looks very interesting. Has anyone installed this and tested the current draw using wattmeter, current probe, or other method. Maybe a comparison of the brushed vs. brushless?
chork223 is offline Find More Posts by chork223
Reply With Quote
Sign up now
to remove ads between posts
Old Apr 24, 2014, 04:28 PM
Registered User
ripfree's Avatar
Joined May 2009
42 Posts
I've installed the brushless setup. Works really well, but I haven't measured with a wattmeter. Can do this, and will report. Not sure if I have a breakout harness to make this easy. The flights with the updated 40c battery are pretty good though.
ripfree is offline Find More Posts by ripfree
Reply With Quote
Old Apr 24, 2014, 08:38 PM
Registered User
ripfree's Avatar
Joined May 2009
42 Posts
I measure the electrical performance of the nano-CpX brushless conversion kit. Using a 45C 3.7V 1S fully charged Electrifly battery, the heli drew 3.7A at 4.3V. That's a calculated 15.9 watts. The calculated flight time is only 2.5 minutes, but it actually goes a little longer. Depends on the nano's programmed cutoff voltage.
ripfree is offline Find More Posts by ripfree
Reply With Quote
Old Apr 24, 2014, 09:19 PM
Registered User
Shakopee, MN
Joined Apr 2006
4 Posts
That's a considerable amount of current to expect out of such a small battery. It works out to be about 25C (assuming it was a 150 mAh cell). Is that a peak current, full throttle and full pitch, or is it a measure of typical hovering current, full throttle and about 40-50% of max pitch or so?
chork223 is offline Find More Posts by chork223
Reply With Quote
Old Apr 25, 2014, 01:14 AM
Registered User
ripfree's Avatar
Joined May 2009
42 Posts
It's measured in flight mode #1 (stunt mode), modulating the throttle stick to vary the pitch while watching the meter to get the maximum current.
ripfree is offline Find More Posts by ripfree
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
For Sale Brushless Nano CPx with upgrades WestonsDigital Aircraft - Electric - Helis (FS/W) 0 Apr 14, 2014 06:50 PM
For Sale Blade nano cpx with brushless upgrade +3 brand new 45c packs! Must sell TMAC4123 Aircraft - Electric - Helis (FS/W) 0 Mar 12, 2014 09:58 AM
For Sale Blade Nano CPX with Blade Brushless upgrade +3 brand new Eflite 45c packs! TMAC4123 Aircraft - Electric - Helis (FS/W) 0 Mar 07, 2014 01:40 PM
For Sale Blade Nano CPX Brushless Conversion Kit Wild Package Howeroll Aircraft - Electric - Helis (FS/W) 0 Oct 20, 2013 10:13 PM
For Sale Nano cpx Brushless mild kit with spare 3n1 $140 snackdaddy185 Aircraft - Electric - Helis (FS/W) 5 Mar 05, 2013 06:32 PM