PSN-L Email List Message

Subject: RE: station battery maintaining
From: "Stephen Hammond" shammon1@.............
Date: Fri, 2 Nov 2012 21:59:30 -0700


Hi all, One of the reasons I picked a programmable digital timer was that I
could pick the time and the day(s) of the week I needed it on. While I'm
charging a 12Vcar battery driving an XM receiver and a burglar alarm I
figured out that I need it charged back up to the point I could start the
truck about every two weeks. So I set the timer up for Thursdays between 6
and 10PM when I'm normally around to check on stuff . Based on Chris's input
below this should be good  for the full life of the battery. Thanks Chris--


Regards, Steve

 

From: psnlist-request@.............. [mailto:psnlist-request@...............
On Behalf Of chrisatupw@.......
Sent: Friday, November 02, 2012 1:22 PM
To: psnlist@..............
Subject: Re: station battery maintaining

 

From: Barry Lotz 

To: psnlist 
Sent: Fri, 2 Nov 2012 3:43
Subject: Re: station battery maintaining

Hi Steve
   I measured the power requirement a while back and came up with 8 watts
which is less than an amp. Right now I have the battery on a charger and
it's showing ~13.25 vts and < 1 amp on the 2 amp setting. I thought it might
be good to cycle the battery a little as you suggested.  I'm going to
disconnect the charger until the battery voltage gets down to say just under
12 volts and see how long it takes. 

Hi Barry, 

    A 12 V lead acid battery is fully discharged at about 11 Volts. They may
have a 'working life' of about 300 full charge / discharge cycles. The fewer
cycles you put it through and the less the depth of the discharges, the
longer the battery will last. 

    Regards, 

    Chris Chapman

 

Hi all, One of the reasons I picked a programmable digital timer was = that I could pick the time and the day(s) of the week I needed it on. = While I’m charging a 12Vcar battery driving an XM receiver and a = burglar alarm I figured out that I need it charged back up to the point = I could start the truck about every two weeks. So I set the timer up for = Thursdays between 6 and 10PM when I’m normally around to check on = stuff . Based on Chris’s input below this should be good  for = the full life of the battery. Thanks Chris--  =

Regards, Steve

 

From:= = psnlist-request@.............. [mailto:psnlist-request@............... = On Behalf Of chrisatupw@.......
Sent: Friday, November = 02, 2012 1:22 PM
To: psnlist@..............
Subject: = Re: station battery maintaining

 

F= rom: Barry Lotz <barry_lotz@.............>=

T= o: psnlist <psnlist@..............>
= Sent: Fri, 2 Nov 2012 3:43
Subject: Re: station battery = maintaining

Hi Steve
   I = measured the power requirement a while back and came up with 8 watts = which is less than an amp. Right now I have the battery on a charger and = it's showing ~13.25 vts and < 1 amp on the 2 amp setting. I thought = it might be good to cycle the battery a little as you suggested.  = I'm going to disconnect the charger until the battery voltage gets down = to say just under 12 volts and see how long it takes.

Hi Barry, =

    A 12 V lead acid battery is fully = discharged at about 11 Volts. They m= ay have a 'working life' of about 300 = full charge / discharge cycles. The fewer cycles you put it through and = the less the depth of the discharges, the longer the b= attery will last. =

&= nbsp;   Regards,

    Chris = Chapman

 


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