Submitted by jamesb2147 on Sun, 2011/12/11 - 22:22.
Traveler's checks are probably not as important a topic today as they once were but it's worth mentioning they're not generally accepted. I would advise phoning ahead to any place you plan on visiting to inquire about their policy on traveler's checks.
Of course if you're in a bind the Banco America Central (BAC; www.credomatic.com/nic; Plaza España) or the American Express office (266 4050; Viajes Atlántida office; 8:30am-5pm Mon-Fri, 8:30am-noon Sat) in Managua will exchange them.
Source: Lonely Planet on Managua