Pavilion x360 circa May 2016.
HP is expanding its recall of lithium-ion batteries.
As Tom's Hardware reports, HP actually updated the recall in January this year, but not many people heard about it.
According to HP, many of these faulty laptop batteries are non-removable, which means they can not be replaced by the consumer.
The initial recall in January a year ago saw 50,000 laptops identified as having a battery issue, with the additional 78,500 laptops now being recalled an expansion of that. HP announced the recall expansion back in January, but since the CPSC was affected by the government shutdown, it did not issue a notice at that time.
The recall is part of a continuing series of batteries being recalled by HP. Following this recall expansion, around a quarter of a million laptop batteries have been recalled by HP in a two-and-a-half-year span. They will send you a replacement battery.
The CPSC said the batteries were "shipped in notebook computers and mobile workstations sold from December 2015 through April 2018 for between $300 and $4,000 and were also sold separately between December 2015 and December 2018 for between $50 and $90". They were also sold as accessories or provided as replacements from December 2015 through December 2018 for the above products, as well as additional products through HP or an authorized HP Service Provider, including certain HP Mobile Thin Client products.
The faulty batteries were shipped in a wide range of products or sold as accessories for those products.
If you suspect your laptop qualifies - it doesn't apply to every model sold within that period - you can download the validation utility from the recall page to check.