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Power source question

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#1 mtw4518

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Posted 19 January 2013 - 11:13 AM

I was going to buy a larger power tank to run my scope and dew zapper, but after reading all the comments on here about using a jump starter, I will go that direction. My only concern is the DC outlets on the power tank are fused at 10 amps, but all the jump staters I have found are 15 amp. Is this something to be concerned about?

#2 Bob Griffiths

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Posted 19 January 2013 - 11:47 AM

NO....

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#3 mtw4518

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Posted 19 January 2013 - 12:06 PM

Thanks

#4 Arthur Dent

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Posted 19 January 2013 - 05:45 PM

To amplify Bob's answer,

No, the device will only draw as much current as it requires.

As long as it is 12V dc output, you should be fine.

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#5 Midnight Dan

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Posted 19 January 2013 - 05:57 PM

None of your equipment will draw anywhere near 10 amps so you're fine.

-Dan

#6 mtw4518

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Posted 19 January 2013 - 06:59 PM

So, no worries of the power source sending more amps than needed? The fuse is so the equipment attatched doesnt overdraw power?

#7 Midnight Dan

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Posted 19 January 2013 - 08:33 PM

Correct. The equipment only draws the current that it needs. A power supply cannot "send" more.

And yes, the fuse is there to protect the power supply, not the equipment that it is connected to. If the equipment were to develop a short circuit, it could start drawing hundreds of amps and, in the worst scenario, the battery could explode. The fuse prevents this from happening.

-Dan

#8 mtw4518

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Posted 19 January 2013 - 08:58 PM

Thanks I understand now, it makes perfect sense






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