Date:         Mon, 13 Mar 2006 11:03:36 -0800
Reply-To:     mark drillock <drillock@EARTHLINK.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         mark drillock <drillock@EARTHLINK.NET>
Subject:      Re: Sure Power 1315 battery separator
Comments: To: TC <trclark@SHAW.CA>
In-Reply-To:  <1a3f01c646cc$f7cba930$c901a8c0@w2ktopcat>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Here we go again, that old lie. Don't believe every slick sales spiel
you see, even on the web. That is a bunch of BS used to hide the truth
by someone who sells the isolators. The SurePower 1315 Separator  IS a
relay/solenoid!  Is Smith saying that SurePower sells crap? And with the
same breath trying to sell older largely obsolete SurePower Isolator
products?

The SurePower 1315 is a  REQUIRED addon by many fleet vehicle contracts
as the best way to add additional batteries without modifying the base
vehicle charging wiring.

Mark

TC wrote:

>>>ARE THERE THERE ANY ADVANTAGES TO AN ISOLATOR at all ?
>>>
>>>
>>well grinding away here it looks like there are 2 disadvantages
>>(please correct me if i have this wrong)
>>1) MTBF-isolators are all solid state(should last longer),
>>    1315 relay is mechanical life expectancy is 5-8 years
>>2) Separators charge in parallel so if the 2 battery's are not of the
>>
>>
>exact
>
>
>>same type/use,
>>    the recharge is effected by the different battery recharge requirement
>>   &  the life expectancy could be reduced since the batteries are not
>>isolated on the recharge
>>    cycle and 1 or the other maybe be subject to over charge condition
>>    This is also mitigated because the there is also load on the
>>
>>
>alternator
>
>
>>so the risk of over charge
>>     is some what reduced.
>>   How much is the reduced the life expectancy ???
>>   Not enuff to worry about ?
>>
>>
>OOK I just found this any comments ?
>http://www.smithae.com/surepower.html
>
>
>
>