Electricity
Electric current is 220-240-volt AC 50 Hz. Power sockets are usually of the three-square-pin variety as used in the UK, although some older buildings have two-round-pin sockets. Bring a universal adaptor with you.
Some lodges do not have electricity 24 hours a day. Generators supply the electricity and often the sleeping rooms have very few electrical outlets. You should also bring a device that allows you to plug in more than one item to one outlet to allow you to charge multiple batteries and a computer at the same time.
Some vehicles have outlets for charging batteries during your game drives, but some do not. Ask your safari driver/guide.