The L 2015 charging station features two charging bays for recharging two BA 2015 rechargeable battery packs. The L2015 can charge pair of BA2015s directly or via the external contacts on Sennheisers evolution wireless G3, ew300/500 G2, 2000 Series and System 2015 bodypack units. The LA2 charging adapter (sold separately) can be used to charge G3 and 2000 series handheld transmitters. Two power supplies (sold separately) are available for use with the L 2015. A single station can be powered via the NT1-1 power supply. Up to three L 2015 stations can be linked together and powered via the NT3-1 power supply, creating 6-bay charging station.