|
CCA,
CA, AH
and RC
what are
these
all
about?
Well
these
are the
standards
that
most
battery
companies
use to
rate the
output
and
capacity
of a
battery.
Cold
cranking
amps (CCA)
is a
measurement
of the
number
of amps
a
battery
can
deliver
at 0 ° F
for 30
seconds
and not
drop
below
7.2
volts.
So a
high CCA
battery
rating
is good
especially
in cold
weather.
CA
is
cranking
amps
measured
at 32
degrees
F. This
rating
is also
called
marine
cranking
amps (MCA).
Hot
cranking
amps
(HCA)
is
seldom
used any
longer
but is
measured
at 80 °
F.
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.
An amp
hour
(AH) is
a rating
usually
found on
deep
cycle
batteries.
If a
battery
is rated
at 100
amp
hours it
should
deliver
5 amps
for 20
hours,
20 amps
for 5
hours,
etc. |
