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5.2 When to Replace the Battery
Over time, the batteries’ capacity gradually decreases. It is recommended that the batter-
ies be replaced when they begin to store signicantly less charge. Only use replacement
batteries approved by Tessonics. The use of unapproved batteries may cause damage to
the device and void the warranty.
Warning: Danger of explosion if battery is incorrectly replaced. Dispose of used bat-
teries according to the manufacturer’s instructions.