Canon 18x50 IS Image Stabilized Binoculars - Manual (Page 4)

ENG-3
Battery Care
(1) Never attempt to disassemble batteries. Never recharge batteries
except Ni-Cd batteries. Do not leave batteries in a hot place or throw
them into a fire. Do not short circuit the contacts. Doing any of the
above is highly dangerous.
(2) You should never mix different types of batteries. When changing
exhausted batteries, replace them all at once.
(3) Although lithium batteries work well in low temperature, their
performance will drop slightly in temperatures below 0 degrees C. In
cold locations, keep a spare set of batteries in a warm pocket and
alternate them with the batteries in use.
(4) When the battery power is low, the lamp will not light even when you
press the Image Stabilizer button. Replace both batteries in such a
case.
(5) If the lamp lights but the Image Stabilizer does not operate properly, it
means the battery power is low. Replace both batteries in such a
case.
(6) In cold temperatures, using size-AA lithium batteries is recommended.
All Weather : Water resistant binoculars for use in heavy rain.
All Canon Binoculars are composed only of “Environment Friendly Lead-Free Optical
Glass”. The design is derived from Canon’s corporate policy to care about our
environment.