GoldenMotor.com Forum

General Category => Magic Pie & Smart Pie Discussions => Topic started by: Mgizen on January 04, 2016, 03:29:54 AM

Title: Mp4 adding RC hobby watt meter.
Post by: Mgizen on January 04, 2016, 03:29:54 AM

Are Deans connector rated for enough amps if used with Mp4 at 48 set to default settingsettings?

Title: Re: Mp4 adding RC hobby watt meter.
Post by: Bikemad on January 04, 2016, 12:10:44 PM

I use the HobbyKing version of the Deans "T" style connectors (http://www.hobbyking.co.uk/hobbyking/store/__11961__Nylon_T_Connectors_10_Pairs_20pc_.html) and have found them to be more than capable of carrying the 30~35 amps that the MP4 draws:
 
(http://www.arhservices.co.uk/GoldenMotor/Deans-1.JPG)

On my modified MPII, my wattmeter regularly records a maximum current ~50 Amps and the connectors have been in use for over 5 years so far.

This is the maximum measured current that I have inflicted upon them, which they handled without a problem :

(http://www.arhservices.co.uk/GoldenMotor/MaxPower.GIF)

Although I have discovered that they are not able to withstand an accidental direct short while trying to connect to an unprotected high current LiPo pack:

(http://www.arhservices.co.uk/GoldenMotor/BurntConnector.JPG)

My 30c 10Ah LiPo pack was capable of delivering 200 Amps continually and 300 Amps for short bursts, so I was not surprised to discover that the connector was unable to survive a direct short circuit with such a high current.

Alan
 

Title: Re: Mp4 adding RC hobby watt meter.
Post by: Mgizen on January 04, 2016, 06:22:18 PM

Thanks for info Alan. :)

Title: Re: Mp4 adding RC hobby watt meter.
Post by: NR on January 04, 2016, 09:51:34 PM

I have used deans in rc and find them very robust for everyday use, the doesnt melt before 130-140 amps, which most e-bikes seldom exceeds  ;D