Schumacher TB3 Manual Del Usuario página 9

7. TROUBLESHOOTING
You charged the battery, but the vehicle will not run or only runs
for a short period of time.
1. The charger may not have been on. Make sure the charger is
plugged into a live, working outlet, and that the charger is turned
on (if applicable). Check the charger or vehicle's owner's manual
to determine how to tell if the charger is charging properly.
2. Make sure the battery is FULLY charged. Refer to the
charger or vehicle's owner's manual to determine if the
battery is fully charged.
3. Check the inline fuse in the battery wiring harness. If it is
blown, replace it with a fuse of the same type and rating.
Be sure to correct the cause of the blown fuse before
reconnecting the battery.
4. The battery may not be connected properly. Make sure the
connector on the battery is the correct style that goes with the
connector on the charger and the vehicle.
5. Check the connectors for corrosion and clean, if necessary.
Make sure to check all three connectors: on the battery, the
charger and the vehicle.
6. Check the connectors for a tight fit. If the connection from
the charger to the battery or from the battery to the vehicle is
worn or loose, you will not get the desired results.
7. The battery may be sulfated. When a battery is left in a
discharged state (even slightly), it will begin to sulfate.
Sulfation will cause the battery to slowly lose its capacity and
eventually become useless. Have the battery checked.
8. The battery may be reaching the end of its useful life. All
batteries will eventually become too old to work properly. How
long that takes depends on many things, including discharge
levels, charge rates, ambient temperature, usage, etc. If you
suspect the battery may be reaching this point, have it checked.
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