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But NASA stressed that "there is no imminent danger and there is plenty of time for the spacewalkers to complete cleanup tasks before returning to the airlock."
Cassidy and fellow astronaut Dave Wolf ended the third of five spacewalks for the space shuttle Endeavour crew at 2031 GMT. The pair removed multi-layered insulation from the Japanese Kibo science laboratory and prepared payloads for their transfer to Kibo's new Exposed Facility on Thursday.
But due to the spacesuit malfunction, they only replaced two of the six original batteries on the ISS's photovoltaic power system. NASA said the remaining batteries -- only four need to be changed -- would be replaced on a future spacewalk.
Each ISS battery measures 40 inches by 36 inches by 18 inches (101 centimeters by 90 centimeters by 45 centimeters), weighs 375 pounds (170 kilos) and is designed to last 6.5 years.
The Japanese Exposed Facility is a 1.9-tonne platform-like structure that was attached on Saturday to one of Kibo's two pressurized modules and is designed to service experiments that require direct exposure to the vacuum of space.
Endeavour took off from Cape Canaveral, Florida on July 15 for a 16-day mission with a crew of six Americans and one Canadian to help complete construction of the ISS.
On the second Endeavour spacewalk Sunday, astronauts moved equipment from Endeavour onto the ISS and repaired a malfunctioning toilet on the orbiting station.
During a first spacewalk Saturday, astronauts completed construction of the Kibo lab during an outing that lasted five and a half hours.
The ISS should be completed in 2010, which also is the target date for the retirement of the US fleet of three space shuttles.
Endeavour is expected to land back on Earth on July 31. The launch of the next shuttle, Discovery, to the ISS is planned for August 18 at 4:25 am (0825 GMT).
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Cassidy and fellow astronaut Dave Wolf ended the third of five spacewalks for the space shuttle Endeavour crew at 2031 GMT. The pair removed multi-layered insulation from the Japanese Kibo science laboratory and prepared payloads for their transfer to Kibo's new Exposed Facility on Thursday.
But due to the spacesuit malfunction, they only replaced two of the six original batteries on the ISS's photovoltaic power system. NASA said the remaining batteries -- only four need to be changed -- would be replaced on a future spacewalk.
Each ISS battery measures 40 inches by 36 inches by 18 inches (101 centimeters by 90 centimeters by 45 centimeters), weighs 375 pounds (170 kilos) and is designed to last 6.5 years.
The Japanese Exposed Facility is a 1.9-tonne platform-like structure that was attached on Saturday to one of Kibo's two pressurized modules and is designed to service experiments that require direct exposure to the vacuum of space.
Endeavour took off from Cape Canaveral, Florida on July 15 for a 16-day mission with a crew of six Americans and one Canadian to help complete construction of the ISS.
On the second Endeavour spacewalk Sunday, astronauts moved equipment from Endeavour onto the ISS and repaired a malfunctioning toilet on the orbiting station.
During a first spacewalk Saturday, astronauts completed construction of the Kibo lab during an outing that lasted five and a half hours.
The ISS should be completed in 2010, which also is the target date for the retirement of the US fleet of three space shuttles.
Endeavour is expected to land back on Earth on July 31. The launch of the next shuttle, Discovery, to the ISS is planned for August 18 at 4:25 am (0825 GMT).
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