Features: 1Suitable for MAKITA 18V Lithium Battery BL1830 BL1840 BL1850 BL1860 BL1830B BL1840B BL1850B BL1860B. 2Replace for Milwaukee's 18V lithium battery M18 which can be used on for Milwaukee 18V tools. 3Made of high quality ABS+PC material sturdy and durable has a long service life. 4The product is small in size and light in weight and the batteries can be easily interchanged. 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. 11x6.5x5cm / 4.3x2.6x2.0inWeight: Approx. 160g / 5.6ozFunction MT20ML black converter suitable for MAKITA 18V lithium battery BL1830 BL1840 BL1850 BL1860 BL1830B BL1840B BL1850B BL1860B+MT20ML=Replace for Milwaukee's 18V lithium battery M18 which can be used on for Milwaukee18V toolsThe batteries are interchangeable convert for MAKITA 18V lithium battery to for Milwaukee 18V lithium battery 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. Can not directly charge on the adapter if you need to charge you need a dedicated battery charger.