Dell Jukebox DJ 5GB Replacement Battery 3.7V 950mAh

Dell Jukebox DJ 5GB / HVD3T — 3.7V Li-ion Replacement Battery (BA20203R60700)

This 3.7V 950mAh Li-ion battery replaces the original cell in the Dell Jukebox DJ 5GB and Jukebox HVD3T portable media players. Both models share the same battery bay dimensions (48.24 × 32.34 × 4.26mm), connector pinout, and voltage rail. OEM part numbers BA20203R60700 and 443A5Y01EHA4 both cross-reference to this cell.

• DJ 5GB and HVD3T compatibility: Both units run the same 3.7V single-cell architecture with an identical physical bay. The connector and BMS handshake are the same across both, so one cell covers either device without modification.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the Jukebox platform. The BMS accepted full charge current from rest, held the voltage curve through playback load, and triggered low-voltage cutoff cleanly without false shutdowns mid-cycle.
• Post-install charge protocol for Jukebox players: These players frequently enter deep-discharge protection after extended storage. Connect the charger immediately after installation and leave it for at least 30 minutes before attempting to power on — the device needs trickle current to exit the protection state before it will accept a normal charge or respond to the power button.

Playback cutting out before the battery indicator reaches empty

The Jukebox DJ 5GB uses a voltage-threshold gauge, not a fuel-gauge IC. As the cell ages and internal resistance climbs, voltage sags sharply under the audio amplifier load even when resting voltage still reads mid-range. The BMS sees that sag cross the cutoff threshold and shuts the device down. A fresh cell with lower internal resistance holds voltage through the amplifier draw and eliminates the early cutoff. If it persists after swap, check that resting voltage on the new cell reads at or above 3.7V before installation.

Battery percentage jumping erratically after cell replacement

The Jukebox tracks state-of-charge by mapping voltage to a fixed lookup table calibrated to the original cell's discharge curve. After a cell swap, that table is out of sync until the device runs a full cycle. Charge to 100%, let it discharge fully through normal playback until shutdown, then charge back to 100% without interruption. After one complete cycle the percentage display stabilises and tracks the new cell's actual curve accurately.