Dell announced this morning that it would recall an additional 100,000 faulty laptop batteries. This latest announcement will move the total number of recalled batteries to 4.2 million.

Toshiba also announced a recall of 830,000 batteries, made at the request of Sony. The Sony batteries explode due to shards of metal left within the cells. To date, nearly 7 million Sony batteries have been recalled due to the problem.

Dell recalls 100,000 more battery packs [Yahoo! News]