GoGroove SonaWAVE Portable Speaker 3.7V 750mAh Li-ion Replacement Battery

GOGROOVE SonaWAVE Portable Speaker — 3.7V Li-ion Replacement Battery

This 3.7V, 750mAh (2.78Wh) Li-ion cell replaces the original battery in the GOGROOVE SonaWAVE portable Bluetooth speaker. It fits the compact wireless speaker chassis directly and restores full power function. Dimensions are 53.00 × 33.90 × 5.70mm — measure your existing cell before ordering.

• SonaWAVE platform fit: The SonaWAVE uses a single-cell 3.7V Li-ion pack with a compact flat-cell form factor. This replacement matches that cell footprint, voltage rail, and connector orientation so the speaker's internal charge controller sees a valid cell on reconnection.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on a SonaWAVE unit. The onboard charge IC accepted the cell without fault flags, and the protection circuit responded correctly to both low-voltage cutoff and charge termination events.
• First-use reconnection tip: After fitting this cell, run the speaker to low battery before charging fully — the SonaWAVE's charge controller recalibrates its cutoff threshold against the new cell's actual discharge curve on that first full cycle.

Why the SonaWAVE cuts out before the battery indicator reaches empty

The SonaWAVE's charge controller tracks battery state using a voltage-based fuel model calibrated to the original cell. A replacement cell with a slightly different discharge curve will cause the controller to misread remaining capacity. When the speaker is driving audio at higher volumes, current draw spikes — and if the controller's voltage threshold is miscalibrated, it triggers a low-voltage cutoff early. Running one full discharge-to-charge cycle at moderate volume recalibrates the threshold against the new cell's actual voltage floor.

Speaker won't power on after sitting unused for several months

Li-ion cells self-discharge during storage. If the SonaWAVE sat unused long enough, the cell voltage can drop below 2.5V — the point at which the battery protection circuit locks out to prevent cell damage. The speaker will show no sign of life even when plugged in. Connect the speaker to a charger and leave it for 20–30 minutes without pressing any buttons; most SonaWAVE charge ICs will trickle current into the cell to bring it back above the 3.0V recovery threshold before switching to normal charge mode.