2007-2009 Suzuki LTZ90 factory service manual, Page 216Get this manual
ELECTRICAL SYSTEM SERVICING Visually inspect the surface of the battery containerIf any signs of cracking or electrolyte
remove the caps on the battery top while rechargingRecharging time: 0.5 for to 10 hours or for 30 minutes (V) 14 13 (at 40
C) Be careful not to permit the charging current to exceed at any time 12 11 10 100 75 50 25 () Battety charged condition
After recharging, wait for 30 minutes and more and check the battery voltage with multi-circuit tester If the battery voltage
is the 12.5 and less, recharge the battery again If battery voltage is still 12.5 and less, after recharging, replace the
battery with new one When the vehicle is not used for long period, check the battery every month to prevent the battery discharge.