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Old 01-04-2006, 05:50 AM   #1
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Default how to prevent charger from arcing?

hi, when i connect charger to the PS it makes a spark (called arcing?) and it makes my PS switch off, So basically i need to turn off my PS before connecting a charger, which sometimes is not practical.

is there anything i can do to prevent the arcing caused by the charger when connecting it?
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Old 01-04-2006, 06:08 AM   #2
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Quote:
Originally Posted by XingXing
hi, when i connect charger to the PS it makes a spark (called arcing?) and it makes my PS switch off, So basically i need to turn off my PS before connecting a charger, which sometimes is not practical.

is there anything i can do to prevent the arcing caused by the charger when connecting it?
maybe your PS is low on amps to your chargers need... try more other PS that has higher amps.. BTW what is your PS amps?
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Old 01-04-2006, 06:14 AM   #3
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25amp computer ps
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Old 01-04-2006, 06:28 AM   #4
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Quote:
Originally Posted by XingXing
25amp computer ps
I installed the Sermos (black and red lego block style) connectors on to my chargers PS cable, and on the power supply I instaled a couple pieces of wire with those connectors...

no arcing when you plug in, and it also protects against hooking the charger up backwards(reverse polarity)

You can still use the clips by installing the mating plugs onto the clip section of the charger's power cable that you cut earlier...

It works nice!
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Old 01-04-2006, 06:30 AM   #5
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If you haven't modified your PS at all, it will need capacitors installed. Look around here or on Hobbytalk, maybe even rc-oval.com for conversion instructions.
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Old 01-04-2006, 06:34 AM   #6
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hi, how are those sermo plugs different to say bannana plugs? i tried bananna plugs and they still arc.
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Old 01-04-2006, 07:11 AM   #7
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you're plugging both in at the same time....vs. separately with banana plugs
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Old 01-04-2006, 08:27 AM   #8
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Computer power supplies are created to operate on a constant load. When a large load is put on(ie. connecting a charger), it causes current spike, which will in turn turn off the power supply.
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Old 01-04-2006, 08:33 AM   #9
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which explains the earlier posters comments about adding a capacitor...

Actually, in just about any PS, they recommend to power it off before connecting to it anyway...
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Old 01-04-2006, 02:20 PM   #10
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Try turning the ps on after you have the charger plugged into it.
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Old 01-04-2006, 10:37 PM   #11
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Quote:
Originally Posted by XingXing
25amp computer ps
Computer ATX PSU have built in protection against sudden voltage drop / over current / spikes. It will shut down in split second to protect the systems.

So plug in your stuffs before turn it on.
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Old 01-05-2006, 02:42 AM   #12
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I also understand the need for "plugging stuff in" before turning on the PS, but what if there were something already plugged in the PS (say, another charger?).
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Old 01-05-2006, 04:22 AM   #13
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Quote:
Originally Posted by Alfalfameister
I also understand the need for "plugging stuff in" before turning on the PS, but what if there were something already plugged in the PS (say, another charger?).
Then you have to wait, or keep everything plugged in from the start.
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Old 01-05-2006, 08:08 AM   #14
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intresting, since plugging in the charger causes the power supply to shut off anyway, it wouldn't seem very impractical to turn off the power supply first to begin with. Really, either way the power supply is going to get turned off.

I'm glad I bought a hobby grade power supply designed for the application from the start so I didn't have to deal with such a ridiculous self created problem.
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