Trimble 38403 Charger and Dual USB Car Charger - Replacement Trimble R8 GPS Charger Replacement Trimble 38403 Charger Universal Charger features adjustable slider to charge different lithium-ion batteries (3.6V/3.7V/7.2V/7.4V) & AA/AAA batteries. Charge your battery by plugging the charger into a USB port. Charge your battery while driving with the Dual USB Car Charger Universal Charger features standard Micro USB Input 5V/1A, LCD displays shows battery capacity, Overcharge prevention circuitry, Upstart Battery Brand, Lifetime Warranty On Sale for a Limited Time!