About this replacement
JBL Clip 2 Special Edition — 3.7V Li-Polymer Replacement Battery (P453048D 01)
This 3.7V 800mAh Li-Polymer battery replaces the original cell in the JBL Clip 2 Special Edition portable Bluetooth speaker. It matches the OEM part number P453048D 01 and fits the compact clip-on housing without modification. Capacity is 800mAh (2.96Wh), identical to the factory specification.
- Clip 2 Special Edition fit: The Clip 2 Special Edition uses a flat Li-Polymer pouch cell at 58.80 x 41.70 x 3.50mm. That exact footprint matters — a cell even 0.5mm thicker can stress the housing seam and prevent the back panel from closing flush.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the Clip 2 Special Edition board. The protection circuit accepted the cell without fault flags, and the fuel gauge calibrated correctly after two full cycles.
- Monthly discharge cycle for the Clip 2: The Clip 2 is often left on a desk and topped off before it drops below 50%. Run it down past 20% at least once a month before recharging — this prevents fuel gauge drift that causes the speaker to report a false full charge and cut out unexpectedly.
Why the Clip 2 Special Edition cuts out at high volume even on a fresh charge
At maximum volume the amplifier and Bluetooth radio draw current simultaneously, creating a combined spike the aged cell cannot sustain without voltage sag. When cell voltage dips below the protection circuit threshold during that spike, the BMS trips and the speaker shuts off. A new cell with lower internal resistance handles the combined draw without the voltage drop. After fitting the replacement, run two full charge-discharge cycles to let the fuel gauge re-anchor its readings.
Audio distorting before the battery indicator reaches empty
This happens when internal resistance has risen enough that the cell voltage sags under amplifier load, even though the resting voltage still reads mid-range. The amplifier clips because it is not receiving stable voltage, not because the speaker is faulty. The battery indicator reads the resting voltage between draw spikes, so it shows higher than the actual under-load voltage. Replace the cell and confirm resting voltage holds above 3.6V after a full charge before reassembling.