Conventional and 10 year life sealed batteries require 2.27 vpc -3mV /
Deg C temp compensation for static charging for maximum life (Yuasa
Clhoride Sonnenshine) not so sure about American ones (Power Gnb Johnson
ect)

Steve.....

-----Original Message-----
From: pic microcontroller discussion list
[mailto:PICLIST@MITVMA.MIT.EDU] On Behalf Of p.cousens
Sent: 17 August 2003 15:28
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [EE:] 24vdc from a 15vdc psu

In this type of app. Where the charge is almost never interrupted, I
recommend 13.5V, this gives you 2.25 Volts per cell


Peter Cousens
cousens@biscit.biz

> -----Original Message-----
> From: pic microcontroller discussion list
[mailto:PICLIST@MITVMA.MIT.EDU] On
> Behalf Of Jinx
> Sent: Sunday, August 17, 2003 2:52 PM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [EE:] 24vdc from a 15vdc psu
>
> > how the output of the 7805 circuit in the diagram is 14v1
>
> As Wouter said. They've bumped V up and allowed 0.6V
> for the following 1N4001. I believe 13.8V is the correct
> electrochemical potential of a 12V SLA, and that's what I
> set the voltage to in trickle charge/float applications
>
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