1988-1994 Honda TRX300 Fourtrax, 1988, 1990-1994 TRX300FW Fourtrax Service Manual, Page 325Get this manual
BATTERYCHARGING SYSTEM NOTE Be sure the area around the charger is well ventilated, clear of flammable materials, and free from heat, humidity, water and dustClean the battery terminals and position the battery as far away from the charger as the leads will permitDo not place batteries below the charger-gases from the battery may corrode and damage the chargerDo not place batteries on top of the chargerBe sure the air vents are not blocked
BATTERY AMP HRSELECTOR SWITCH