1. Always wear proper eye, face and hand protection.
2. Keep sparks, flames and cigarettes away from the battery.
3. Do not remove or damage the vent caps on sealed valve-regulated types.
4. Do not open in any way sealed valve-regulated batteries.
5. Cover vents with a damp cloth to minimize gas seepage.
6. Make sure the work area is well-ventilated.
7. Never lean over the battery while testing, boosting or charging.

1. Disconnect the ground cable (negative cable) first.
2. Note the position of Positive (+) and Negative (-) cables. Mark cables for the correct connection to the new battery.
3. Remove old batteries.
4. Clean terminals and cable connections. Broken, frayed, brittle, kinked or cut cables should be replaced.
5. Clean and/or paint and repair the battery compartment and hold down.
6. Install and secure the new battery. Be careful not to ground the terminals on any metal mounting, fixture or body part.
7. Connect the cables tightly. Connect the ground cable last to avoid sparks.

1. Before operating the charger, make sure to read and understand the instructions that come with the charger. Never attempt to charge a battery without first reviewing and understanding the instructions of the charger that is being used. Always ensure the charger's charging curve meets the batteries' charging requirement.
2. Always charge batteries in a ventilated area.
3. Always wear protective gear for your eyes.
4. Never charge a visibly damaged battery.
5. Never charge a frozen battery.
6. Connect the charger leads to the battery; the (+) positive lead to the positive (+) terminal of the battery, and the (-) negative lead to the negative (-) terminal. If the battery is still in the vehicle, connect the negative lead to the engine block to serve as ground. If the vehicle is positively grounded, connect the positive lead to the engine block. To be absolutely sure, ensure the battery is completely disconnected from the equipment and hook the charger leads up accordingly.
7. Make sure that the charger lead, both at the charger and the battery side of the leads, connections are tight.
8. If the charger has a battery type selector switch (I.E. Flooded, Gel, or AGM), set it to the proper location.
9. Set the timer if it is available and turn the charger on.
10. If the battery becomes hot or if violent gassing or spewing of electrolytes (in the case of flooded battery types) occurs, reduce the charge rate or temporarily halt the charger. If these events repeat themselves even after you restart the charger and/or reduce the charge rate, take the battery to a professional to be evaluated.
11. Always turn the charger OFF before removing the leads from the battery to avoid dangerous sparks.

1. Battery acid or electrolyte is a solution of sulfuric acid and water that can destroy clothing and burn skin. Use extreme caution when handling electrolytes and keep an acid-neutralizing solution, such as baking soda or household ammonia mixed with water, readily available in the event of a spill.
2. Always wear eye protection.
3. If electrolyte is splashed into the eye, immediately force the eye open and flood it with clean, cool water. Get medical attention immediately.
4. If electrolyte is somehow taken internally, drink large amounts of water or milk. DO NOT induce vomiting. Get medical attention immediately.
5. Neutralize with baking soda any electrolyte that spills in the work area, and rinse with water.

When booster cables are used:

1. When jump starting, always wear proper eye protection.
2. Never lean over the battery.
3. Do not jump start a damaged battery.
4. Do not jump start a frozen battery.
5. Inspect both batteries before connecting booster cables. Be sure vent caps are tight and level, and place a damp cloth over the vents of both batteries.
6. Make sure the vehicles are not touching.
7. Make sure both ignition switches are turned to the OFF position.
8. Connect the positive (+) booster cable lead to the (+) terminal of the discharged battery.
9. Connect the other end of the positive (+) booster cable to the positive (+) terminal of the boosting battery.
10. Connect the negative (-) cable to the negative (-) terminal of the boosting battery.
11. Make the final connection of the Negative (-) cable to the engine block of the stalled vehicle, away from the battery. If this is not possible, be careful when connecting the negative (-) cable to the discharged battery, as the electrical current may jump at the discharged terminal, creating a spark.
12. Start the vehicle and remove cables in the reverse order of their connection. 

1. Corroded Terminals - this will cause a poor connection between the post and cable and could result in poor charging from the vehicle alternator or simply no current delivered to the vehicle's electrical system. This can be overcome by cleaning the post with a wire brush and neutralizing the corrosion with a mixture of baking soda and hot water.
2. Loose Connection - can be a result of not properly loosening the battery clamp when changing the battery, not correctly tightening the battery clamp or over-tightening and stretching the battery clamp. This can be overcome by adequately tightening the battery clamp or replacing the cable.
3. Seasonal batteries often get put away for the off-season in a discharged state; this will result in the battery testing very poor when it is needed for the next season or very low voltage and an inability for it to start the vehicle. Seasonal batteries should be charged before storage for the off-season, and the main positive or negative cable should be disconnected so no parasite draws can discharge the battery; it is also a good idea to charge the battery during the off-season or leave it on a maintenance charger when not in use.
4. Batteries that are allowed to sit discharged during the winter stand a good chance of freezing, this could result in the plates being damaged or the battery case splitting open and electrolyte leaking out. This can be prevented by charging batteries before putting them away for the winter and checking and charging them periodically during the off-season for the state of charge; vehicles with high parasitic draw should have the batteries disconnected or left continuously on a maintenance charger to avoid discharging.