Is It Bad To Leave Your Kindle Plugged In?

To put it simply, leaving your Kindle plugged in when it’s fully charged won’t harm the device, but it might affect the battery life in the long run.

As with many other electronic devices, the Kindle uses Lithium-Polymer batteries, which can handle a certain number of charge cycles before they start to degrade. In other words, the battery life of a Kindle is designed to last for a certain number of complete charge cycles. Keeping it constantly charged may degrade its health over time.

Kindle’s Power Management System

Amazon’s Kindle has a power management system that’s designed to prevent overcharging.

When your Kindle reaches 100% charge, the system will automatically stop charging to prevent damage to the battery. However, the device will continue to draw a small amount of power to maintain that 100% charge. This is where the problem begins.

Leaving your Kindle plugged in for an extended period causes it to cycle between a near-full charge and a full charge, which can degrade the battery’s capacity over time. It’s the equivalent of running a marathon but never getting the chance to cool down.

The Impact on Battery Longevity

When your Kindle’s battery gets fully charged and you leave it plugged in, the battery’s cells will be at their maximum voltage. Keeping the cells at this level for extended periods can cause stress, which will eventually affect the longevity of the battery.

Also, this could potentially generate heat. Though Kindle devices have mechanisms to deal with excess heat, if it’s an older model or there are any defects in the hardware, the heat could cause damage.

Best Practices for Charging Your Kindle

  1. Avoid Full Discharge: While it might be tempting to completely discharge your Kindle before recharging it, it’s not advisable. Modern batteries prefer frequent top-ups over draining completely.
  2. Unplug After Full Charge: As mentioned earlier, it’s best to unplug your Kindle once it’s fully charged to prevent potential long-term battery degradation.
  3. Regular Usage: Keep using your Kindle regularly. Batteries like to be used, and occasional reading will keep the battery in good health.
  4. Keep It Cool: Excessive heat can damage the battery. Try to keep your Kindle in a cool place, especially while charging.

Taking a Step Back

The impact of leaving your Kindle plugged in is not immediately detrimental and might not even be noticeable at first. It’s more of a long-term concern. Like fine wine, the effects age over time.

The result?

Your Kindle’s battery might not last as long as it did when you first bought it.

However, let’s be realistic. Electronic devices are not designed to last forever, and the battery life of gadgets diminishes over time. Even if you follow all the charging rules meticulously, you’ll eventually see some reduction in battery performance after a few years of use. But if you want to slow down this inevitable process, taking good care of your battery, including unplugging it once it’s fully charged, is a wise choice.


In conclusion, leaving your Kindle plugged in won’t cause any immediate harm, but it could potentially affect the battery’s longevity in the long term. So, for optimal battery health, it’s advisable to unplug your Kindle once it’s fully charged. However, the gradual degradation of the battery over time is inevitable, and it’s worth considering this fact when planning your charging habits. As with many things in life, a little care and attention can go a long way in ensuring a longer and healthier lifespan for your beloved Kindle.

Happy reading!

About Author

I'm Shehraj Singh, I started the eReader.blog to help people learn more about eReader specifically Amazon Kindle, and help them fix any issues they may have.

I have a lot of experience with Kindle, and I want to share my knowledge with you so that you can make the most out of your device.

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