handheld 3820 Manuel D’Utilisation

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Batteries are shipped approximately 30% to 60% charged and should be fully 
charged for maximum charge capacity.

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The battery is a lithium ion cell and can be used without a full charge, as well 
as can be charged without fully discharging, without impacting the battery life.  
There is no need to perform any charge/discharge conditioning on this cell 
type battery.

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Do not disassemble the battery.  There are no user-serviceable parts in the 
battery.

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Keep the base connected to power when the host is not in use.

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Replace a defective battery immediately since it could damage the 3820.

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Don’t short-circuit a battery or throw it into a fire.  It can explode and cause 
severe personal injury.

•

Although your battery can be recharged many times, it will eventually be 
depleted.  Replace it after the battery is unable to hold an adequate charge.

•

If you are not sure if the battery or charger is working properly, send it to Hand 
Held Products or an authorized Hand Held Products service center for 
inspection.

When the battery has reached the end of its useful life, the 
battery should be disposed of by a qualified recycler or 
hazardous materials handler.  Do not incinerate the battery or 
dispose of the battery with general waste materials.  You may 
send batteries to Hand Held Products (postage paid).  The 
shipper is responsible for complying with all federal, state, and 
local laws and regulations related to the packing, labeling, 
manifesting, and shipping of spent batteries.  Contact the 

Product Service Department (see 13-1) for recycling or disposal information.  
Since you may find that your cost of returning the batteries significant, it may be 
more cost effective to locate a local recycle/disposal company.