How to Test a Ferno Battery Pack

Ferno is a company that manufactures industrial medical supplies such as lift chairs and hydrotherapy units. Since these machines run on motors they need fairly large 12-volt batteries to operate. You can test the health of these batteries with a voltmeter, which is available from most electronics stores. Test your battery to troubleshoot problems or to see if it's time for a replacement.

Things You'll Need

• Voltmeter

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Instructions

• 1

  Turn on your voltmeter and use the front settings to set the unit to "V" which means the machine will read in volts.

• 2

  Plug the included test lead into the port in the front of the voltmeter.

• 3

  Run the end of the lead to the terminal on top of the Ferno battery and hold it on the terminal.

• 4

  Wait for the display screen on the voltmeter to produce a reading. If the reading is around 12, the battery is healthy. If you have a fully charged Ferno battery with a low voltage reading, the battery is likely failing.