
LD700-24 Manual
Selectronic Australia
5
Where batteries are joined
in
parallel
, add the capacities
together, the voltage will
remain the same as each
batteries voltage.
2 x 24Volt 150 Ah batteries connected in parallel would have a
capacity of 24 Volts – 300 Ah.
Only use identical batteries when joining batteries together.
How long will my battery last
To work out how long your battery will last follow this basic guide.
This guide presumes commencing with a fully charged battery.
Take the total rating of the appliance being run
1
light globe
25watts
1
20 inch TV
67watts
1
VCR
30watts
Total load
=122watts
Divide this figure (122) by 20 to know the approximate DC current draw
=6.1Amps
To convert this to Ampere hours, multiply by the number of hours used -
Say 1 hour
=6.1Ah
So if we have a 150Ah battery, then with the above example we should have
150 minus 6.1 = 143.9 Ah remaining in the battery.
As a general guide never discharge a battery below 50%. The deeper
a battery is discharged on a regular basis, the less life you can expect
from the battery. The Ah rating of a battery will also be reduced if
the discharge current is higher than the rated discharge current. See
your battery specifications for full details.