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Amazon.com: JJXNDO for Dewalt 20V to 18V Battery Adapter, 2-Pack DM18D Upgraded Version DCA1820 Converter for Dewalt 18V/20V & for Milwaukee M18 18V Battery to Work for Dewalt 18V Nicad & NiMh
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Amazon.com : for Battery Adapter DM18M for Dewalt 20V Convert to for Makita 18V Lithium BL1830 BL1840 BL1850 14.4V- 18V Battery : Tools & Home Improvement
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