S-8D58 is the replacement battery for Panasonic VW-VBD58, compatible with Panasonic 4K Camcorder AG-DVX200 and P2HD Camcorder AJ-PX270/285. With 7.2V nominal voltage, the S-8D58 has 43Wh / 6000mAh capacity,and can run approx 2 hours on AJ-PX270 series camcorders when LCD monitor is on. A 5.5/2.1mm pole-tap DC output socket is equipped on the S-8D58 battery, for DC 7.2V (Nominate) connection. You can connect on-camera LED light, monitor or wireless transmitter on the pole-tap socket, and get power simultaneously with camera. The Max power from the pole-tap is 30W, 4A. The Pole-tap socket can also be used as charging input, by SWIT portable charger S-3010D. Its rather a fantastic function to have a USB socket on the DV battery! Connect your smart phone or pad to the USB socket, press the Check button, and then the S-8D58 starts to output 5V/1A power to charge your devices! The S-8D58 battery has the 4-level LED power indicators to check the battery remaining capacity. You can get a quick view of capacity before using. The S-8D58 can be charged on Panasonic original charger DE-A88, and SWIT also provides the Dual channel charger S-3602D for S-8D58, will take about 4 hours to charge fromempty to 100%. And you can also use SWIT S-3010D PortablePole-tap Charger for S-8D58. It will take 7 hours to fully charge.