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UPGRADE COMING SOON BATTERY CHARGERS Yuasa SmartShot Automatic 12V 1.5 Amp 5 Stage Battery Charger Part No. YUA1201501 Yuasa’s Automatic 12V 1.5 Amp battery charger incorporates superior 5 stage charging technology. This high power unit provides error proof operation to fully charge sealed maintenance free and conventional lead acid batteries Provides up to 16 volts to enable recovery of sulfated batteries during • pre-qualification stage 28 day Charge Recycle – re-evaluates battery status f
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CONTENTS PREFACE: A Practical Understanding of Lead Acid Batteries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 SECTION ONE: Battery Basics and Safety About this book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 About YUASA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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PREFACE A Practical Understanding of Lead Acid Batteries Lead acid batteries are relatively simple in design. reduced specific gravity and becomes a higher percentage Dissimilar metal plates are immersed in an electrolyte of water than sulfuric acid. During this condition, the solution consisting of sulfuric acid and water. These battery may freeze at temperatures as high as 32°F. are then insulated from each other with a permeable, The electrolyte in a fully charged battery will not freeze
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Battery Basics and Safety 1 About this book If you’re looking for more than everyday information about batteries, read on. Maybe you’re a retailer, the expert whose battery knowledge and recommendations guide customers every day. Perhaps you are a service technician or dealer – the person vehicle owners turn to with questions. Or maybe you’re an enthusiast set on “knowing everything” about your bike and how to keep it running. Whatever your reason for wanting to boost your battery IQ, YUASA
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Battery Basics and Safety 1 Features and Benefits Component Features Benefits Cast Grid Special Grid Design Severe vibration resistance & improved conductivity Active Material Proprietary Formulation Reduced shedding, maximum utilization, & long service life Pasted Plates Specified Thickness Ensures vibration resistance through & Weight precise compression & proper service life through specified active material balance Dried-Charged Tank Formed & Properly dried plates in a sealed battery Pla
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Battery Basics and Safety 1 The Lead Acid Battery Let’s look first at battery basics: what a Starting your vehicle depends on a battery. battery is and how it works. Technically speaking, the battery is an electrochemi- Lead acid batteries are used as a power source for vehicles cal device that converts chemical energy to electrical that demand a constant and uninterruptible source of energy. The first thing you notice inside a battery is energy. Just about every vehicle today does. For examp
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Battery Basics and Safety 1 The cells consist of lead plates that are positive and What’s different? First there’s cranking power: YuMicron negative charged. Inside the cell they’re stacked alter- has more because YuMicron batteries boost plate surface nately – negative, positive, negative. Insulators or sep- area with thin, high-tech separators that make room for arators – usually fiberglass or treated paper – are two extra plates in each cell. YuMicron also has a special placed between the
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Battery Basics and Safety 1 The YUASA battery line... The right battery for the right job – that’s where it all starts. YUASA’s comprehensive line has the right small engine starting battery... whatever the vehicle, however tough the application. YUASA’s Conventional Battery The industry standard for motorcycles, snowmobiles and riding mowers, our Conventional Battery is anything but conventional. This workhorse is engineered to protect against seepage and corro- sion... withstand vibration...
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Battery Basics and Safety 1 YuMicron CX For top power, less maintenance and longer life, YuMicron CX is the battery of choice. The first motorcycle battery built on lead-calcium technology, YuMicron CX is specially designed for today’s big, complex machines, where higher cranking power is a must. It delivers all the features of the standard YuMicron – plus... Unique CX design for higher cold cranking amps Lead-calcium technology reduces water loss – and servicing – by 66% compared to lea
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Battery Basics and Safety 1 Battery Safety As with anything, with batteries you have to know what 5. Properly connect charger to battery: positive to you’re doing. Batteries can be dangerous. But they don’t positive, negative to negative. Unplug the charger or have to be if some simple safety precautions are followed. turn it off before you disconnect the leads; that cuts down on the chance of sparks. Basically, working with batteries poses two hazards: potentially explosive gases that are gi
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Selecting and Installing a New Battery 2 Selecting the Proper Battery Selecting the right battery is an important decision. cranking power. And if the added benefit of never You’d be amazed how often the “problem” with a battery adding water again appeals to you, go with the High is that it’s the wrong one for the application. Performance Maintenance Free or the Maintenance Free VRLA style batteries. To make doubly sure you’re on track, you’ll need one of two things – either the latest YUASA Ba
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Selecting and Installing a New Battery 2 About Sensors Many of today’s motorcycles use batteries equipped one is this: replace both battery and sensor at the with sensors. They’re either built in the battery, or same time. packed with it. “But the sensor’s original equipment,” you say. Doesn’t A sensor is a “low fuel” warning light. It tells you when matter. Being OE doesn’t mean it ‘s OK in another man- you’re getting low – in this case, on electrolyte. The ufacturer’s battery. In fact
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Selecting and Installing a New Battery 2 Battery Activation for Conventional and YuMicron Types Sealed at the factory, a new YUASA battery has an 3. Let battery stand for at least 30 minutes. indefinite shelf life as long as it remains sealed, with Move or gently tap the battery so that any air bubbles the red cap in place, and is stored at room tempera- between the plates will be expelled. If acid level has ture. Once it’s unsealed, a battery should be activated, fallen, refill with acid to
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Inspecting, Testing and Charging 3 The Discharge – Charge Cycle As we mentioned earlier, an electrochemical action and the chemical and electrical activity inside the bat- within the battery produces electricity. To understand tery would come to a standstill. It’s bad for a battery. it, let’s look inside a battery again: you’ll see cells So is allowing a battery to remain discharged for a made up of lead plates. Some plates are positive prolonged period. Recharging becomes hard or charged.
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Inspecting, Testing and Charging 3 Reasons for Self-discharge Batteries have a natural tendency to discharge. There of 130°F are battery-killing. Been in a closed-up garage are a number of reasons why: self-discharge, high or storage building on a hot summer day recently? In temperatures, drain from electrical accessories on a many parts of the country, it’s no trick for inside tempera- vehicle, and short trips that aren’t enough to recharge tures to reach that. the battery. Accessories: Ele
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Inspecting, Testing and Charging 3 turned off, you can do one of two things: disconnect Current Drain the battery when the vehicle is in storage, or charge the battery every two weeks to a full charge. However, 12 Days x 0.030 Amps x 24 Hours = 8.64 AH cycling – or continually recharging the battery – will 8.64 AH ÷ 20 AH (Y50-N18L-A) = 43.0% Available Capacity shorten its life. Check the battery’s condition with either a hydrometer or voltmeter (or a multimeter). The PLUS (+) section on Test
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Inspecting, Testing and Charging 3 Ampere-Hour and Cold Cranking Amps There are two battery ratings you need to know: Cold start rating – the high rate or the cold cranking capacity, or ampere-hour rating, and cold cranking amps, abbreviated C.C.A. in the YUASA applications amps, or cold start rating. book – tells how well a battery can be expected to stand up to low temperatures. This rating depends on Ampere-hour rating (in the YUASA Applications book the number of plates and their surface ar
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Inspecting, Testing and Charging 3 4. Check electrolyte level 5. Check the vent tube. Make sure it’s not kinked, and add distilled water if pinched or otherwise obstructed. On a motorcycle, it necessary. Don’t add acid – should exit away from the drive chain and from below only water. Before any tests, the swing arm. Small cuts in the tube near the battery charge the battery so the water vent are OK; they’re an “emergency escape” for gas in and electrolyte mix. case the tube becomes obstr
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Inspecting, Testing and Charging 3 Battery Testing There are two types of battery tests: unloaded and that’s uncomfortably hot or cold, it’s time to use the old loaded. An unloaded test is made on a battery without conversion factors: add .001 to the specific gravity read- discharging current. It’s simplest and most commonly ing for each 3°F above 77°F or subtract .001 from the used. If you need a precise reading, loaded testing is the specific gravity reading for each 3°F below 77°F. Cell a
