Yuasa SmartShot YUA1201501, Technical Manual

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Page 2: ...sa s Automatic 900mA 12V battery charger is the industry s most powerful plug in wall charger Combining the latest technology and a host of user friendly features this compact high power unit provides...

Page 3: ...s 16 Inspecting a Battery 16 17 Battery Testing Devices 17 Battery Testing 18 Chargers and Charging 19 20 Charging a New Standard Battery 20 21 Quick Charges 21 SECTION FOUR Maintenance and Storage Mo...

Page 4: ...ts Another condition that frequently occurs in a discharged battery is freezing In a deeply discharged battery the electrolyte has a reduced specific gravity and becomes a higher percentage of water t...

Page 5: ...ourse we ll also fill you in on the complete line of YUASA batteries chargers and accessories About YUASA The first thing you need to know about batteries is YUASA You might say that when it comes to...

Page 6: ...er Patented Poly Seal Eliminates acid seepage reduces Seal Terminal corrosion extends battery life Case Cover Polypropylene Superior resistance to gasoline oil impact resistant in extreme weather cond...

Page 7: ...scale A 6 volt battery will have three cells A 12 volt battery six cells HEAT SEALED CASE TO COVER protects against seepage and corrosion bonded unit gives extra strength THRU PARTITION CONSTRUCTION p...

Page 8: ...arged Inside the cell they re stacked alter nately negative positive negative Insulators or sep arators usually fiberglass or treated paper are placed between the plates to prevent contact Cranking cu...

Page 9: ...mpact Heat sealed bonded unit construction protects against seepage and corrosion Personal watercraft snowmobiles and ATVs make special demands and YUASA s YuMicron Battery meets them head on The high...

Page 10: ...VRLA batteries hold voltage longer and need less charging in standby or storage mode High Performance version provides greater cranking power with 12 extra plates per battery For top power less mainte...

Page 11: ...ive to positive negative to negative Unplug the charger or turn it off before you disconnect the leads that cuts down on the chance of sparks 6 Always wear eye protection protective gloves and protect...

Page 12: ...ase ensure you have the proper charging voltage Always refer to your service manual Selecting the right battery is an important decision You d be amazed how often the problem with a battery is that it...

Page 13: ...d sensor at the same time But the sensor s original equipment you say Doesn t matter Being OE doesn t mean it s OK in another man ufacturer s battery In fact OE sensor plugs vary consid erably in leng...

Page 14: ...a ture Once it s unsealed a battery should be activated charged and installed The plates of an unsealed uncharged battery begin to oxidize That makes it more difficult to charge later We talk more abo...

Page 15: ...al activity inside the bat tery would come to a standstill It s bad for a battery So is allowing a battery to remain discharged for a prolonged period Recharging becomes hard or impossible The good ne...

Page 16: ...x Number of Days From100 Charged to 100 Discharged Temperature Lead Antimony Lead Calcium Battery Battery 104 F 100 Days 300 Days 77 F 200 Days 600 Days 32 F 550 Days 950 Days 104 F 77 F 32 F 0 100 20...

Page 17: ...p for losses from normal starting and self discharge You re going to have to charge the battery more often Maybe every month or so depending on temperature Does the surface the vehicle s parked on or...

Page 18: ...2 Inspect battery terminals screws clamps and cables for problems breakage corrosion or loose connections Clean the terminals and clamps with a wire brush and coat terminals with no ox grease 3 Inspe...

Page 19: ...ng ball and calibrated float types or 2 a voltmeter or multimeter which gives DC voltage readings Which is best If you re choosing between two hydrometers opt for the calibrated float type It gives yo...

Page 20: ...remain in an open circuit condition for at least 1 2 hours LOADED TESTING There are two types of loaded tests for motorcycle batteries You ll need a voltmeter or multi meter Low load test Basically t...

Page 21: ...rates For most motorcycle and other small engine start ing batteries charge them at 1 10 of the rated ampere hour values in the Yuasa Applications Book see example on page 12 for ratings Battery volt...

Page 22: ...2 0v 11 9v 0 12 0v or less 11 9v or less 11 8v or less POINTS TO REMEMBER Fully charge battery when new and keep it fully charged Test charging batteries as necessary for overheating water and state o...

Page 23: ...arge Times Hours Using a Trickle 0 25 Amp Charger 75 13 15 18 23 24 25 50 25 30 35 45 48 50 25 38 45 53 68 71 75 0 50 60 70 90 95 100 Approximate Charge Times Hours Using a 1 Amp Taper Charger 75 6 7...

Page 24: ...use of 1 continuous dis charging or 2 low electrolyte levels Let s back up just a minute we said earlier that dis charge turns the lead plates into lead sulfate This lead sulfate is actually a crystal...

Page 25: ...case and buckle the plates which means the battery is permanently damaged A fully charged battery can be stored at sub freezing temperatures with no damage As the chart at right shows it takes 75 F to...

Page 26: ...rences in activating a sealed VRLA battery Be sure to follow the instructions in this section 2 While Yuasa sealed VRLA batteries dramatically reduce the need for maintenance they do need periodic cha...

Page 27: ...The positive plate still makes oxygen but instead of being forced out the vent tube it reacts with the charged active material to become water again That s gas recombinant technology That s the magic...

Page 28: ...acles Don t separate the individual cells Read electrolyte handling instruction and precautions on the label Activation and Installation Save this strip 5 SECTION Sealed VRLA Batteries To Activate a S...

Page 29: ...approximately 80 charged Place cap strip loosely over the filling holes as shown in drawing above Immediately charge your battery after the stand period to bring it to a full state of charge See Charg...

Page 30: ...30 minutes after end of charge Therefore to determine the state of charge and the health of the battery measure the open circuit voltage 1 hour after end of charge For a battery that has been in use...

Page 31: ...p Hour Capacity Rating of the battery Discharge Characteristics Starting the engine is a big part of the battery s job but not all Electrical accessories and safety systems lights and horn need a stab...

Page 32: ...ne charges Flattering but wrong Forgetting routine charging can mean a one way ticket to the battery graveyard Self discharge Self discharge Characteristics Relation between Storage Period months and...

Page 33: ...st and most convenient method for error proof charging and battery maintenance These batteries are a sealed VRLA construction which means NEVER REMOVE THE SEALING STRIP AFTER CHARGING IS COMPLETED If...

Page 34: ...o the sealed VRLA battery to make up the difference Overcharging can warp plates making future charging difficult or impossible Watch charging times carefully or ideally use a Yuasa Automatic Charger...

Page 35: ...to the table below Criteria Judgement 12 8v or higher Good 12 0 12 8v or lower Charge insufficient Recharge 12 0v or lower Unserviceable Replace Adjust voltage so that current will be at standard amp...

Page 36: ...ions are discharged positive ions are formed or at which other oxidiz ing reactions occur Antimonial Lead Alloy A commonly used alloy in battery castings The percentage of antimo ny varies from 1 2 t...

Page 37: ...a constant value For some types of batteries this may involve two rates called a starting and a finishing rate Constant Potential Charge or Constant Voltage Charge A charge that holds the voltage at...

Page 38: ...of a battery The prescribed voltage reached when the discharge is consid ered complete Finishing Rate The rate of charge in amperes to which charging current is reduced near the end of the charge for...

Page 39: ...r painted near tops of battery contain ers indicating maximum and minimum electrolyte levels Litharge A yellow red oxide of lead sometimes used in making active material Local Action A battery s loss...

Page 40: ...nductor that connects the plate group strap to the outside of the cell Pure Lead Pig Lead Rated Capacity Ampere hours of discharge that can be removed from a fully charged cell or battery at a specif...

Page 41: ...of no use Sulfated A plate or cell whose active materials contain an apprecia ble amount of lead sulfate Sulfation Formation of lead sulfate on a plate or cell as a result of dis charge self discharge...

Page 42: ...ressure for recombination of oxygen and hydrogen into water Watering Adding water to battery electrolyte to replace loss from elec trolysis and evaporation Watt A unit of electric power equal to a cur...

Page 43: ...Battery Accessory Lead and Fused Ring Connectors Simple quick connection Can be used with Yuasa s 1 5 Amp and 900 mA chargers for applications ranging from motorcycles automobiles and personal waterc...

Page 44: ...FORM NO YUA 069 Rev 4 04 PG 10 000 PRINTED IN U S A P O Box 14715 Reading PA 19612 4715 Telephone 1 866 431 4784 Fax 610 929 1295 yuasabatteries com TM...