This RX10 external dual-bay main battery charger charges up to two batteries simultaneously and supports GBM4XB and GBM8X1 batteries. Its two-bay design keeps supported batteries together while charging, providing a consolidated charging and storage location where available space and power sockets are limited. The charger accepts 100-240 V AC input power and provides 13.05 V DC output at up to 2.4 A. It measures 180 mm wide by 160 mm deep by 72.5 mm high and weighs 1.2 kg, giving buyers defined power and physical specifications for placement with RX10 battery equipment. Use the charger to maintain two supported RX10 main batteries in a shared charging location, particularly where separate chargers would consume additional outlets or storage space. The GCMCUC ordering code identifies this external dual-bay charger configuration for GBM4XB and GBM8X1 battery support.