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June 18, 2019, 13:43:18 PM

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Author Topic: Turnigy Electrical Switch with battery protection.  (Read 1319 times)

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Offline hatchet47

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Turnigy Electrical Switch with battery protection.
« on: July 06, 2017, 11:22:08 AM »
I have an issue with one of these switches and wondered if anyone else has had the same thing, the switch seems to discharge the Rx battery while turned off.... Twice now I have gone to the model and found the Rx battery completely flat. Is it a faulty switch or an issue with this type of switch?


Offline dickw

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Re: Turnigy Electrical Switch with battery protection.
« Reply #1 on: July 06, 2017, 12:32:43 PM »
Electronic switches need power to operate even when "turned off" and will continue to take a small amount of power at all times when connected to a battery.
Some are designed so that the power taken is unlikely to flatten even a small battery for many weeks or even months, but eventually it will happen.
Unless you know what this small quiescent current is, and how long it will take to flatten your battery, it is best to plug/unplug the battery at the beginning/end of a days flying.

Dick
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Offline FrankS

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Re: Turnigy Electrical Switch with battery protection.
« Reply #2 on: July 06, 2017, 13:58:55 PM »
As Dick says, the Multiplex ones quote an OFF current of 2.5 mA, I always unplug mine at the end of the day.


Offline firefox

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Re: Turnigy Electrical Switch with battery protection.
« Reply #3 on: July 06, 2017, 15:17:29 PM »
You would think they would switch off completely when they get to a cut off voltage or they could ruin LiPos etc by flattening them.

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Offline dickw

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Re: Turnigy Electrical Switch with battery protection.
« Reply #4 on: July 06, 2017, 23:16:09 PM »
If it were possible  to "switch off completely" then I am sure they would do it, but unfortunately it isn't possible.
When an ESC reaches cut off voltage it just shuts off the motor, it can't switch itself off.

Dick
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