Batteries & Grips
Rechargeable batteries are essential for the low running costs of digital cameras. The sensors in digital cameras are very power-hungry devices along with the flashes, LCD screens and powered zooms. This all means that if you keep using non-rechargeable batteries then they will cost far more than rechargeable batteries in the long run but also that you are best advised to carry spare rechargeable batteries wherever you go so that you can continue capturing your memories digitally for all time.