WT | Studio WT Studio: Varta Microbattery – Energy Solutions for Wearables By Ramona Socher - 19. May 2021 Energy supply is the bottleneck in many wearable solutions. Luckily, this bottleneck is getting wider and wider thanks to innovative solutions by VARTA Microbattery. To access this page, watch the live streams and videos on-demand, please register free of charge to the WT | Wearable Technologies COMMUNITY.