Designed to comply with manned space flight missions, the battery has a number of design features. The cells are sealed type nickel cadmium batteries, but unlike normal space qualified cells have a safety vent to release pressure should it become excessive due to undesirable charge or discharge conditions. There are 22 Sanyo KR-4400D cells in series with diode by-pass for cell reversal protection, equating to a 4.4Ah battery at a nominal 28V.

The new battery was commissioned by Fokker for their 130 kg microsatellite, SLOSHSAT, which will perform fluid dynamics experiments in space. SLOSHSAT will be launched as a payload in the cargo bay of the Space Shuttle and, once in space, will be ejected from the Hitch Hiker pallet in order to perform free flying experiments for a duration of approximately fourteen days.

SSTL has an impressive commercial cell qualification programme which has been developed over more than 15 years of commercial cell batteries in space.

MicroSat Blitz - SpaceDaily Special Report

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