NEEWER 7800mAh Rechargeable Li-ion Battery for Q300, Vision 4, ML300

Description Compatibility: Suitable for providing extra power for Neewer Q300, Vision 4, ML300 studio flash. Note: The studio flash is not included 7800mAh Li-ion Battery: High capacity/rechargeable Li-ion battery with premium cell Portable Design: Easy to carry when out or travel; No need to worry about the shortage of power when shooting. A fully exhausted battery normally reaches full power after 5 hours' charging Two Ways to Charge: 1. Can be connected to charger for charging; 2. Link with a vehicle's 10.8V outlet to charge is also available Specification Power Source: Li-ion battery Capacity: 10.8V 7800mAh Weight: 18.2 ounces/516 grams Size: 4 x 2.9 x 2.7 inches/10.2 x 7.4 x 7 centimeters Maintenance of the battery Charging times and numbers of flashes may vary according to the condition of the battery. Charge the battery fully before using the unit for the first time. After you finished using the studio flash, or before you store the studio flash, switch off the unit. I