BATTERY PACKS – EBC Authorized ELT Battery Packs
Authorized battery packs for all EBC, DEFT-1 and Sharc-7 ELTs
AUTHORIZED BATTERY PACKS FOR EBC EMERGENCY LOCATOR TRANSMITTERS
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 – $110.00
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.
Specifications:
- Weight: .05 lbs.
- Size: .5″ x 2″ x 3.5″
- Voltage: 9V
- Chemistry: Alkaline Manganese
GS-52 Alkaline Battery Pack – $150.46
Alkaline battery pack for EBC 502 – series emergency locator transmitters. This ELT uses 1 battery pack. Meets TSO C91a.
Specifications:
- Weight: 1.2 lbs.
- Size: 1″ x 2″ x 6″
- Voltage: 9V
- Chemistry: Alkaline Manganese

GS-46 Lithium Battery Pack – $320.05
The GS-46 battery pack uses lithium manganese dioxide chemistry to provide the 5 watts of power mandated for 406 ELTs. It has a replacement life of 5 years. The individual battery cells are encapsulated in a wide temperature range silicone potting material. Our process ensures structural integrity, waterproofness, and protects the cells from environmental hazards.
The GS-46 battery pack can be easily installed in the field by opening the cover of the ELT, removing the old battery and connecting the new battery. Because of the lithium content these batteries are shipped as HAZMAT and must be discarded as HAZMAT.
These battery packs are approved under TSO-C126 and TSO-142.
Specifications
- System: Non-rechargeable Lithium Manganese Dioxide
- Size: 2.53″H x 1.42″W x 4.14″ L
- Color: Blue
- Weight: 1.2 lbs.
- Voltage: 9.8 VDC, Red lead positive
- Total Lithium Content: 10.2 grams

DEFT-1 Replacement Battery Pack – $232.00 (P/N 05-07-002B)
4 year lithium battery pack for DEFT-1 ELTs. Shipped as HAZMAT and must be discarded as HAZMAT. This battery pack is approved under TSO-C91a.
Specifications:
- Weight: 1.35 lbs.
- Size: 2″ x 3.25″ x 3.25″
- Voltage: 12V
- Chemistry: Lithium Polycarbonmonoflouride.
- NOTE: This battery pack is approved to be carried in aircraft. It meets the 1995 International Air Transport Association (IATA) Dangerous Goods regulations that allow the transport of certain previously hazardous lithium battery products as non-hazardous after successfully completing the recommended safety testing.
- CAUTION: Do not disassemble the battery pack. Do not short circuit. Lithium is flamable, do not dispose of the battery pack in or near fire or flame.
Note: All batteries must be replaced after one hour of cumulative use or upon the date “replace battery by” stamped on the battery.
BATTERY TYPE |
REPLACE AFTER |
GS-21 ALKALINE BATTERY PACK |
2 YEARS |
GS-52 ALKALINE BATTERY PACK |
2 YEARS |
05-07-002B – DEFT BATTERY PACK |
4 YEARS |
00-04-006B – SHARC-7 LONG VERSION |
4 YEARS |
00-04-006C – SHARC-7 CLUSTER VERSION |
4 YEARS |
GS-46 LITHIUM BATTERY PACK |
5 YEARS |
WARNING: The use of non-factory approved battery packs in any of the EBC ELTs voids any warranty. |