Acura NSX 1997 Service Manual page 893

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Battery
Test
Battery fluid (electrolyte) contains sulfuric acid. It may cause severe burns if it gets on your skin or in your eyes.
Wear protective clothing and a face shield.
— If electrolyte gets on your skin or clothes, rinse it off with water immediately.
— If electrolyte gets in your eyes, flush it out by splashing water in your eyes for at least 15 minutes; call a physician
immediately.
A battery gives off hydrogen gas. If ignited, the hydrogen will explode and could crack the battery case and splatter
acid on you. Keep sparks, flames, and cigarettes away from the battery.
Overcharging will raise the temperature of the electrolyte. This may force electrolyte to spray out of the battery vents.
Follow the charger manufacturer's instructions and charge the battery at a proper rate.
Use either a JCI or Bear ARBST tester, and follow the manufacturer's procedures. If you don't have one of these com-
puterized testers, follow this conventional test procedure:
To get accurate results, the temperature of the electrolyte must be between 70°F (21°C) and 100°F (38°C).
Test Load Capacity (#1)
Apply 300 amp load for 15 seconds to remove
surface charge.
Allow 15 seconds recovery period.
Apply test load (see Test Load Chart).
Record voltage at the end of 15 seconds.
Stays above 9.6 volts;
battery is OK.
Table of Contents
If the case is cracked or the posts are loose,
replace the battery.
Check Indicator EYE Color
If the indicator shows low electrolyte, add
distilled water if possible.
EYE Indicates OK
Drops below 9.6 volts.
Check For Damage
EYE Indicates LOW
CHARGE