41.   The system would be powered by a solar cell or a thin film lithium battery.

42.   The weight includes rechargeable lithium ion batteries that last about eight hours between charges.

43.   U.S. computer giant Apple Computer Inc. was forced to recall its portable computers in September after the lithium ion batteries in some of them caught fire.

44.   What has made the machines practical, the association says, are five-year lithium batteries that eliminate the need for regular maintenance.

45.   Pacemakers regulate the heartbeat by sending an electrical charge from a tiny lithium battery down a wire to the heart muscle.

46.   But the higher cost of producing lithium ion batteries has mostly limited their use to high-priced consumer electronics products such as cellular handsets and notebook computers.

47.   Demand is growing rapidly for lithium batteries, which are used in calculators, watches, electronic notebooks, shoes that flash with pressure, Matsushita said.

48.   Despite reports of fires in portable Macintosh computers, Sony Corp. said Tuesday it believes its lithium ion batteries are safe.

49.   It is powered by a lithium battery with about an hour and a half of talk time per battery charge.

50.   Ministry spokesman Yiftah Kramer said the fire broke out when vats storing lithium batteries in oil fell and exploded.