S-8160s is a lightweight 190Wh V-mount battery, it has a 4-level LED indicator to give the user a view of remaining power before mounting to camera, and a connecting shoe for wireless receiver S-7002. S-3802s is a portable 2-channel sequential charger for Sony and SWIT V-Mount batteries, which can automatically recognize the type of battery being charged (Li-ion, Ni-MH and Ni-Cd). S-3802S also can be used as an AC adaptor through its 4-pin XLR DC output.