Appendix M Batteries

Practically every modern camera relies on some form of battery to power its auto exposure or focus systems, film wind-on, flash, or digital capture and processing systems. When a camera fails to operate, or functions in a sluggish way, the cause can almost always be pinned down to exhausted battery condition or poor contacts. You should always keep your batteries well charged and where ever possible always carry a backup set.

In general, remember that batteries are affected by temperature. Low temperatures slow down their chemical reaction, resulting in erratic or sluggish camera operation. Make sure batteries are inserted with the polarity (+ or –) marked on their contacts matching the terminals in your equipment.

Safety points

Keep batteries away from young children – some tablet types look like sweets. Never allow anyone to try opening a battery or throw it on a fire. Do not attempt to recharge batteries other than those marked possible to do so, recharge with the recommended unit. It is good practice to remove the batteries from photographic equipment you will not be using for some months. Changing non-rechargeable batteries once a year is also advisable – especially before going to a location where the correct replacements might be difficult to buy.