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2016ATV

IMPORTANT INFORMATION ABOUT BATTERIES How do you determine whether a conventionnal battery or Why should you charge your AGM battery has been charged Why do winter months seem to battery once a month? properly ? bring more battery problems ? When not in use, a battery discharges on a daily basis sometimes up to 0.5 to 1%. This rate of After the battery has undergone charging (as per discharge increases when the climate is warm. battery manufacturer’s specifications), the following The main reason is that the batteries have to To make up for this loss from disuse, connect caracteristics will tell you if a conventionnal or work so much harder in cold weather. Engine oil your battery to Yuasa’s 12V automatic Charger AGM battery has been charged properly : is thick, so engine cranking effort is much higher. to maintain a constant float charge during the 1-For conventional batteries, specific gravity of Also a battery’s charging efficiency decreases in extended time between uses. the acid must be 1,265 or higher (4 balls or more vaporize as readily in the cold, which means thatcold temperatures. In addition, gasoline does notfloating), or the terminal voltage must read 12.5 volts or higher. even more battery cranking effort is required. 2-For AGM (Absorbed Glass Mat, also referred to as maintenance free) batteries, the terminal volt age must read 12.8 volts or higher. (check with voltmeter). Sometimes a battery does not What is sulfation ? How should a battery be hold a charge. Why ? Sulfation is the crystal formation of lead sulfate on maintained ? When a battery is in an excessively discharged the battery plates or cells and one of the biggest Good battery maintenance should include state, it does not readily accept a high current battery killers. This happens two ways: the following: charge. The battery may appear to be accepting 1- When discharging continues uninterrupted, the 1- Always keep the acid level between LOWER and charge, but charging is occuring only at the surface crystals grow and blossom into sulfation. UPPER lines on conventional batteries. of the plates overheating the plates and destroying 2- When the battery plates are exposed to air due 2- Never allow the battery to stand in a discharged the battery. In such a case, the battery must be to low electrolyte level, the active lead material condition. charged of a low current flow for an extended oxidizes and sulfates. Once the plates have been 3- If necessary, charge the battery once a month period of time. sulfated, the activity of the affected area is severely with Yuasa’s 12V Automatic Charger. impaired, and the battery will begin to lose life. 4- Keep battery clean, dry and free of dirt, Clean battery terminals to prevent corrosion. 5- Inspect vent tube, ensuring that it is not bent, twisted or clogged. 6- Check cables, terminals and case for obvious damage or loose connections. What can cause a new battery to fail soon after installation ? If a new battery becomes unserviceable within a What is the purpose of the few days or weeks, after its installation, it battery exhaust vent tube ? may be due to one or more of the following reasons : 1- The battery has been activated incorrectly, When a conventionnal battery is charged and dissipating its strength from the outset. discharged, water contained in the electrolyte is 2- The battery has been left too long without proper decomposed, generating hydrogen and oxygen initial charging or has been allowed t o What is the normal charge rate gases. These gases are vented out of the battery become sulfated from disuse. through the exhaust vent tube to prevent potentially 3- A faulty charging system for a battery ? damaging high pressure gas accumulation. Be 4- A short circuit in the electrical system. Naturally, batteries of different capacities require sure to remove sealed tube when installing a new 5- Battery terminals become disconnected different charge rates. Generally a battery should battery. AGM batteries (maintenance free batteries) 6- Electrical capacity of the battery is insufficient for be charged at a slow rate of 1/10 its rated do not have an exhaust vent tube. They have a size of the vehicle. capacity in amps. built-in safety valve that ventgases. 7- A blown fuse. 462


2016ATV
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