MDS Battery has launched an e-commerce Web site so Macintosh and other computer owners can buy batteries online.

Established in 1989, MDS Battery is a major UK computer battery supplier. It offers batteries for most major computers, including Apple. It also sells mobile-phone batteries, AC adaptors and car chargers.

Before its public direct-sales move, the company only dealt with distributors and resellers.

MDS Battery claims all its products are "fully guaranteed" and backed by a one-year warranty. It also claims to hold 99 per cent of its range in stock, and to be able to support next-day delivery for orders received by 5pm.