Technical Manual - yuasabatteries.com

1 Technical Manual Powersports Batteries Consumer Products yuasa 12V, 1 AMP Automatic Battery Charger & Maintainer Part No. YUA1201000. s 3 stage charge cycle s Easy-to-use, simply attach to battery & plug it in s Charges and maintains your battery s 3 color LED displays your charge status at a glance s Reaches volt peak then automatically switches to maintenance mode s Designed to prevent overcharging s Includes quick connect adapter and alligator clips Jumper Cables Part No. YUA00 ACC07. s Easy to use, easy to store s Convenient storage bag s Heavy duty, 8 ft., 8-gauge cables won't stiffen or freeze s Tangle resistant, encased rubber grips for safer use Battery Charger Lead Part No. YUA00 ACC04. s Simple, bolt-on connection with fuse s Can be used with yuasa 's chargers for applications ranging from motorcycles, automobiles and personal watercraft to ATVs, snowmobiles and riding mowers Table of Contents 1.

2 About .. 4. 2 . Battery Basics & Safety .. 5. The Lead Acid Battery ..5. What Does a Battery Do? ..5. Battery Construction and Chemistry..6. Battery Safety ..7. Battery Types..8. AGM Batteries ..8. Conventional Batteries ..9. Battery Ratings .. 10. 3 Battery Discharging & Charging .. 11. Battery Discharging .. 11. Reasons for Self-Discharge .. 11. Battery Charging .. 12. Charging a Deeply Discharged Battery .. 13. 4 Battery Selection & Activation .. 14. About Sensors .. 14. Activating a Battery .. 15. Choosing a Battery Charger .. 15. Activating AGM Batteries .. 16. Activating Conventional Batteries .. 18. 5 Installation, Testing & Maintenance.. 20. Battery Installation .. 20. Inspecting a Battery .. 20. Battery Testing Hydrometer.. 21. Battery Testing Voltmeter .. 22. Charging System Quick Check .. 22. Battery Load Testing.

3 22. yuasa Digital Powersports Battery Tester .. 23. Battery Maintenance.. 23. Battery Storage .. 23. Sulfation and Freezing .. 24. 6 Glossary .. 25. 3. 1 About About yuasa About This Manual yuasa Battery, Inc. has been producing batteries in the Working on all types of powersports vehicles, technicians and to uncompromisingly high standards since 1979. Today owners are often faced with battery related questions: how do yuasa Battery is one of the largest American manufacturers, I activate a new battery, how do I charge a battery, what type distributors and original equipment (OE) suppliers of batteries of battery charger should I use, what's the difference between for motorcycles, all-terrain & utility vehicles, snowmobiles AGM and Conventional batteries, how do I test or install a and personal watercraft in North America.

4 yuasa supplies battery and more. batteries to more powersports OE manufacturers than all other competitors combined. Whether you are a professional technician working in a motorcycle dealership, or an avid powersports enthusiast, Most of the large capacity powersports batteries are yuasa 's Technical Manual will provide you with in-depth manufactured in our Laureldale, Pennsylvania plant. All other information on how a battery operates, new battery activation, powersports batteries are produced in a yuasa state-of-the- maintenance, installation tips and how to get maximum power art manufacturing facility in various countries throughout and life from yuasa batteries. We'll take a close look at battery the world. Each yuasa facility follows the same rigorous charging and chargers, as well as several methods to accurately manufacturing processes to ensure the high quality standards test a battery and determine its state-of-health.

5 Throughout set by yuasa are met. this Manual information that is highlighted in Bold Text is especially noteworthy. In addition, at the end of each section We provide our customers world-class quality products and Important Points to Remember are listed as bullet points. If services through ISO-9000 (International Organization for you, or your customers need information about yuasa 's battery Standardization) registration at all yuasa manufacturing line and its powersports applications, or if you have questions facilities. Through employee involvement, teamwork, regarding yuasa battery chargers and testers, this Manual will design/process innovation, waste elimination and supplier provide the answers you're looking for. partnerships yuasa 's commitment to quality is an on-going process. At yuasa we are proud of our products and customer support.

6 More information about yuasa can be found at or by calling 800-431-4784. 4. Battery Basics and Safety 2. capacity. Batteries with less capacity are capable of starting The Lead Acid Battery a large displacement engine, but they may not do so reliably, especially in colder climates. How batteries are rated is What Does a Battery Do? covered later in this Manual . Powersports depending on your interests, the term can bring 2. To supply additional current when the charging to mind many vehicles. Street-ridden motorcycles, off-road system can't keep up with electrical demand. A. bikes, sport & utility ATVs or watercraft all very different but battery's second job is to supply current when the charging all with one thing in common they all have a battery. Most system is overworked. This usually occurs (though not enthusiasts don't give the battery in their vehicle much thought always) when the engine is being run at lower than normal until the engine won't start then the battery becomes the operating speeds.

7 Electrical components including: lights, center of attention. We'll take a close look at the how and why fuel pump, ignition & fuel injection systems use most of of batteries, but rst it's easier to understand how a battery the charging system's capacity. If aftermarket electrical works if you know what it is supposed to accomplish. Batteries accessories have been added (heated clothing or extra have three jobs: lighting for example) the charging system may not keep up 1. To provide electrical power to start the engine. with the added electrical demand and the battery supplies A battery's primary job is engine starting. Engine size, the additional current to power these components. or displacement is the determining factor for amperage 3. To act as a voltage stabilizer for the charging system. requirements and battery capacity for a speci c application.

8 The third job of a battery is to act as a voltage stabilizer A battery's capacity is rated in two ways; amp-hour (AH). for the charging system. Powersports charging systems and cold cranking amps (CCA). The amp-hour rating is the need something to push against to keep from producing battery's ability to deliver current for an extended period of excessive voltage. In addition, high voltage spikes may be time. Cold cranking amps is the battery's ability to produce produced when turning on, or off certain electrical circuits. current in low temperatures. A battery's CCA rating for a These uctuations in voltage are partially absorbed by the speci c application is directly proportional to engine size battery, which protects solid-state components, including which determines the minimum level of amperage for computers and ignitions systems from damage.

9 Starting. CCA must be met or exceeded by the battery's Thru-Partition Construction Patented Sealed Post provides shorter current path with less resistance prevents acid seepage, than over the partition construction to get more reduces corrosion, cranking power when you need it extends battery life Safety Valve/Flame Arrestor relieves excess Heat Sealed Case To Cover pressure bonded unit provides greater strength; protects against Special Active seepage and corrosion. Material compounded to withstand vibration, Polypropolyene Cover and Container prolong battery life assures reserve electrolyte capacity for and dependability cooler operating temperatures;. provides greater resistance to gas and oil; withstands higher impact in Special Grid Design extreme weather conditions. withstands severe vibration, assures maximum Special Separator conductivity makes the battery spill-proof.

10 Valve regulated design eliminates water loss and the need to refill with acid 5. Battery Construction and Chemistry water, sometimes called battery acid. When an electrical load is placed across the battery's terminals, a chemical process Technically speaking, a battery is a device that converts starts inside the battery that produces electrical energy. chemical energy to electrical energy. It's important to understand that a battery does not store energy, or electricity, Battery Capacity. The size and number of plates within each it stores a series of chemicals, and through a chemical reaction cell have a direct relationship to battery capacity, or its ability electricity is produced. to start engines of various sizes. Cranking current capacity (or ow of electrical energy) increases as the plate surface area What's Inside the Battery Case?