Canon POWERSHOT S2 IS User Manual page 19

• While itispossible touse A A-size nickel-cadmium batteries, performance is
unreliable and t heir use i snot recommended.
•
Never mix new batteries together with batteries that have been used in
other devices. The partially used batteries may leak.
• Be careful to load the batteries with their positive (+) and negative (-)
ends in the right direction.
• Never mix batteries of different types or from different manufacturers.
All four batteries should be identical.
• Before inserting the batteries, wipe the battery terminals well with a dry cloth.
Oil from one's skin or other dirt may cause a considerable reduction in the
number of recordable images or reduce usage time.
• Battery performance deteriorates at low temperatures (especially with
alkaline batteries). If you are using the camera in cold areas and batteries
are running down faster than they should, you may be able to restore
performance by placing batteries in an inner pocket to warm them up prior to
use. But be careful that you don't put the batteries into a pocket together with
a metal key chain or other metallic objects, as these objects may cause
batteries to short-circuit.
• If you do not plan to use the camera for a long time, remove the batteries
from the camera and store them in a safe place. Batteries may leak and
damage the camera if left installed during prolonged periods of non-use.
/_Warning
Never use damaged batteries or batteries whose outer seal is
completely or partially missing or peeled off, as there is risk that
such batteries may leak, overheat, or burst. Always check the
seals on store-bought batteries before loading them, as some
batteries may come with defective seals. Do not use batteries
with defective seals.
Never use batteries that look like this.
N Batteries withall or part oftheseal (electrical insulation sheath)peeledoff.
The positive electrode (plus terminal) is fiat,
The negative terminal is correctly formed (protruding from the metal base), but
the seal does not extend up over the edge of the metal base.