SMART FORTWO CABRIO Operating Instructions Manual page 257

Tips on battery care
Your car's battery requires no mainte
nance in normal vehicle operation
(DIN 43539/T2).
However, have the battery's charge
status and acid level checked at the
start of the cold season by a qualified
specialist workshop, e.g. a smart cen
ter.
The battery stoppers on the top must be
opened to check the acid level. Acid
must come up to MAX mark.
If the car is used almost exclusively for
short trips, recharge the battery ap
proximately every three months. This
will preserve your vehicle's startability
and prolong the battery's operating
life.
Disconnect the car's battery for ex
tended periods of non use and re
charge approximately every six months.
If the car is left for extended periods of
time (three to four weeks) with the bat
tery still connected, it must be re
charged.
Battery
Communications breakdown 255