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They work better because they're made better.
The GS-21 and GS-52 are 9-volt alkaline battery packs. These packs are carefully assembled to maximize crash survivability and preserve cell power. New brand name cells are first tab-welded together and then entirely encapsulated in a non-hazardous epoxy. The potting material is added through a portion-controlled pouring process and totally covers the bottom, top, sides and spaces between the individual cells, virtually eliminating failure-causing air bubbles. All batteries must meet our rigid quality control standards. They are hand-inspected for air bubbles in the poured potting material. Finished batteries must pass through a size gauge measuring width, height and depth. They are further tested for proper voltage and visually inspected by the QC department. The GS-21 and GS-52 batteries are not merely power sources, but are integral parts of the entire ELT system.
GS-21 Alkaline Battery Pack
Alkaline battery pack for EBC 102-series and EBC 302-series emergency locator transmitters. The EBC 102-series ELT takes 1 battery pack; the EBC 302-series takes 2 battery packs.
