Shure SB903 Rechargeable Lithium-Ion Battery for SLX-D Transmitters

Shure hasn't provided details on the 903, however, below is what Shure says about the 900 series: Shure Contact: Toll Free Phone (U.S. only): 1-800-516-2525 An accurate estimate is elusive as it depends upon multiple variables, such as storage temperature, storage capacity, actual usage, etc. Shure estimates that a single SB900 may have a maximum of up to 500 pro-rated cycles. One full cycle is the complete discharge of the SB900, followed by complete charge to "full." As an example: the SB900 has a "expected battery life cycle" of about 12 hours. If the SB900 is used for 4 hours, then charged charged to "full" after each 4 hour use, it would take 3 usages to equal a 1 full cycle. "4 hours" times "3 uses" = 12. A Shure customer reports using the SB900 for 170 hours of operation and the battery indicates a health rating of 97%.

Yes, the Shure SB903 Rechargeable Lithium-Ion Battery is compatible for use with Shure SLX-D Wireless Transmitters. The battery can be charged while inside of the handheld transmitter when using a charging dock like the Shure SBC203 Dual-Docking Recharging Station for SB903 Batteries & SLX-D Transmitters (B&H # SHSBC203US).

The Shure SB903 Rechargeable Lithium-Ion Battery for SLX-D Transmitters will automatically cease charging when fully charged.