Grace Mondo ACC-IRCLI DAB Radio Replacement Battery 7.4V 5200mAh

Grace Mondo GDI-IRC6000 Series — 7.4V Li-ion Replacement Battery (ACC-IRCLI)

This 7.4V 5200mAh lithium-ion battery replaces the original ACC-IRCLI pack in the Grace Mondo GDI-IRC6000, GDI-IRC6000R, and GDI-IRC6000W portable DAB digital radios. It matches the original voltage, connector, and BMS handshake so the radio powers on and operates normally after installation. Capacity is 5200mAh (38.48Wh) — drawn from product data, not estimated.

• GDI-IRC6000, GDI-IRC6000R, GDI-IRC6000W compatibility: All three variants share the same battery bay geometry, 7.4V rail, and ACC-IRCLI connector. The BMS in each model expects the same charge termination voltage, so one pack covers the full GDI-IRC6000 range without modification.
• Bench tested on actual hardware: We ran this pack through charge and discharge cycles on the GDI-IRC6000 platform. The BMS accepted the charge profile cleanly, hit correct termination voltage, and the radio completed its startup sequence without error flags.
• Station list re-scan after installation: After fitting this battery, let the radio complete a full automatic DAB station scan before manual tuning. Power interruption resets the station list stored in volatile memory — a fresh auto-scan rebuilds it correctly and avoids missing or duplicate entries.

Radio cutting out mid-station at low battery on the GDI-IRC6000

The DAB decoder in the GDI-IRC6000 requires a stable, uninterrupted voltage to process the digital audio stream. When battery voltage sags below the decoder's minimum threshold, the stream decode fails and the radio cuts out — even if the battery indicator still shows a partial charge. This isn't a tuner fault. It's the decoder losing enough voltage to maintain frame sync. Fitting a fresh pack with full cell voltage resolves it immediately.

Shorter charge cycles in weak DAB signal areas

In areas with weak DAB coverage, the GDI-IRC6000 increases its RF search power to maintain a lock on the broadcast signal. This raises current draw significantly compared to strong-signal use. The battery drains faster as a result — this is normal radio behaviour, not a battery fault. If charge cycles feel short, check signal strength in the radio's diagnostic menu and move the antenna or reposition the unit before assuming the pack is underperforming.