Oneus is trying hard to recover from an alarming situation involving one of its B-C products, which could potentially damage third-party charging hardware. In a blog post from Thursday, the company announced it would issue a full refund to anyone who purchased a B-C cable adapter from the company’s website.

The refund is available through an online application. Note that only stalone B-C cable/adapter kits purchased from the company’s website are eligible for a refund. The B-C cable adapter that came with a Oneus product are not eligible.

At the same time, the blog post asserted the true culprits are “cheaply made” third-party charging hardware that may not be up to regulatory snuff. “Name-br products like chargers, cables, power banks B hubs that are made by reputable companies are usually pretty trustworthy safe to use,” the blog post said.

The Oneus product is designed to work with power sources that can provide up to 2 amps. However, because it will allow higher power draws from fast-charging devices (such as ‘s Nexus 5X Nexus 6smartphones), it could expose third-party charging equipment to potential damage—if that equipment isn’t rated to hle higher amps.

The blog post went on to warn, “there are a lot of products on the market that are cheaply made more likely to potentially harm your devices. It’s a good rule of thumb to choose products from the brs you trust research their products to ensure compatibility before you purchase them.” The company recommended checking any product for U CE, or CCC certification to avoid issues of potential damage.

The blog post includes a chart that helpfully summarizes the compatibility of its B-C cable adapter with B-C devices charging hardware.

y this matters: Oneus its B-C cable/adapter kit attracted unwelcome attention when a engineer said the product could potentially damage charging devices. You need to have the unlucky combination of a B-C fast-charging device, a Oneus B-C cable/adapter kit, an inadequate charging source to run into any problems. The fundamental takeaway is to match all the pieces carefully.