No, Isa deliberately has no battery.

This offers clear advantages:

• Reliability in everyday life: Isa is always ready for use, without charging cycles or sudden failures
• Consistent Performance: no diminishing power due to aging batteries
• Less effort: no charging, no battery management

And more importantly:

• Thinking sustainably: Batteries are often a weak point in product lifespan, causing additional resource consumption, making repairs difficult, and burdening the environment upon disposal.
• Suitable for the usage context: Isa is used exclusively at the workplace, which is precisely where a power supply is already available.
• At first glance, a built-in battery seems practical, but in this case, it brings more disadvantages than real added value.