Electro-Voice RE3-ACC-BC2 Two-Slot Battery Charger

The BC2 charges rechargeable NiMH cells while they stay installed in an RE3 handheld or bodypack transmitter, two units at a time. A full charge of four 2000mAh cells takes about three hours, and status LEDs make the state obvious at a glance: solid green is charged and standing by, flashing green is charging, flashing red flags a fault.

It runs off universal 100-240V AC input, so it travels with a system rather than being tied to one region's power, and it takes up a small footprint next to the rest of an RE3 rack.