For Magellan Maestro 3200 / 3210 / 3225 / 3250 / 4200 / 4210 / 4220 / 4250 / 4350 / 4370 / 5310 GPS Portable Travel USB 12V Plug-in Car Charger + Home Wall AC Charger Combo Bundle Package Gives you the flexibility to charge your navigation unit at home or on vacation Lightweight unit restores power to your navigation system Safely charges the battery on your GPS while driving IC Chip recognizes a full battery & automatically switches to saver modeing and overheating)