Features: 1Replacing for MAKITA 18V battery BL1830 BL1840 BL1850 BL1860 BL1830B BL1840B. 2The batteries are interchangeable and can be used on for MAKITA 18V lithium battery tools after conversion. 3Made of highquality ABS+PC material corrosion resistance safe and durable long service life. 4Small size and light weight it can easily realize the conversion between different batteries. 5There is no conversion loss while such converter keeps exquisite craftsmanship light and practical. Specification: Item Type: Battery Adapter Material: ABS+PCColor: BlackProduct Size: Approx. 11x7x3cm / 4.3x2.8x1.2inWeight: Approx. 135g / 4.8ozFunction BS18MT black converter suitable for BOSCH 18V lithium battery BAT609 BAT610+BS18MT adapter = replace for MAKITA 18V battery BL1830 BL1840 BL1850 BL1860 BL1830B BL1840B can be used on forMAKITA 18V toolsThe batteries are interchangeable and can be used on forMAKITA 18V lithium battery tools after conversion Package List: 1 x Battery Adapter1 x Instruction Manual Note: 1. Please allow 12in error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.3. It is not possible to directly charge the battery directly on the adapter. If you need to charge the battery you need a special battery charger