---
title: How long does the battery of a SMARTING device last?
description: The battery of a SMARTING mobi device lasts between 4 and 4.5 hours, and the SMARTING Sleep device can stream data for up to 15 hours. It can go for 500+ cycles of charge-discharge in its lifespan.
---

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1. [Smarting](https://support.mbraintrain.com/smarting?hsLang=en)

# How long does the battery of a SMARTING device last?

The battery of a SMARTING mobi device lasts between 4 and 4.5 hours, and the SMARTING Sleep device can stream data for up to 15 hours. It can go for 500+ cycles of charge-discharge in its lifespan.

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