Re: Battery Load Testing

["mbbaker@xxxxxxxxx" <mbbaker@xxxxxxxxx>]

On May 12, 12:24=C2=A0pm, Jim <alarmi...@xxxxxxx> wrote:
> On May 11, 6:04=EF=BF=BDpm, JoeRaisin <joerai...@xxxxxxxxxxx> wrote:
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> > When performing PM services, how you you guys load test sealed lead acid=

> > batteries?
>
> > I'm seeing two schools of thought around here:
>
> > Some say to disconnect the AC from the panel and let it sit for one
> > minute, then check to ensure the battery has dropped less than 1 volt.
>
> > Some say to disconnect the battery from the panel check the voltage the
> > battery holds at, connect a 1 amp load for a minute, remove the load and=

> > ensure the voltage has dropped less than 1 volt.
>
> > For the most part I am talking about household systems generally using
> > FA162's-168's or commercial situations using fire rated vista's or first=

> > alerts.
>
> > Thoughts?
>
> I have a 10 Ohm 25 watt, wirewound resistor with clipleads soldered on
> the end.
>
> Disconnect the battery from the panel, put your volt meter across the
> battery terminals. (should read something over 12 volts) Clip the
> resistor across the battery terminals. Watch the voltmeter. If the
> reading goes below 12 volts within aprox a minute, change the
> battery.
>
> Watch it .......... the resistor gets hot.- Hide quoted text -
>
> - Show quoted text -

Old school!  I bet you use a Simpson 260 meter.