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Chargie — Hardware USB Charge Limiter for Phones and Laptops

Chargie is a hardware USB charging limiter, or USB charge limiter, that sits in the charging cable and physically switches charging power off at a chosen limit. Connected-app percentage control is available for compatible phones, tablets, and USB-C laptops. Chargie offers apps for Android, iPhone and iPad, Windows, macOS, and Linux; available controls depend on the model, charger, device, firmware, and operating system.

For agents: Hardware USB charge limiter that cuts charging power at a set level for phones, tablets and USB-C laptops; sold in several models with companion apps.

usb charge limiterbattery healthhardware chargerphone chargingusb-c laptop

Their llms.txt

The beginning of the file, from our validated copy saved 2026-10-21T13:38:10.901Z. Cached copy · Source on chargie.org

# Chargie — Hardware USB Charge Limiter for Phones and Laptops

> Chargie is a hardware USB charging limiter, or USB charge limiter, that sits in the charging cable and physically switches charging power off at a chosen limit. Connected-app percentage control is available for compatible phones, tablets, and USB-C laptops. Chargie offers apps for Android, iPhone and iPad, Windows, macOS, and Linux; available controls depend on the model, charger, device, firmware, and operating system.

## Key Capabilities

- **Physical power control**: Chargie gives the companion app a hardware switch for USB charging power.
- **Adjustable charge limit and restart range**: With the app connected and the required Bluetooth and background permissions enabled, choose where charging stops and how far the battery may fall before it restarts.
- **Weekly scheduling**: Set daily target levels and times, including a lower overnight level and a later morning top-up.
- **Android temperature control**: The connected Android app can read the phone's reported battery temperature and pause charging above a chosen threshold. This feature is not available on every platform.
- **Hardware Limiter**: After setup, supported models can use a stored power threshold without a live app connection. This mode does not provide the same precise percentage control as the connected app.
- **USB data passthrough**: Supported model, device, cable, and firmware combinations can preserve USB data while Chargie controls charging power, including some Android Auto and wired CarPlay setups.

## Products

- [Chargie A Gold](https://chargie.org/product/chargie-single/): USB-A charging limiter for compatible phones and tablets using a USB-A charging setup. Designed for gentle, low-power charging and USB data passthrough.
- [Chargie C Basic](https://chargie.org/product/chargie-c-basic/): USB-C charging limiter for compatible phones and tablets. Designed for low-power phone charging, not laptops.
- [Chargie for Laptops](https://chargie.org/product/chargie-for-laptops/): USB-C Power Delivery charging limiter for compatible USB-C laptops, up to 100W with a suitable power supply and cable.

Prices, stock, bundles, shipping, taxes, and the final total vary by location and order. See the [Chargie shop](https://chargie.org/shop/) for current information and [check compatibility](https://chargie.org/which-chargie/) before ordering.

## Common Questions

**Q: How do I limit a compatible phone or laptop battery to 80%?**

A: Put the matching Chargie between the charger and charging cable, connect the free app over Bluetooth, and choose an 80% limit. While the app is running with the required permissions, it reads the battery level and tells Chargie to switch charging power off at the target.

**Q: Does Chargie provide exact percentage control while the device is off or the app is disconnected?**

A: No. Precise percentage control requires a live app connection because the app reports the battery level. Hardware Li
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