It can also protect the orbital buffer from dust to prolong its service life. Compatible with 18V B series lithium batteries, such as BL1850B (197285-8), BL1840B (197270-1), BL1830B (197602-2), BL1430B (197618-7), BL1820B (197487-6); BL1850, BL1840, BL1440 (196391-6), BL1415 (194560-3), BL1815N (196781-3).
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