OnePlus has asked fans to stop using its official USB-C cable with third-party devices.

The cable doesn’t properly conform to version 1.1 of the USB Type-C standard, and using it with anything but the OnePlus 2 could result in damage to your power source.

“Our cable and adapter use a 10kΩ resistor, but according to version 1.1 of the Type-C port standard, these products should be using a 56kΩ resistor,” explains the Chinese startup.

“The issue is that the cable and adapter are designed for a maximum of 2 amps of power, but the resistor will allow fast-charging devices to try to draw more power than a power source may allow.”

This isn’t an issue if you’re using the cable with the OnePlus 2 it was designed for, because the device can safely regulate how much power is drawn from the source. It’s also safe to use the cable with other devices so long as you only use a 2A power source.

But if you use the cable with a third-party device and a 3A source, particularly one that doesn’t have a self-regulation mechanism, then the cable could cause damage to that device. That includes USB charging adapters, power banks, and more.

OnePlus has thrown together this table that makes this easier to understand:

To be completely safe, it’s probably best you only use the OnePlus USB-C cable with the OnePlus 2. If you purchased one to use with a third-party device, then you have up until December 31, 2015, to apply for a full refund.

OnePlus has already begun developing new USB-C cables with 56kΩ resistors, but those currently shipping with its devices are using 10kΩ resistors. OnePlus says it will keep us posted when the newer cables begin shipping.

• SourceOnePlus