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Pro tip: always check the backup battery voltage before leaving a site.
I was installing a panel in a basement near Akron last Tuesday and the customer's old battery was showing 12.4 volts, but under load it dropped to 9 volts and the system kept false alarming. Has anyone else had a battery test pass static but fail hard on the load test?
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simon37818d ago
Had a similar thing happen with a fire alarm panel in a Cleveland strip mall last month. Static voltage looked fine but the load test showed the battery was basically toast.
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