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(3) Do not place any foreign objects and tools on
the lithium-ion battery to prevent short circuits.
(4) Battery packs of different brands, different
capacities or different types should not be used
together.
(5) If there is a large amount of dust or other
foreign objects on the top cover and posts of the
battery pack, use compressed air or dry cloth to
clean them promptly, rather than water or a wet
cloth.