Wednesday, Jan 26, 2005 at 02:42
Ray,
(Quote) Anyway the bottom line is that my battery supplier said it was ok to parallel my starter and my deep cycle so warranty on my
Redarc should not be affected by this (end quote)
Ray, when any bi-metal solenoid closes and allows the two batteries to equalise, power immediately drains direct from one battery to equalise with the other battery, when one is a 90+ a/h D C battery and the other a Cranking battery of approx 65 a/h, you then have to recharge the now only half charged D C battery again.. Even 0zi & nn will agree with that statement….
It takes a long time to fully recharge a 90+ a/h D C battery under those continuing conditions from an alternator.
Ray, you have said your
redarc tech specs sheet states "We recommend the use of similar style batteries in the one installation" that is a fair statement, however, why do
redarc show both a DC battery and a cranking battery in the picture on the website?
Just what is a "similar style" battery, who do we ask ?
Do we get out the dictionary, or maybe search the web for authoritive guidance from battery specialists... yes!
http://www.marine-electronics.net/techarticle/battery_faq/b_faq.htm#3
“CAR batteries are especially designed for high initial cranking amps (usually 200 to 400 amps for five to 15 seconds) to start a car and for shallow (10% or less) discharges.
They are NOT designed for DEEP CYCLE discharges.
DEEP CYCLE batteries are designed for prolonged discharges at lower current and NOT for high current discharges. The plates in a CAR battery are more porous and thinner than in DEEP CYCLE batteries and use sponges or expanded metal grids instead of solid lead.
A DEEP CYCLE battery will typically outlast two to ten CAR batteries when used in DEEP CYCLE applications. In warm weather, starting an engine will typically consume less that 5% of a car battery's capacity.
In contrast, DEEP CYCLE batteries are used for applications that will consume between 20 and 80% of the battery's capacity.
A DEEP CYCLE battery will work as a starting battery IF it can produce enough current to start the engine, but not as well as a CAR battery”
Ray, as can be seen at every battery manufacturers website that contains precise specifications, a CAR battery is definitely built to do a different job to a DEEP CYCLE battery... Why, because they are purpose built DIFFERENTLY, are they similar, well they are generally the same colour, however even the method of describing their power capabilities is totally DIFFERENT, true not even similar, as in CCA verses AMP HOURS.
Ray, you have posted the facts, they can no longer be disputed… can they ?
As a general rule when someone wants to demean a post, but can't simply because the specifics are incontrovertible, they then assail the 'messenger' to conceal their own imprecision.
FollowupID:
353796