Sunday, Feb 26, 2006 at 15:08
Thanks David, now Collyn will be able to read the thread in full, hopefully now he may also be able to understand how the comments do make sense when they are ‘quoted fully and in context’ as the relevant E-mail messages can now be read simultaneously, also it can be seen an almost exact same E-mail was also sent to two other respondents, therefore I would suggest it is not a once off E-mail at all, but a reply that’s very carefully and precisely worded, that shifts the responsibly of the statement onto an un-named third person!!
Collyn, Anthony was also very aware of the fact that his reply to me would be placed on a 4wd
forum also, it’s actually mentioned in my E-mail to him, and I’m sure his response was designed with that in mind.
As to your comment, ““I don't FULLY agree with you that an starter battery and an AGM deep cycle battery are that different from each's charge/discharge point of view, except that one will fully charge at 14.2 or so volts - and the other one wont””
Ummm, Collyn, that is the point - they charge & also discharge differently!!!
If, they were 'identical' and did accept charge and discharge at the exact same rate then you would use the ‘cheaper’ battery, but fortunately AGM’s are an easier/better battery to use as a Deep Cycle battery simply because their construction and electrochemical characteristics enable them to charge much faster than a conventional Wet Cell battery, but you already know that, it’s in ‘the book’ :-)
* * * * *
(FollowUp ID: 353703) From NudeNUT
The answer to my question says:
in discussions with a large battery manufacturer it was commented that it is best to use identical batteries but Redarc do not request or require it.
(FollowUp ID: 355201) From Uncle
>In our discussions with a large battery manufacturer it was commented
>that it is best to use two identical batteries in a dual battery system.
>In practice however many of our customers are using two differing
>batteries (cranking battery and a deep cycle battery) and (like you)
>their systems have successfully operated over many years.
(followUp ID: 356991) From Mainey
(Quote) In answer to your question:-
In our discussions with a large battery manufacturer it was commented that it is ideal to use two identical batteries in a dual battery system and therefore we pass that information on to our customers. In practice however, the large majority of our customers are using two differing batteries (cranking battery and a deep cycle battery) and their systems have and continue to successfully operate over many years.
We are UPDATING our website and we will REMOVE the confusion.
Thanks for letting me know.(end quote)
I’m not sure why the “battery manufacturer” has to be quoted as to the working or possibly not working of a Redarc solenoid when Redarc is asked a direct question about their own product, as in each E-mail received (above) it can be clearly be seen the “battery manufacturer” is quoted as the responsible entity making the technical decision in each and every reply sent to those who took the time and also made the effort to ask the same question of Redarc.
The only difference is;
in my reply, Redarc actually declare they “would remove the confusion” shown on their website, and they actually deleted the ‘Deep Cycle battery’ from the diagram shown there, replacing it with an ‘auxiliary battery’
I did not ask them to do this, I asked them only to clarify the situation as to if a Deep Cycle battery could be used with a Start battery with their Solenoid isolator, nothing else, this change to their website was obviously their way of “removing the confusion” as they put it.
I believe by taking this deliberate action Redarc have actually shown their battery isolator as it is recommended to be used - by them, after all it’s their advice and their website, not a ‘battery manufacturers’ and not your’s or
mine either, L0L.
As I said in my original post, I was not looking for an argument.
I have presented the available “written facts”, as can be read in the various E-mails which were produced by the other respondents, myself and Redarc on the same subject as is shown in the link to the relevant thread recently found by David.
Therefore, I believe this readily clears up any misunderstandings!
FollowupID:
411375