答：Unused battery anode surface of water droplets...
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CR2477 Battery
Model：CR2477
Introduction：CR2477 batteries, mainly for LED gifts toys, flashlights, watches, electronic watches, movement, electronic gifts, electronic calendar, ear hearing aids, calculators, instruments. Medical equipment, flashing lights, alarm system, electronic toys, small electronic gifts, cameras and other small electronic devices.
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CR2450 Batteries
Model：CR2450
Introduction：CR2450 batteries, mainly for LED gifts toys, flashlights, watches, electronic watches, movement, electronic gifts, electronic calendar, ear hearing aids, calculators, instruments. Medical equipment, flashing lights, alarm system, electronic toys, small electronic gifts, cameras and other small electronic devices.
CR2430Lithium manganese Button batteries
Model：CR2430
Introduction：CR2430Lithium manganese Button batteries,mainly for the luminous gifts and toys, flashlights, watches, electronic watches, movement, electronic gifts, electronic calendar, ear hearing aids, calculators...。
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CR1632 Lithium manganese battery
Model： CR1632
Introduction：CR1632 Lithium manganese battery,mainly for the luminous gifts and toys, flashlights, watches, electronic watches, movement, electronic gifts, electronic calendar, ear hearing aids, calculators...。
CR1616 Batteries
Model： CR1616
Introduction：CR1616 batteries, mainly for LED gifts toys, flashlights, watches, electronic watches, movement, electronic gifts, electronic calendar, ear hearing aids, calculators, instruments. Medical equipment, flashing lights, alarm system, electronic toys, small electronic gifts, cameras and other small electronic devices.