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Amperage (CCA) rating of the battery. See the label factory-installed battery specifications to determine the battery CCA rating. WARNING: • IF THE BATTERY SHOWS SIGNS OF FREEZ- ING, LEAKING, LOOSE POSTS, OR LOW ELECTRO- • EXPLOSIVE HYDROGEN GAS FORMS IN AND AROUND THE BATTERY. DO NOT SMOKE, USE • THE BATTERY CONTAINS SULFURIC ACID, WHICH IS POISONOUS AND CAUSTIC. AVOID CON- • IF THE BATTERY IS EQUIPPED WITH REMOV- ABLE CELL CAPS, BE CERTAIN THAT EACH OF Before proceeding with this test, completely charge the battery. Refer to Battery Charging in the index (1) Disconnect and isolate both battery cables, neg- ative cable first. The battery top and posts should be (2) Connect a suitable volt-ammeter-load tester (Fig. 11) to the battery posts (Fig. 12). See the (3) Rotate the load control knob (carbon pile rheo- stat) to apply a 300 ampere load to the battery for (4) Allow the battery to stabilize to open-circuit voltage. It may take up to five minutes for the bat- (5) Rotate the load control knob to maintain a load equal to 50% of the CCA rating of the battery (Fig. reading, then return the load control knob to the Off Fig. 11 Volt-Ammeter-Load Tester - Typical Fig. 12 Volt-Ammeter-Load Tester Connections - Typical 1 – INDUCTION AMMETER CLAMP Fig. 13 Remove Surface Charge from Battery - Typical 8A - 12 BATTERY WJ DIAGNOSIS AND TESTING (Continued) |