About this replacement
Bose SoundLink Revolve+ 2 — 7.4V Li-ion Replacement Battery (080061)
This 7.4V, 2600mAh Li-ion battery replaces the original pack in the Bose SoundLink Revolve+ 2 portable Bluetooth speaker. It fits OEM part numbers 080061, 080065, and 829049-0210. When the original cell degrades after repeated charge cycles, swapping this pack restores full speaker function without replacing the entire unit.
- SoundLink Revolve+ 2 fit: The Revolve+ 2 uses a dual-cell 7.4V pack with a proprietary BMS handshake that monitors cell balance and communicates state-of-charge to the speaker firmware. This replacement matches that voltage rail and connector pinout so the speaker's charge indicator and protection circuit operate as expected.
- Bench tested on actual hardware: We cycled this pack through charge and discharge on the Revolve+ 2 platform and confirmed the BMS completed full charge termination without fault codes. Cell balance across both cells remained within 20mV at top-of-charge.
- Monthly discharge cycle for the Revolve+ 2: If this speaker sits on a desk and gets topped off daily, discharge it below 20% at least once a month before recharging. Constant shallow cycling causes fuel gauge drift — the charge indicator reads full while actual capacity has already dropped significantly.
Audio distorting before the battery indicator reaches empty on the Revolve+ 2
The Revolve+ 2 amplifier draws a sharp current spike at high volume. As the cell ages and internal resistance rises, that spike causes a voltage sag that the amplifier sees before the BMS triggers low-battery cutoff. The speaker clips the audio signal to protect the amp — which sounds like distortion or a crackling output — even though the indicator still shows remaining charge. A fresh cell with lower internal resistance eliminates the sag. After fitting this replacement, confirm the speaker plays clean at full volume down to below 3.5V per cell before the low-battery warning appears.
Revolve+ 2 won't wake from USB-C when the pack has been deeply discharged
Li-ion cells that drop below roughly 2.5V per cell fall outside the minimum acceptance voltage for USB-C Power Delivery negotiation. The charger and speaker exchange no handshake, so the LED stays dark and the speaker appears completely dead. Connect the original Bose charging cable — not a third-party USB-C PD charger — and leave it for 20 to 30 minutes without interruption. The onboard pre-charge circuit trickle-feeds the cell back above the PD threshold, after which normal charging resumes. If the LED still shows no activity after 30 minutes, the cell has been held below 2.5V long enough that recovery is unlikely and the pack needs replacement.