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    Hobbywing 90A ESC
    by drspock πŸ‡¬πŸ‡§ ( Master Seaman)
    πŸ“£










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    9 Posts 8 Replies 4 Photos 11 Likes
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    drspock
    Master Seaman
    πŸ“ Hobbywing 90A ESC
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    Country: πŸ‡¬πŸ‡§ United Kingdom
    Online: 7 days ago
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    Graham,
    Fantastic reply,I have seen latching relays,but did not understand the significance.I do now,and will follow this steer.Many thanks,

    Doc
    1
    Graham93
    Sub-Lieutenant
    πŸ“ Hobbywing 90A ESC
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    Country: πŸ‡¬πŸ‡§ United Kingdom
    Online: 3 hours ago
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    Hi drspock,

    "If I want to switch it with a sensibly sized switch,presumably I would need a relay,as 90A @12V is a pretty heavy load."

    I use a 50A latching relay together with a blade fuse in my Crash Tender to switch the ESC power. Using a latching relay means the relay doesn't continually draw power, only a short pulse to switch it on, and another to switch it off. The relay has two coils, one for on and one for off. These are activated using a small centre off spring loaded toggle switch mounted under the sliding hatch on the forward cabin roof. Push one way for on, and the other for off. The second switch is for the separate receiver/auxillaries battery.

    Graham93
    https://www.ebay.co.uk/itm/1PCS-ORIGINAL-HFE10-2-12-HT-L2-Miniture-High-Power-Latching-relay-50A-277VAC/202184119005?hash=item2f131cd2dd:g:lKQAAOSw8i9aWCRp
    πŸ”—
    3
    Ianh
    Chief Petty Officer 1st Class
    πŸ“ Hobbywing 90A ESC
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    Country: πŸ‡ΏπŸ‡¦ South Africa
    Online: 9 hours ago
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    Sorry 2 MFA 540's
    Only old in years not mind or soul.
    Ianh
    Chief Petty Officer 1st Class
    πŸ“ Hobbywing 90A ESC
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    Country: πŸ‡ΏπŸ‡¦ South Africa
    Online: 9 hours ago
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    Got 2 MFA 54's for mine😊😊😊
    Only old in years not mind or soul.
    drspock
    Master Seaman
    πŸ“ Hobbywing 90A ESC
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    Country: πŸ‡¬πŸ‡§ United Kingdom
    Online: 7 days ago
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    Many thanks Doug. I am using a 60A fuse but like the idea of a quick flick startup/off.
    The boat is the model that Robbob has a build blog on the site,a 46" crash tender.It is heavy and needs a realistic scale speed.
    Motor is Overlander thumperT4260/06.
    Cheers,John
    2
    drspock
    Master Seaman
    πŸ“ Hobbywing 90A ESC
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    Country: πŸ‡¬πŸ‡§ United Kingdom
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    Thanks Ianh,I have a 60A fuse ready,but do like the idea of just flicking a small switch.
    1
    Ianh
    Chief Petty Officer 1st Class
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    Country: πŸ‡ΏπŸ‡¦ South Africa
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    Same as RNinMunich
    I don't use a switch but have a removable blade fuse.
    As said I doubt you will use 90 Amps!(Check the maximum draw at the motor not stalled!) You want it to fail before stalling The cable would be horrendousπŸ‘πŸ‘
    2
    Only old in years not mind or soul.
    RNinMunich
    Fleet Admiral
    πŸ“ Hobbywing 90A ESC
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    Country: πŸ‡©πŸ‡ͺ Germany
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    Hi Doc,
    The Seaking series generic manual simply shows that you CAN connect two batteries in series on the higher power ESCs used with motors that can run on higher voltages.
    Or you may want to use two lower voltage LiPos to spread the weight , e.g. port and starboard.
    It doesn't mean you must! πŸ˜‰
    Without knowing what boat and motor you are using it with we can't say what is adequate or notπŸ€” Or what switch current rating you would need.
    I doubt you will ever be using 90A. That is only the max continuous current rating of the ESC.
    Check your motor specs and see if it gives the current drawn at maximum efficiency.
    That will give you a good guideπŸ‘
    DON'T FORGET A FUSE BETWEEN BATTERY-(IES) AND ESC!!!
    I also have some car blade type circuit breakers (Halfords etc) which switch off automatically in emergency (stalled motor!) or can be used as a manual ON/OFF switch.
    I think they go up to about 50A or so, which might be enough for your application.
    Are you going racing??
    Hope that helps.
    Cheers, Doug 😎
    PS I get my Hobbywing Quicrun ESCs on a 'fast truck from Krick', last two arrived three days after ordering 😊
    1
    The Bugs are on the run 😊 ❄️❄️❄️ Get out and run those Sea Trials!! πŸ˜‰ Cheers Doug
    drspock
    Master Seaman
    πŸ“ Hobbywing 90A ESC
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    Country: πŸ‡¬πŸ‡§ United Kingdom
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    Hello Chaps,Have just received Hobbywing 90A ESC on a slow boat from China.
    Couple of queries: The wiring diagram shows connections for TWO
    Lipo batteries in series.Why? when one 4S with enough capacity @ 14V is surely adequate?
    If I want to switch it with a sensibly sized switch,presumably I would need a relay,as 90A @12V is a pretty heavy load.
    Any advice would be treasured!
    1



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