√ Compatible with 18V B series lithium battery,such as BL1850B(197285-8),BL1840B(197270-1),BL1830B(197602-2),BL1430B(197618-7),BL1820B(197487-6);. It is prohibited to use other gears to start, in order to avoid weak sealant tubes and excessive thrust of the electric glue gun, which may cause tube explosions.
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