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an open flame and can damage the battery. Thereby acid
maybe spilled which causes serve chemical burns.
While charging, explosive and flammable substances such as
fuel or solvents should not be kept near the battery trainer.
Always wear safety goggles when operating the battery trainer
in the vicinity of lead-acid batteries and avoid skin and cloth
contact with battery acid. Wear safety gloves and protective
clothing.
Do not smoke in the vicinity of lead-acid batteries. Avoid open
flames.
Ensure sufficient ventilation! Discharged lead-acid batteries
freeze at extremely low temperatures! Never charge a frozen
lead-acid battery!
The efficiency of a lead-acid battery decreases with dropping
temperatures. A fully charged battery has a capacity of 40% at
an ambient temperature of -18 °C. Most batteries will be
damaged by over-charging.
All batteries lose their charge after some time if temperature
increases. Self-discharging of maintenance-free batteries is
lower than discharging of common lead-acid batteries. Prefer-
ably store batteries in cool temperatures to avoid self-
discharging to a minimum.
A battery that has been stored uncharged for long period of
time will "sulphurize" very easily and loses its capacity be-
cause sulphur will deposit on the plates. A fully charged and
fault-free battery has a no-load voltage of 12.7 V or more. A
defective or discharged battery has a no-load voltage of 10.5 V
or less.
Be sure the area around the battery is well ventilated before
and during the charging process. If this is not possible, it might
be necessary to take out the battery from the vehicle for
training. Always turn off all accessories in the vehicle and
remove the ground cable from the frame.
Safety Notes
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