The **NSA-BAT01** is a high-performance, rechargeable Lithium-Ion (Li-ion) battery pack specifically designed for use in professional electronic equipment, most notably high-end wireless audio transmitters and communication systems. --- ### 1. Key Technical Specifications The electronics within the NSA-BAT01 are engineered to provide stable voltage and high energy density. | Parameter | Specification | | :--- | :--- | | **Chemistry** | Lithium-Ion (Li-ion) | | **Nominal Voltage** | 3.7V | | **Capacity** | ~1100 mAh to 1200 mAh (typical) | | **Charging Voltage** | 4.2V | | **Connector Type** | Proprietary multi-pin blade connector | | **Compatibility** | Shure ADX series transmitters (ADX1, ADX2, ADX2FD) | --- ### 2. Internal Electronic Components The battery pack is not just a chemical cell; it contains a **Battery Management System (BMS)** PCB (Printed Circuit Board) that manages several critical functions: #### A. Protection Circuit Module (PCM) This sub-system protects the battery from conditions that could lead to failure or fire: * **Over-Charge Protection:** Cuts off current when the cell reaches 4.2V. * **Over-Discharge Protection:** Prevents the battery from dropping below a "dead" threshold (usually ~2.7V) to avoid permanent chemical damage. * **Short Circuit Protection:** Instantly disconnects the output if a short is detected. #### B. Fuel Gauge IC Unlike standard AA batteries, the NSA-BAT01 includes a **smart fuel gauge chip**. This component communicates with the host device (e.g., a Shure ADX transmitter) to provide: * Remaining runtime in hours and minutes. * Battery health percentage (SoH - State of Health). * Cycle count (how many times the battery has been charged). #### C. Thermal Thermistor An internal **NTC (Negative Temperature Coefficient)** resistor monitors the temperature of the cells. If the battery becomes too hot during high-speed charging or heavy use, the electronics will throttle or stop the current flow to prevent thermal runaway. --- ### 3. Connection and Charging Interface The NSA-BAT01 uses a specialized interface rather than standard +/- terminals: * **Data Pins:** These allow the battery to "talk" to the charger (like the SBC210 or SBC240) to negotiate the fastest safe charging speed. * **Gold-Plated Contacts:** Used to minimize electrical resistance and prevent corrosion over long-term professional use. --- ### 4. Summary of Advantages * **Zero Memory Effect:** Can be charged at any time without reducing capacity. * **Communication:** Provides precise telemetry to the user via the transmitter’s screen. * **Remote Management:** When used in networked charging stations, the electronic data from the battery can be monitored via software (like Shure Wireless Workbench).