It will not charge the starter battery. - Watts Onan Portable Generator - 4000 , Model# 5500

Refer to the instructions that came with charger. If you threw them away you have a problem You can go on line and download instructions.
Low Charge Alert (LCA)
On the front of the unit there is a Low Charge Alert port. There is a red plug in this port. With the plug
removed, when the battery level drops to LO, an alarm will sound to remind the user to recharge the
Jump-Starter.
The alarm can be turned off one of three ways:
•
Placing the pin back into the Low Charge Alert port
•
Recharging the battery immediately to bring it to the capacity of 10% or more
•
Pressing the battery indicator display button. If the alarm is turned off by pressing the battery
display button, the alarm will sound automatically again in approximately 1 hour.
The alarm will only be turned off permanently if the battery is in a fully charged state, or the pin is
inserted in the Low Charge Alert port. There is a storage port on the back of the Jump-Starter for the
LCA plug. When the plug is removed from the LCA port, it should be installed in the storage port on the
back of the Jump-Starter.
Charging Jump-Starter Battery
All rechargeable batteries gradually discharge when left idle, and you need to recharge them
periodically to maintain maximum battery capacity. The AC charger plug within the Jump-Starter is
designed to charge using a 110/120-volt outlet.
•
Fully charge unit to the recommended maximum and initial charge time of 24 hours. Thereafter, an
AC typical charge time is 8 to 12 hours.
•
Recharge the unit fully after each use. This will prolong the life of the battery because frequent
discharges between recharges will reduce battery life.
•
Make sure all functions of the Jump-Starter are turned off during recharging

check that the charge wire was properly connected as some use the positive wire on the starter as the charge circuit back to the battery

First make sure your battery is fully charged. The charger on lawn tractors will not keep the battery fully charged as they just produce a light charge. Check battery before the starter but if battery is fully charged then it's possible the starter could be bad.

MAKE SURE BATTERY IS CHARGED IF IS THEN JUMP LAWN MOWER AT STARTER IF STARTS BAD BATTERY ARE STARTER RELAY COST 60.00 I STILL THINK YOUR BATTERY IS BAD OR DEAD NOT ENOUGH CHARGE IN IT

Check that you're getting charging current to battery. Voltage at battery terminals should read about 14.5 volts (well above 12 volts in any case). If not, a bad alternator may be failing to provide your battery with a full charge. If charging is good, and battery holds its charge, other possibilities are bad wiring connections to starter solenoid and/or starter motor, or bad ignition switch assembly.

If the problem began when (or soon after) installing the new starter, start checking there. Ensure that all cables to the starter are tight. As a second possibility, if the new starter was actually a rebuilt replacement, the solenoid could be faulty. (I went through three rebuilt starters on my son's truck until we got one that worked properly.)

Do the proper testing of the
battery,starter and charging system

Not the alternator. If the battery has a sufficient charge, the start should turn regardless of the condition of the alternator. Try using a battery charger to be sure battery if at 100%.
Are your battery terminals clean, no corrosion and attached tight?
If starter still will not turn, problem could be wiring or bad starter solenoid.

If the battery is fully charge, yes, the starter assembly is worn out, replace starter assembly.

have battery and charging system checked. you may have a bad starter.hope this helps.