Question

 How Do I Test a 12V Battery for Power?

Answer Testing a battery for power is a simple process that must be done correctly so that you don't shock yourself or blow up the battery and cause injury to yourself. You will need a volt meter to test ... Read More »
http://www.ehow.com/how_7272277_do-test-12v-battery-power_.html

Top Q&A For: How Do I Test a 12V Battery for Power

Is it possibble to test my laptop battery and/or power adapter for troubleshooting purposes?

Yes, remove the battery and run on AC if it powers up your laptop then the adapter is OK, then do the same with the battery.Good Luck
http://answers.yahoo.com//question/index?qid=20091221180110AACtaWz

When operating a laptop on battery power, how many hours does the typical battery power a laptop?

The average lifespan of a laptop battery is three hours. However, that depends on the laptop itself. There is no one answer. Some laptops last anywhere between 5 and 8 hours, mostly the thin and... Read More »
http://answers.yahoo.com//question/index?qid=20060621183852AAi2kyU

While working, does power on of full laptop battery reduces battery lifethanks?

no using laptop power on of full battery doesn't reduces battery life .
http://answers.yahoo.com//question/index?qid=20120902040342AAz1YhQ

How can I make a 6v external battery pack for Olympus E10 I'm thinking of using a UB645 6v 4.5 Ah battery connected to my external power jack.?

Sounds like it's possible, but without more information on the specific camera battery and the UB645 battery, there's a chance things `might` go wrong.But if you're wondering if it can be done, yes... Read More »
http://wiki.answers.com/Q/How_can_I_make_a_6v_external_battery_pack_for_Olympus_E10_I%2...


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