E T X S E R I E S L I T H I U M B A T T E R I E S
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The vehicle electrical system may have a short circuit or current drain: Measure the current
out of the battery when the vehicle and all vehicle accessories are shutoff. The current
reading should be near zero (less than 3mA). If not, the vehicle has an electrical problem
that needs to be fixed.
The terminals on the battery are not tightly connected: Tighten the terminal connections.
A cell may be defective: there is no fix for this except replacing the battery.
The battery may have reached the end of its life: Replace the battery.
Problem
The vehicle does not want to start in cold weather.
Possible Causes and Solutions
Lithium batteries internal resistance increases as the temperature decreases, so the battery
will put out fewer amps in cold weather (less than 32 deg F). You may need a larger Ah /
cranking amp battery.
Problem
How do I know if my battery charger is working?
Possible Causes and Solutions
The newer fully automatic chargers need to be hooked up to a battery before they will
output any voltage. This is primarily a safety feature that prevents spark when hooked up,
and protects the charger against reverse polarity hookup. Some chargers need to ‘see’ as
much as 9.5 volts before they recognize that they are attached to a battery. Once the charger
is hooked up, it’s output voltage should increase, up to 14.6 volts. If your charger does not
do this, you may want to contact the charger manufacturer for further troubleshooting tips.
Problem
How do I know if my vehicle charging system is working?
Possible Causes and Solutions
Connect a voltmeter to the battery. Measure the voltage before the vehicle is started (should
be approximately 13- 13.6V. Start the vehicle and run the engine at 3000 – 4000 RPM for
one minute. The voltage should increase after the vehicle is started, to approximately 13.9 -
14.7 volts. If your charging system does not output a voltage higher than the battery (when
the vehicle is stopped), there may be a problem with the charging system.
Problem
The battery gets hot when discharging or charging.
Possible Causes and Solutions
Lithium batteries can “heat up” when subjected to high amperage discharging and charging.
If your battery feels hot during use, stop using it (charging or dis-charging it) and let it cool
down. If this continues it is an indication of a serious problem and the battery needs to be
replaced.
