Pure Move Radio Replacement Battery 3.7V 4400mAh Li-ion

Pure Move Radio — 3.7V Li-ion Replacement Battery (20100LP000542)

This is a 3.7V, 4400mAh Li-ion replacement battery for the Pure Move portable DAB digital radio. It fits the Move and Move Radio models using OEM part number 20100LP000542. Install it when the original cell no longer holds a charge or the radio shuts down unexpectedly during playback.

• Move and Move Radio compatibility: Both models share the same battery bay dimensions, connector pin-out, and 3.7V supply rail. The BMS handshake is identical across both, so the same cell works in either without modification.
• Bench tested on actual hardware: We cycled this battery through charge and discharge on the Move platform. The BMS accepted the cell cleanly, voltage held steady through DAB decoding load, and the protection circuit tripped correctly at the low-voltage threshold.
• Station list re-scan after power interruption: After fitting this battery, let the radio run a full auto-scan before manually tuning stations. DAB station lists sit in volatile memory and are wiped when power drops to zero. A complete scan rebuilds the station index — skipping it leaves gaps in the preset list.

Why the Pure Move cuts out mid-station at low battery

DAB decoding is not a steady load. The decoder chip pulls extra current each time it re-synchronises with the multiplex signal, especially in fringe reception areas. When battery voltage sags below roughly 3.2V under that spike, the decoder loses power momentarily and drops the stream. The radio may appear to have battery remaining on the indicator, because the voltage recovers the instant the load drops. Replacing a degraded cell with a fresh 4400mAh unit raises the voltage floor and eliminates those sag events.

Reception noticeably worse after fitting a new battery

If signal quality drops or the station list looks thinner than expected, the most common cause is a scan that was skipped or interrupted during first power-on. DAB radios map available multiplexes during the scan and store that map — without it, the tuner falls back to a partial or stale list. Run a full auto-scan from the settings menu. If reception is still weak, the RF front-end needs a minimum supply voltage of around 3.5V to run at full sensitivity, so confirm the battery is fully charged before testing signal quality.