Converter Top: Perfectly compatible with most BOSCH 18V Garden PBA series green tools, except PSM 18 LI and ALB18 LI. The bottom of the converter is suitable for Makita battery models: BL1815, BL1815B, BL1820, BL1820B, BL1830, BL1830B, BL1840, BL1840B, BL1850, BL1850B, BL1860, BL1860B, BL1845, BL1890, BL1890B, 18V lithium batteries. Adapter for Makita 18V BL series lithium battery for Bosch CH green power tools. Perfect replacement for BOSCH 18V PBA batteries. Converts Makita 18V BL series lithium battery to BOSCH 18V PBA battery. Precautions: 1. The adapter has a protective plate. When not in use for a long time, separate the battery from the adapter to avoid damage to the battery. 2. This adapter does not support charging the battery. 3. Only one adapter is included; batteries and electric tools are not included. Product appearance and color may vary slightly between batches, which does not affect functionality. Color: Black Material: Plastic Package Contents: 1 x Converter Note: Light reflection and different display settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.