All Garmin nuvi series does not come with a wall charger. If you are looking for a solution here's one.

1. Turn on your nuvi
2. Press the "battery" icon for about 5 to 8 seconds
3. A blue screen with data will appear
4. Plug your USB and you have sucessfully managed to charge it without using a wall charger
5. Switch off your unit and leave it to fully charge.
   

Using your USB cabel to charge your nuvi