Yuasa YUMICRON YUA00ACC04 Manuale Utente

Sealed (MF) VRLA and High PerformanceSealed (MF) VRLA (Valve Regulated Lead Acid) means a batterythat’s perfect for people who have better things to d

As with anything, with batteries you have to know whatyou’re doing. Batteries can be dangerous. But they don’thave to be if some simple safety preca

Selecting the Proper BatteryPOINTS TO REMEMBER❐ Check current Applications Book or microfiche for right replacement battery.❐ There may be two or more

About SensorsMany of today’s motorcycles use batteries equippedwith sensors. They’re either built in the battery, orpacked with it. A sensor is a “l

3. Let battery stand for at least 30 minutes.Move or gently tap the battery so that any air bubblesbetween the plates will be expelled. If acid lev

As we mentioned earlier, an electrochemical actionwithin the battery produces electricity. To understandit, let’s look inside a battery again: you’ll

Batteries have a natural tendency to discharge. Thereare a number of reasons why: self-discharge, hightemperatures, drain from electrical accessories

Let’s see what happens as the two work together todischarge a battery:The battery, starting out 100% charged, has a 30mAdischarge rate from electrical

Ampere-Hour and Cold Cranking AmpsThere are two battery ratings you need to know:capacity, or ampere-hour rating, and cold crankingamps, or cold start

4. Check electrolyte leveland add distilled water ifnecessary. Don’t add acid –only water. Before any tests,charge the battery so the waterand elec

Part No. YUA1201501Yuasa’s Automatic 12V 1.5 Amp battery charger incorporates superior 5 stage charging technology. This high power unit provides err

Battery TestingMethods of Checking Battery ConditionState of Syringe Digital 5-BallCharge Hydrometer Voltmeter Hydrometer100% Charged w/Sulfate Stop 1

Chargers and ChargingThere’s a simple rule of thumb about batteries, and ifyou’re a dealer or a mechanic, you know that peopleignore it all the time:

TAPER CHARGER: Similar to the trickle charger, theautomatic taper charger charges at a fixed voltage. Asthe battery’s voltage increases with the amou

don’t. We don’t recommend it, and here’swhy: only the surface area of the battery platescan be quick charged. A lower current chargesthe battery mor

22Batteries don’t demand a lot of attention. But not givingyour battery the attention it needs can leave youstranded... or poorer by the cost of a ne

POINTS TO REMEMBER❐ Monthly maintenance and testing are a must.❐ Most important: make sure battery is charged and fluid level is correct.❐ Disconnect

SEALED VRLA BATTERYCONSTRUCTIONNew Generation Battery TechnologyVRLA batteries… and what makes them special.FeaturesThe sealed VRLA battery is the bat

POINTS TO REMEMBER❐ Gas Recombinant technology produces a more compact battery.❐ After activation, no need to check electrolyte or add water.❐ Sealing

26●Use only the electrolyte container that comes with the battery. Sealed VRLA battery electrolyte is a higher concentration of sulfuric acid. All s

Remember: unlikea conventional battery, the sealedVRLA battery won’tbe topped off during its life. Never pry off sealing caps: it’sdangerous anddama

PREFACE:A Practical Understanding of Lead Acid Batteries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

How healthy is your sealed VRLA battery? Since a sealedVRLA battery is sealed – and the sealing caps are neverremoved – you won’t be able to check th

(10 hour rate dischargecharacteristics)Terminal Voltage (v)2C1C0.6C0.4C0.2C0.1C29Think about what types of vehicles a sealed VRLA batterygoes into: mo

30Lead-calcium technology definitely slows self-discharge,but a combination of heat and idleness will still drain asealed VRLA battery, like the conve

CHARGING INSTRUCTIONS FOR NEWLY ACTIVATEDSEALED VRLA BATTERIES31Charging a Newly Activated Sealed VRLA Battery5SECTIONSealed VRLABatteriesSealed VRLA

The single most important thing to maintaining a sealedVRLA battery is don’t let it sit discharged:keep it fully charged. A sealed VRLA motorcyclebatt

33Batteries with voltage below 11.5v may require specialequipment and procedures to recharge.In charging an overdischarged battery having a terminalv

Acid Sulfuric acid, used to describethe electrolyte or liquid in a cell.Active Materials Materials in abattery that react chemically to pro-duce elec

Cast-On Strap A multiple connec-tor that had been cast onto the platesdirectly in a combination mold/burn-ing jig; contrasts with burning of platesand

Dry Charged Battery plates thathave been subjected to the dry charg-ing process.Dry Charging Manufacturingprocess in which tank-formed batteryplates

Hydrometer A device used to mea-sure density or specific gravity of elec-trolyte solutions.Hydroset Curing process for platesthat oxidizes the lead p

Lead acid batteries are relatively simple in design.Dissimilar metal plates are immersed in an electrolytesolution consisting of sulfuric acid and wat

Negative Terminal The terminalfrom which current flows through theexternal circuit to the positive terminalwhen the cell discharges.OHM A unit of elec

Short Circuit Current The currentthat flows when the two terminals of acell or battery are inadvertently con-nected to each other.Side Terminal SLI ba

Volt Efficiency The ratio of theaverage voltage of a cell or batteryduring discharge to the average volt-age during subsequent recharge.Voltage The

Part No. YUA00ACC02Syringe Hydrometer Part No. YUAMHYDRO •Shows exact specific gravity reading on conventional battery’s conditionBattery AnalyzerPart

FORM NO. YUA-069 (Rev. 4/04) PG – 10,000 PRINTED IN U.S.A.P.O. Box 14715Reading, PA 19612-4715Telephone: 1-866-431-4784 • Fax: 610-929-1295yuasabat

About this bookIf you’re looking for more than everyday information about batteries, read on. Maybe you’re a retailer, the expert whose battery knowle

Features and Benefits41SECTIONBattery Basics and SafetyComponent Features BenefitsCast Grid Special Grid Design Severe vibration resistance & impr

Let’s look first at battery basics: what abattery is and how it works.Lead acid batteries are used as a power source for vehiclesthat demand a constan

What’s different? First there’s cranking power: YuMicronhas more because YuMicron batteries boost plate surfacearea with thin, high-tech separators t

The industry standard for motorcycles, snowmobiles and ridingmowers, our Conventional Battery is anything but conventional.This workhorse is engineere