Suzuki GA413 Service Manual page 517

6H-2 CHARGING SYSTEM
GENERAL DESCRIPTION
BATTERY
The battery has three major functions in the electrical system.
D It is a source of electrical energy for cranking the engine.
D It acts as a voltage stabilizer for the electrical system.
D It can, for a limited time, provide energy when the electrical load
exceeds the output of the generator.
The battery mounted in each vehicle is the following type.
38B20L TYPE
Rated capacity
Electrolyte S.G.
CARRIER AND HOLD-DOWN
The battery carrier should be in good condition so that it will support
the battery securely and keep it level.
Before installing the battery, the battery carrier and hold-down
clamp should be clean and free from corrosion and make certain
there are no parts in carrier.
To prevent the battery from shaking in its carrier, the hold-down
bolts should be tight enough but not over-tightened.
ELECTROLYTE FREEZING
The freezing point of electrolyte depends on its specific gravity.
Since freezing may ruin a battery, it should be protected against
freezing by keeping it in a fully charged condition. If a battery is fro-
zen accidentally, it should not be charged until it is warmed.
SULFATION
If the battery is allowed to stand for a long period in discharged
condition, the lead sulfate becomes converted into a hard, crystal-
line substance, which will not easily turn back to the active material
again during the subsequent recharging. "Sulfation" means the re-
sult as well as the process of that reaction.
Such a battery can be revived by very slow charging and may be
restored to usable condition but its capacity is lower than before.
28 AH / 5HR, 12 Volts
1.28 when fully charged
(68 _F)
at 20 _C