Battery RC
Submitted: Friday, Jan 27, 2012 at 18:00
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Rumbo1007
What does RC mean in relation to batteries?
I have a battrey with 340 RC, not sure of meaning of it?
it also has 1300 CCA?
Can someone shed some light on what i could run off it and for how long?
Reply By: Fab72 - Friday, Jan 27, 2012 at 18:10
Friday, Jan 27, 2012 at 18:10
RC = Residuel Current.
CCA = Cold Cranking Amps.
Fab = Fat Aussie Bastard.
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Follow Up By: Rumbo1007 - Friday, Jan 27, 2012 at 18:29
Friday, Jan 27, 2012 at 18:29
What could run off it for how long
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Follow Up By: Notso - Friday, Jan 27, 2012 at 18:49
Friday, Jan 27, 2012 at 18:49
I think RC means Reserve Capacity.
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Follow Up By: Notso - Friday, Jan 27, 2012 at 18:51
Friday, Jan 27, 2012 at 18:51
Reserve Capacity (RC) is a very important rating. This is the number of minutes a fully charged battery at 80 ° F will discharge 25 amps until the battery drops below 10.5 volts.
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Follow Up By: Rumbo1007 - Friday, Jan 27, 2012 at 19:49
Friday, Jan 27, 2012 at 19:49
Coud I use this battery to run a fridge for a while?
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Follow Up By: Notso - Friday, Jan 27, 2012 at 20:01
Friday, Jan 27, 2012 at 20:01
Yep,
It sounds like you have what is called a Hybrid battery. This means that it has characteristics of both a cranking battery and a deep cycle battery. I have used these as my second battery under th bonnet successfully for the last 10 or so years.
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Follow Up By: Rumbo1007 - Friday, Jan 27, 2012 at 20:05
Friday, Jan 27, 2012 at 20:05
Thanks for your help guys, what sought of ah equivalent
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Follow Up By: Notso - Friday, Jan 27, 2012 at 21:14
Friday, Jan 27, 2012 at 21:14
This link sort of explains it.
AH vs RC
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Follow Up By: Fab72 - Saturday, Jan 28, 2012 at 09:12
Saturday, Jan 28, 2012 at 09:12
Well I'll be stuffed. I've always thought RC stood for Residual Current, just goes to show I wasn't always listening at trade school. Oopps.
Thanks forumites... never stop learning on this site.
Fab.
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Reply By: MrBitchi (QLD) - Friday, Jan 27, 2012 at 18:33
Friday, Jan 27, 2012 at 18:33
BatteryFAQ
Everything you ever wanted to know about batteries :)
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Reply By: The Bantam - Saturday, Jan 28, 2012 at 11:08
Saturday, Jan 28, 2012 at 11:08
RC or reserve capacity is just another one of those BS marketing terms the battery industry ( probaly the americans) has come up with instead of providing a proper set of battery specs and some dischage curves.
It allows an easy and over simplistic comparison between batteries.
and then they even fiddle with that from time to time.
it should be specified as RC25...the capacity of the battery in minutes at 25 amps drain.
A more or less useless figure unless you are drawing 25 amps.
To make any use of it you need to calcuate it back to amp hours, but it wont give a consistent AH figure because bigger batteries will show a greater capacity by this method.
God help us if we were given a simple AH rate at the 10 hour rate and some simple discharge curves......we might be able to make reasonable comparisons between batteries and sensible engineering calculations.
ARRRRGGGGH
cheers
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