Battery life is two to four hours with normal use. Installation/Replacement of Batteries Your laser operates with two AAA alkaline batteries and two are included with your laser. Replacing your laser pointer battery will result in your laser pointer being as good as new. Despite the different names LR44 and AG13 batteries are interchangeable as laser pointer batteries. LR44 and AG13 are the most common laser pointer batteries. What kind of batteries does a laser pointer take? then they would be committing an offence and, in the case of cars and aircraft, a particularly serious offence. Whilst owning a laser pen is not illegal, if a person had one in the street and was using it (or intending to use it) to shine in people eyes, at cars or aircraft etc. Put the casing and the laser pointer together and the laser works. Put the AAA batteries in the casing with positive side inside. Roll some aluminium foil and put it in the metal casing. Unscrew the top and back of the laser pointer and remove the batteries. How do you put AAA batteries in a laser pointer? eBay stocks batteries for a variety of laser pen types and at different prices. They provide lasting power for your laser pen, are easy to change, and are inexpensive. Laser pen batteries enhance the use of your laser pen once the original battery runs out.
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