Reference information
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If a replacement battery is being used for the first 
time or if the battery has not been used for a 
prolonged period, it may be necessary to connect the 
charger, then disconnect and reconnect it to begin 
charging the battery.
Unplug the charger from the electrical plug and the 
device when not in use. Do not leave a fully charged 
battery connected to a charger, since overcharging 
may shorten its lifetime. If left unused, a fully 
charged battery will lose its charge over time.
Use the battery only for its intended purpose. Never 
use any charger or battery that is damaged.
Do not short-circuit the battery. Accidental short-
circuiting can occur when a metallic object such as a 
coin, clip, or pen causes direct connection of the 
positive (+) and negative (-) terminals of the battery. 
(These look like metal strips on the battery.) This 
might happen, for example, when you carry a spare 
battery in your pocket or purse. Short-circuiting the