No Standalone lithium batteries are sold with the product
High: 180 Lumens; runs 4.5 hours - low: 35 Lumens; runs 21 hours - Emergency flash - flashes on high - 180 Lumens
Non-replaceable 950 mAh lithium polymer cell; sealed inside unit for service free operation
Charge time is approximately 3.5 hours depending on USB charge source. The red LED lights in the on/off button to show the battery is charging. Green indicates the battery is charged
Impact-resistant polycarbonate construction IPX4 weather-resistant; 2M impact resistance tested
2.7 ( 6.85 cm); 1.6 oz. ( 45.4G ) With headband; 1.7 oz. ( 48.2G ) With hat clip