Sony has now advised a dozen laptop makers to recall batteries, as the true extent of the overheating fault the led first Dell and then Apple to offer to replace batteries becomes clear.
Over the weekend Toshiba announced that it had extended the scope of its recall, adding batteries supplied with Qosmio, Satellite Portege and Tecra models to the Dynabook units it had already begun replacing and bringing the total size of its recall to 830,000.
Fujitsu followed by confirming the recall of batteries supplied with 19 laptop models, though it declined to say how many were being replaced.
Meanwhile Dell added another 100,000 batteries to the 4.1 million it had previously recalled.
Add to that the figures from the Apple, IBM and Lenovo recalls and Sony finds itself having to foot the bill for the replacement of more than seven million batteries worldwide.