> For the complete documentation index, see [llms.txt](https://docs.verifone.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.verifone.com/hardware-products/hardware/engage-devices/exxx-series/e285/e285-power-bank-installation-guide/maintenance-and-cleaning.md).

# Maintenance and Cleaning

The e285 Power Bank device has no user-maintainable parts. It can, however, be cleaned. Your Power Bank is a product of superior design and craftsmanship and should be treated with care. The following suggestions will help you protect your warranty coverage.

* Keep the device dry. Precipitation, humidity, and all types of liquids or moisture can contain minerals that will corrode electronic circuits. If your device gets wet, switch off the power and allow the device to dry completely before replacing it.
* Do not use or store the device in dusty and dirty areas. Its moving parts and electronic components can be damaged.
* Do not store the device in hot areas. High temperatures can shorten the life of electronic devices, and warp or melt certain plastics.
* Do not store the device in cold areas. Moisture can form inside the device and damage electronic circuit boards when the device returns to its normal temperature.
* Do not drop, knock, or shake the device. Rough handling can break internal circuit boards and fine mechanics.
* Do not paint the device. Paint can clog the USB-C port and prevent proper fit with the terminal.
* Keep the device free from any small and loose items (such as paper clips, staples, or coins) that could accidentally get inside it through an opening.
* Do not attempt to open the device other than as instructed in this guide.

These suggestions apply equally to your Power Bank or any of its attachments or accessories. If your device is not working properly, take it to the nearest authorized service facility for servicing or replacement. For your safety, have this device serviced only by a Verifone-authorized service provider.

## Surface Cleaning

To clean the device, use a clean cloth slightly damped with water and a drop or two of mild soap. For stubborn stains, use alcohol or an alcohol-based cleaner.

* Cleaning - Recommended cleaning agents are listed below.
  * Hand soap
  * Dish wash detergent
* Moisture - Avoid a very humid environment for storage or operating.
  * Storage Temperature
  * Storage RH 5% to 95% non-condensing
  * 1 month: -20°C to +60°C
  * 3 months: -20°C to +45°C
  * 1 year: -20°C to +25°C
  * Recovery capacity should be more than 80% after the first full charge.
* Don't leave the product outside in the sun.

{% hint style="warning" %}
Never use thinner, trichloroethylene, or ketone-based solvents – they can deteriorate plastic or rubber parts.

Do not spray cleaners or other solutions directly onto the keypad or display.
{% endhint %}

## Additional Safety Information

The following is additional safety information for using this device.

### Potentially Explosive Environments

Do not use this device in any area with a potentially explosive atmosphere. Follow all signs and instructions. Potentially explosive atmosphere include areas where you would normally be advised to turn off your vehicle engine. Sparks in such areas could cause an explosion or fire resulting in bodily injury or even death.


---

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