Re: Battery Load Testing

[Jim <alarminex@xxxxxxx>]

On May 15, 9:28=C2=A0pm, "mbba...@xxxxxxxxx" <mbba...@xxxxxxxxx> wrote:
> On May 12, 12:24=C2=A0pm, Jim <alarmi...@xxxxxxx> wrote:
>
>
>
>
>
> > On May 11, 6:04=EF=BF=BDpm, JoeRaisin <joerai...@xxxxxxxxxxx> wrote:
>
> > > When performing PM services, how you you guys load test sealed lead ac=
id
> > > 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 th=
e
> > > battery holds at, connect a 1 amp load for a minute, remove the load a=
nd
> > > 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 fir=
st
> > > 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 -
>
> > ->
> Old school! =C2=A0I bet you use a Simpson 260 meter.- Hide quoted text -
>
>

Nah, it fell off a ladder lotsa years ago. Nostalgically I still have
it down in my junk pile though.

But .... yes it is "old school"

You're gonna tell me it doesn't work .......... ?

I'll bet you have a shinny new battery tester in a bright plastic
yellow case with a meter in it, that cost $50.00 ....... that contains
a solid state equivalent of a 10 ohm 25 watt wirewound resistor.