GBM3X3 is a hot-swappable spare battery designed for the Getac A140. Its Li-ion pack supplies 10.8 V and has 3,220 mAh typical capacity, with a minimum capacity of 3,120 mAh. Carrying a spare supports A140 deployments that require a replacement battery ready for use during mobile work. A physical battery indicator uses green LEDs to show the relative percentage of remaining charge. No illuminated green LEDs indicates that the battery pack is fully discharged. The battery measures 144 x 72.4 x 13.2 mm and weighs 200 g, supporting compact storage alongside the A140. Use this A140-compatible battery where mobile personnel need to check spare-battery charge status before work and retain a replacement power source. The hot-swappable design supports battery changes during deployment. Order code GBM3X3 denotes the A140 hot-swappable spare battery with Li-ion chemistry and a physical charge indicator.