We have chosen a unique chemistry, named LiFePO4, this is a 12.8V battery that can deliver under almost all circumstances - from the freezing winters (-20° C) to the burning summers (+50° C). It can also withstand more than a thousand cycles - the number of charges and discharges the battery can take - before the capacity drops under 80%. This means that you are almost guaranteed for more than 10 years of use - every day, 24 hours a day.
The average battery life of a single BATTERYBOKS 2 is approximately 40 hours, which includes playing at both low and medium. This will typically be enough for a whole weekend on a cabin trip, festival, etc.
The SOUNDBOKS 2 does not use a fixed amount of power but uses more power when you turn up the volume or play aggressive house/dance music with a lot of bass. Therefore the battery life in hours may vary from time to time, depending on the music you play and how loud you play it. For instance, if you only play music below 50% volume, you can expect up to 100 hours of battery life. Find the BATTERYBOKS 2 here.