Canon PowerShot A40 PowerShot A40/A30 Camera User Guide - Page 24

¡Never mix unused and par tially used batteries. Always load four fresh (or fully recharged) batteries at the same time. ¡Never mix batteries of different types or from different manufacturers. All four batteries should be identical. ¡Before inserting the batteries, wipe the batter y terminals well with a dry cloth. Oil from one's skin or other dir t may cause a considerable reduction in the n umber of recordable images or reduced usage time. ¡Battery performance deteriorates at low temperatures (especially with alkaline batter ies). If you are using the camera in cold areas and batter ies 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 batter ies 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 camer a for a long time, remove the batteries from the camera and store them in a saf e place. Batteries may leak and damage the camera if left installed during prolonged periods of non-use. WARNING Never use damaged batter ies or batteries whose outer seal is completely or par tially missing or peeled off, as there is risk that such batter ies may leak, overheat, or burst. Always check the seals on store-bought batter ies 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. Batteries with all or part of the seal (electrical insulation sheath) peeled off. 20