1988-1994 Honda TRX300 Fourtrax, 1988, 1990-1994 TRX300FW Fourtrax Service Manual, Page 321Get this manual
BATTERYCHARGING SYSTEM SPECIFICA TIONS Battery Voltage at 20C (68F) Alternator Capacity Charging coil resistance Regulator rectifier Type Regulated voltageampere Capacity Fully charged Needs charging 12 V-12 AH 13.0-13.2 Vat 20C (68F) Below 12 .3 at 20C (68F) 0.22 kW5,000 rpm 0.09-0.11
Three-phasefull-wave rectification 13.5-15.5 V0-5 at 5,000 rpm