Lotus Evora 2011 Owner's Handbook Manual page 148

quent conditions of car use may not allow for sufficient alternator
charging of the battery to achieve a fully charged state. The bat-
tery should be trickle charged by external means until 12.8 volts
is recorded, which process may take 24 hours or longer. Putting
the battery into service at a lower state of charge will reduce the
time period for which the car can be parked without subsequent
starting concerns. A battery left in a fully discharged state for a
prolonged period, may not be recoverable to its original condi-
tion. A discharged battery is also vulnerable to freezing of the
electrolyte, which could result in a damaged casing.
WARNING
• Hydrogen gas generated by the battery could cause an explo
sion, resulting in severe personal injuries. Charge battery
in a well ventilated area.
• Never charge a frozen battery. It may explode because of gas
trapped in the ice. Allow a frozen battery to thaw out first.
• If you get electrolyte, which is an acid, in your eyes or on your
skin, immediately rinse with cold water for several minutes
and call a doctor.
Unless an automatic battery management conditioner is to
be used, the battery should be removed from the car for re
charging, to a well ventilated area to avoid a build up of fumes
in the luggage compartment and to prevent damage to the car's
electrical system. Observe the safety precautions listed above
when removing the battery and take care to avoid sharp knocks
or shocks, keeping the battery as upright as possible. Beware of
the considerable weight of a battery, and take necessary precau
tions against personal injury.
The recommended bench charge rate is 4 amps. When the
battery is fully charged (12.8 volts), allow the battery to stand
for an hour before refitting to the car and reconnecting the
leads - see above.
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