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DIY: Repair Makita BL1830 Battery by Making One Good From Two Bad : 8 Steps (with Pictures) - Instructables
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Mrupoo 18V 5Ah BL1850b Replacement Battery with LED Indicator Compatible with Makita 18V BL1830B BL1860B BL1820,2-Pack - Walmart.com
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Makita U.S.A. | Press Releases: 2015 MAKITA RELEASES NEW 18V LITHIUM-ION BATTERIES WITH ON-BOARD L.E.D. CHARGE INDICATORS
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