If you would like your batteries to last longer, this battery could be the solution for you. The great thing about this style of battery is that you can mount another battery on the back of it, it's a bit like piggybacking batteries. When the first level light begins flashing, promptly replace the back battery, and no power outages will occur. It is a great battery to have when you have long productions where you need to have the light or camera powering continuously and a subject to having no mains power. 

Product Features

· Unique V-mount battery overlay patent design. Battery back can overlay a BP-F100U or any other brand V-mount battery.
· Uninterrupted batter y discharge management design, Implement equipment power supply for a long time.
· High rate discharge design,Capacity100Wh can adapt to high power video equipment and high power LED lights.
· 5-level LED power indicator. The first level light as the back battery replacement light at the same time.
· Working temperature: -20°C~+55°C
· Quick charge and no memory effect
· Protection circuit design keeps the battery from the damages caused by over-heat, excessive current and extended charge / discharge.
· With D-tap and circular hole socket, both can be as charging or discharging port. D-Tap as the light power output port, could power supply for camera and LED light at the same time.
· With USB output port which widely used for personal electronic products.
· D-Tap and USB output socket is equipped with a rubber lid.