User manual NITECORE EA1

[. . . ] Insert one AA or other compatible battery with the positive pole of the battery pointing toward the head. Replace the tail cap and fasten tightly. Dimensions Length: 81mm Head Diameter: 25. 4mm Tail Diameter: 19mm Weight: 47. 5g (without battery) Accessories Quality holster, lanyard, spare O-ring Battery Options SIZE Primary AA battery Rechargeable AA battery Primary AA Lithium battery Primary LiFePO4 battery Rechargeable Li-ion battery Nominal voltage Compatible Y (Recommended) Y (Recommended) Y (Recommended) Y Y AA AA L91 14500 14500 1. 5V 1. 2V 1. 5V 3. 2V 3. 7V WARNING Always ensure battery is inserted with the positive (+) end pointing toward the flashlight head. If incorrectly installed, the flashlight will not work. Note: When EA1 is driven by primary LiFePO4 battery or rechargeable Li-ion battery, it can result in one of the below situations: 1. [. . . ] After 3 minutes working in Turbo mode, the flashlight will automatically restore to the previously selected brightness level to safeguard against overheating. While activating Turbo mode, the brightness level increases about 80 lumens. Due to adaptability of human eyes, this brightness increase may not be apparent within close range observation. In real-world usage, mode can throw to a longer range. Power Indication Entering Strobe and SOS Mode With the light switched on, and when the battery power has been consumed by about 50%, the power indicator light (on the control panel) will flash once every 6 seconds as a reminder of battery capacity. When the battery power is almost depleted, the power indicator light will flash 3 times every 3 seconds to indicate low battery capacity. When entering lockout mode, the power indicator will automatically detect and notify you of battery voltage (accurate to ±0. 1V) with a series of flashes. For example, if the battery voltage is 4. 2V, the indicator will flash 4 times, followed by a one second pause and then another 2 flashes. With the light switched off, press the “ON/OFF” button for more than 1 second to enter Strobe mode. In strobe mode, press any button (ON/OFF or MODE) to exit strobe and switch the light off. With the light switched off, press the “MODE” button for more than 1 second to enter SOS mode. In SOS mode, press any button (ON/OFF or MODE) to switch off the light and quit SOS mode. Battery replacement If battery level is low, the red power indicator light will flash three times every 3 seconds. If the power level is critically low, the light will become very dim and unresponsive to brightness adjustment. A replacement battery is required at this time. Red Light Mode With the light switched off, press the “MODE” button to enter red light mode. In this mode, the power indicator will continuously emit red light (0. 2 lumens). Press the “MODE” button once again to quit the red light mode. Maintenance Every 6 months, the threads should be wiped with a clean cloth followed by a thin coating of silicon-based lubricant. Lockout Mode Warranty Service With the light switched on, press the ON/OFF button for over 1 second to enter lockout mode. In lockout mode, EA1 power source system will shut down most of the circuit components to reduce its power consumption. The MCU only consumes small amount of power to maintain its work. [. . . ] The warranty is nullified in all of the following situations: 1. The product(s) is/are broken down, reconstructed and/or modified by unauthorized parties. The product(s) is/are damaged through improper use. [. . . ]