The Makita BL4020 (191L29-0) XGT 40v Max 2.0Ah Li-ion battery is equipped with an LED indicator that shows the remaining capacity of the battery. The machine also responds directly to the status of the battery.
Makita - Product Details - BL4020 40Vmax XGT 2.0Ah Battery
vhbw Battery compatible with Makita 40V MAX XGT, CF001G, AS001G, AS001GZ, CE001G, CE001GZ, CF001GZ Power Tools (
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40V 2Ah Li-ion BL4020 Battery for Makita 40V MAX XGT Tools
40V 2Ah Li-ion BL4020 Battery for Makita 40V MAX XGT Tools
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Makita USA - Product Details -BL4040-2
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Makita BL4020 191B29-0 40V Max Lithium Ion Li-ion 2.0Ah XGT Battery 2ah X 3