The BT-300S features a testing method that does not require the battery size to be entered into the unit. Simply choose between automotive/truck battery or small automotive type batteries for testing. Eliminates tester input errors and allows the testing of batteries of unknown size. Unit can test batteries as low as 5% state of charge and still give accurate readings. LED Bar Graph immediately displays battery condition upon pressing the TEST button.

• Capacity/Volts Display: Alpha Numeric Bar Graph: 10 color-coded LEDs