All lead-acid batteries contain highly corrosive sulfuric acid, generate explosive gases and have warning labels which should be observed closely. For best results, charge the battery as soon as you know it is discharged. To charge your battery, follow these steps and important safety tips: Before Charging: 1) Read the charger manufacturer's instructions. 2) Put on protective eyewear, rubber gloves, work clothes and remove all jewelry. 3) Place the battery in a well ventilated area. 4) Don't charge a frozen battery. Allow the battery to warm to about 60?F before charging. 5) If applicable, remove the vent caps and check the battery's water level and, if low, add distilled water to cover the tops of the plates. Do not overfill. 6) To determine if the battery needs to be charged, test it with a hydrometer to determine its specific gravity and/or with a voltmeter to determine its state of charge. 7) If applicable, reinstall vent caps before charging. 8) While the charger is unplugged, connect the leads to the proper battery terminals. Note: For side-post and studded batteries, we recommend that you use adapters to insure adequate contact. For additional information regarding adapters, contact Interstate Batteries. 9) Set the charger to the proper settings for your battery, e.g. 6 volts vs. 12 volts, low-maintenance vs. sealed, standard automotive vs. deep cycle. 10) Plug in and turn on the charger. 11) Don't wiggle the connections to check contact while the charger is turned on or plugged in. 12) Choose the lowest amperage setting initially. Once the charger is on and the battery is charging, you may want to choose a higher amp setting to reduce charge time. During Charging: 1) Keep the vent caps on. 2) Don't allow smoking, open flames or sparks near the battery. 3) Don't allow the battery to become hot to the touch. After Charging: 1) Immediately after the battery is fully charged, turn off and unplug the charger. Continuing to charge a fully charged battery will severely damage the internal plates and shorten battery life. 2) Disconnect the leads from the battery.
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