The PST-198-1 is an OEM charger made by Tecumseh for
electric lawn mowers. It has the following attributes:
PST-198-1
ITEM
UNIT
SPECIFICATION
REMARK
INPUT
Rating Input Voltage
V ac
120Vac
50/60Hz
Max. input power
Watts
72 W
OUTPUT
Rating output voltage
V dc
30V
Output voltage range
V dc
20VDC ~ 30VDC
Depends on the charge state of
the battery
Suitable with Battery type
24V 1~50 Ah VRLA
Batteries
Charging
current typical
Amps
1.3A
Typical charging time
hour
12 hours for a 15AH
battery
Battery detect
voltage
Charger does not need to
detect a battery, it will start charging immediately
Charge finish condition
V>29V and I<0.5A,
the green light turns on and float voltage stage is started
Float
Charge
Float charge voltage is
27.9 volts
LED color
Red: charging
Green:
finish/idle
Red/Green flashing. The
battery is accepting between 300 and 400 mA
Red blinking. The charger
thinks a battery is connected which is taking little current. Leave on the
battery for up to a week to see if the battery can be revived.