Replacement battery for new two-way monochrome LCD remote controls such as VIPER5706V, CLIFFORD570.6x, etc. Remote control model numbers: 7756V, 7756X Until now, battery degradation meant replacing the remote control, which was the only concern with rechargeable remote controls. Similar to cell phone batteries, degradation becomes noticeable after about a year. Be careful if you start experiencing symptoms such as: * The battery drains quickly. * It can no longer be fully charged. Also, replacement is necessary if the battery can no longer be charged. Remote controls that do not turn on even when the charger is connected may be revived by replacing the battery. A detailed manual with replacement instructions is also included. The connector is also dedicated, so replacement is easy. Note) This is not compatible with old monochrome LCD models (5901/5704, etc.) or color LCD models (5906V/5904V, etc.) due to different sizes (sold separately).