18 | SAMLEX AMERICA INC.
7.1 GENERAL
i
INFO
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White Paper - Batteries, Chargers and Alternators.
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1.
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2.
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of inverters.
7.2 DEEP CYCLE LEAD ACID BATTERIES
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sources, to have a constant discharge rate, to have the capability to be deeply dis-
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for use in recreation vehicles (RV), boats and electric golf carts – so they may be referred
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powering these inverters.
7.3 RATED CAPACITY SPECIFIED IN AMPERE-HOUR (Ah)
Battery capacity “C” is specifi ed in Ampere-hours (Ah). An Ampere is the unit of measure-
ment for electrical current and is defi ned as a Coulomb of charge passing through an electri-
cal conductor in one second. The Capacity “C” in Ah relates to the ability of the battery to
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over a specifi ed time in hours before the battery reaches a specifi ed discharged terminal
voltage (Also called “End Point Voltage”) at a specifi ed temperature of the electrolyte. As a
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of C/20 Amperes corresponding to 20 Hour discharge period. The rated capacity “C” in Ah
in this case will be the number of Amperes of current the battery can deliver for 20 Hours at
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7.4 RATED CAPACITY SPECIFIED IN RESERVE CAPACITY (RC)
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vehicle can be driven after the charging system fails. This is roughly equivalent to the
conditions after the alternator fails while the vehicle is being driven at night with the
headlights on. The battery alone must supply current to the headlights and the com-
puter/ignition system. The assumed battery load is a constant discharge current of 25A.
SECTION 7 |
General Information on Lead Acid
Batteries