EE insists that the chargers went through rigorous safety testing and met electrical safety standards. However, The Register has pointed out that some of the chargers have a CE marking that fails to comply with the European Union’s labeling rules. A statement from EE says they have “identified a very small number of incidents where Power Bars have overheated.” For now, just one particular batch of approximately 500,000 chargers is being recalled, but the company has also suspended its promotion and stopped giving away the Power Bars. A note on EE’s website states, “We’ve not seen any issues of overheating with other batches and they meet all safety standards.”