Soundcast Outcast OCJ411a Replacement Battery 14.4V 2600mAh

Soundcast Outcast OCJ411a / OCJ410 Series — 14.4V Li-ion Replacement Battery (OCJLB)

This 14.4V, 2600mAh Li-ion battery replaces the original pack in the Soundcast Outcast OCJ411a, OCJ411a-4N, OCJ410, and OCJ410-4N portable Bluetooth speakers. The Outcast series draws combined amplifier and Bluetooth radio current from a single cell pack, so voltage stability matters across the full discharge curve. Capacity figure is 37.44Wh as specified.

• OCJ410 and OCJ411a compatibility: Both the OCJ410 and OCJ411a variants share the same battery bay dimensions, connector pinout, and BMS handshake protocol. The 4N sub-variants use the same pack — no hardware difference affects fitment.
• Bench tested on actual hardware: We ran this cell under simulated combined amp plus Bluetooth radio draw at 14.4V nominal. The BMS held cutoff thresholds correctly and did not trigger false low-voltage shutdowns during high-volume audio bursts.
• Discharge cycling for OCJ-series speakers: Outcast speakers often sit on desks or patios plugged in continuously. Let the pack drop below 20% at least once a month before recharging — constant top-off charging without a full discharge causes fuel gauge drift and accelerates capacity fade on the Li-ion cell.

Audio distortion before the battery indicator reaches empty on the OCJ411a

As a Li-ion cell ages and internal resistance rises, terminal voltage sags under the combined current draw of the amplifier and Bluetooth radio — even when the fuel gauge still reads 20–30%. The amplifier clips at its supply voltage floor before the BMS reaches its cutoff threshold, which is what produces that distorted, compressed sound in the final stretch of a charge. A fresh cell at 14.4V nominal holds voltage more firmly under load, eliminating that sag margin. If distortion still appears on a new pack, check that the charging port is delivering a clean 14.4V and that no debris is partially blocking the connector.

Outcast speaker warm to the touch on the fabric housing during extended play

The OCJ-series fabric housing traps heat from two simultaneous sources: amplifier dissipation and battery discharge heat. At high volume, amplifier current draw peaks sharply, and the Li-ion cell adds its own thermal output as it works through discharge. A degraded original battery running at elevated internal resistance generates noticeably more heat than a fresh cell at the same output level. If the housing stays warm on a replacement pack, reduce playback volume by 15–20% and confirm the speaker is not resting on a surface that blocks underside ventilation.