Honda CRF230F 2004 Owner's Manual page 123

Battery
5. Charge the battery (see following section),
unless you have been riding regularly.
6. Store your battery in an easy-to-reach
location off the floor, in an area protected
from freezing temperatures and direct
sunlight.
7. Clean the battery box after removing the
battery for storage. Dry the battery box and,
if paint is missing, re-paint the area.
8. Slow charge the battery (see following
section) once every 30 days.
114
Servicing Your Honda
Battery Charging
Refer to Saf ety Precautions
(1)
(1) ''trickle'' charger
Be sure to read the information that came with
your battery charger and follow the instructions
on the battery. Improper charging may damage
the battery.
on page 43 .