Yamaha FZ09E Service Manual

• No charging is necessary when the open-cir-c ui t voltage eq uals or exceeds 12.8 V.b. Check the charge of the battery, as shown inthe charts and the fo ll owing example.ExampleOpen-circuit voltage = 12.0 VCharging time =6.5 hou rsCh a rg e of the battery = 20-30 o/oA13.012 .512.0 - - - - - - - - -11.5D 5 6.5 10A. Open-circuit voltage (V)B. Charging time (hours)BC. Rel ationship between the open-circuit volt·age and the charging time at 20 °C (68 °F)0. These values vary with the temperature, thecondition of the battery plates, and the elec-trolyte level.A141312II10- I100 75II'I •-.....I II 'I I' II II I• I50 30 2520 0A. Open-circuit voltage (V)cB. Charging condition of the battery (o/o)C. Ambient temperature 20 •c (68 ° F)B••••••••••••••••••••••••••••••••5. Charge:• Battery(refer to the appropriate cha rgi ng method)EWAl$300AwARNINGDo not quick charge a battery.NOTICE ~~~~~~~~~~~~~~• Do not use a high -rate battery chargersince it forces a high -amperage currentinto the battery quickly and can cause bat-ELECTRICAL COMPONENTStery overheating and battery plate damage.• If it is impossible to regulate the chargingcurrent on the battery charger, be carefulnot to overcharge the battery.•When charging a battery, be sure to removeit from the vehicle. (If charging has to bedone with the battery mounted on the vehi·cle, disconnect the negative battery leadfrom the battery terminal.)• To reduce the chance of sparks, do notplug in the battery charger until the batterycharger leads are connected to the battery.• Before removing the battery charger leadclips from the battery terminals, be sure toturn off the battery charger.• Make sure the battery charger lead clips areIn full contact with the battery terminal andthat they are not shorted . A corroded bat -tery charger lead clip may generate heat inthe contact area and a weak clip spring maycause sparks .• If the battery becomes hot to the touch atany time during the charging process , dis-connect the battery charger and let the bat-tery cool before reconnecting it. Hotbatteries can explode!• As shown in the following illustration, theopen-circuit voltage of a VRLA (Valve Reg-ulated Lead Acid) battery stabilizes about30 min utes after charging has been com-pleted. Therefore, wait 30 minutes aftercharging is completed before measu ringthe open-circuit voltage.A C" ~- · D'18171615141312II10 o 10 20 ~ 40 ~ ro B4EA. Open-circuit voltage (V)B. Time (minutes)C. ChargingO. Ambi en t t em perature 20 •c (68 °F)E. Check the open-circuit voltage.TTYTTTYYTTTYTTTYYTTTYTTTYTTTYYTTCharging method using a variable- curre nt(voltage) chargera. Measure the open-circuit voltage pri or to8-95