Living the dream
Join Date: May 2008
Location: Mackay Qld AU
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Re: newbie mast light checking question
I picked up a cheap 12v lawn tractor battery to use for testing purposes. Enough amperage to make things noticeable, while still lasting more than a few minutes. And I can always recharge it for using later. It's not a 9v to carry, but it beats lugging a full size battery all over to test things.
That's what I do. I use an alarm system backup battery of about 3 to 7 a/h. I made a test lead with a 3A circuit breaker inline just to ensure I don't burn nothing out if I hook it up wrong (learnt that one the hard way at the expense of an Icom VHF radio
The problem with using a meter alone is it won't necessarily reveal a bad connection and I'm not even sure how it would read against LED lights which may show as an open circuit under a multimeter resistance test.