Nikon SB-500 AF Speedlight - Manual (Page 75)

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Tips on Speedlight Care and Reference Information
• The large amounts of current used by the Speedlight may result
in rechargeable batteries becoming unusable before reaching the
manufacturer’s stated recharge/discharge limit.
• When replacing the batteries, turn the product off and insert the
replacement batteries in the correct orientation.
• Dirt on the battery terminals can interrupt the flow of current. Clean
dirt from the terminals before inserting the batteries.
• After being fired multiple times in quick succession or using the
LED light for an extended period of time, the Speedlight may stop
operating to allow the batteries to cool depending on battery
specifications. Normal operation can be resumed once the batteries
have cooled sufficiently.
• Batteries tend to lose capacity at low temperatures, recover lost
voltage when allowed to rest, and slowly discharge when not in
use. Be sure to check the battery level before use and replace the
batteries before they are fully discharged.
• Do not store batteries in locations subject to high temperatures or
high humidity.
Notes on Batteries