Jamil Idriss charges 50 naira ($0.33) to recharge phone batteries using rows of three-pin sockets nailed to a plank of wood and plugged into a diesel generator in the Obalende District of Lagos May 20, 2010. Nigeria is Africa's biggest energy producer but corruption and mismanagement mean most of the country is hampered by constant power outages. Idriss' clients, many of them unable to afford their own generators, cannot charge their mobile phones at home. Picture taken May 20, 2010. To match Feature FRONTIERS/NIGERIA REUTERS/Akintunde Akinleye (NIGERIA - Tags: BUSINESS SOCIETY)