I add that so far the battery running in the normal course. First it heutehat at 50% volume (Level 50/100 on the speaker, 100% of the cell phone, Bluetooth) and mixed contemporary music lasted just over 2 1/2 hours until it was below 70% charge (charging status LED changes from green to orange ). I let the Envaya the Community swipe a blank 3-room apartment run as described and it was good to hear everywhere (louder did not, otherwise it would be in the room where he was to become loud!). There was also a Bose SoundLink Mini locally, but we have had only the Envaya run at the end, since it is precisely at empty raumen exaggerated bass just is not nice.
A recommendation on my part: In the guidance is that with a charging current of 2.4 amps should be charged. I did a little suspect that the escapees might have been favored down in battery performance in some users by general store with rather low currents (cell phone charger, USB port, ...). I've used only chargers with a minimum 1.5 amps output (not measured it, but deliberately respected it). Of course you can also load with lower currents and normally should not be a problem. But usually it never hurts to follow the explicit recommendations, if they are even in the Quick Start Guide. Who knows what the built Could Troll ICs do when they are not so charged, as provided by the manufacturer.