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Part# 11-10012
MFR Model# E-04.0


Replacement battery pack for the E-04 Series 406 ELT.

Note: This is not a direct replacement for the E-01 battery.


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Very happy with order and quick shopping

Terry B
September 26, 2019

Bought the ELT years ago and was happy to see the battery was available quickly and not at an outrageous price.

Forrest A
April 11, 2019

Shipped fast and the battery was really new. Like about two weeks old. Impressive service.

April 4, 2019

Shipped fast. Easy installation. Worked as expected. Expiration date was a month less than the month we were on.

Rick S
March 19, 2019

Battery was in stock and shipped quickly. Battery manufacture date was within three weeks of delivery to me which is outstanding. Changeout was a breeze. Highly recommended.

Gerry P
July 9, 2018

Works great, lasts a long time.

John N
December 27, 2017

Happy with the purchase. My new battery was only 2 months old out of the box so itâs still good for 4 years and 10 months.

Capt. G
January 12, 2020

Would have gave 5 stars but ACK had a back order on these.(3 weeks) Not Aircraft Spruces fault.

Sanford M
June 21, 2019

The only problem I had with this order was not with aircraft Spruce but with ups who would not allow a pickup at there terminal which was only 10 minutes away

Alvin M
July 21, 2018

Like the ACK ELT, but hate the cost of this replacement battery. Seems like another case of stick it to the customer because he has no choice but to use our battery configuration.

Gary H
May 16, 2019


Q: Is this battery a direct replacement for the model e-01 that the e-04 model replaces?

No, the E-04 battery will not work as a direct replacement for the E-01 battery.

Q: How long is the battery life on your E-04 P/N 11-10012 battery?

The battery is rated for 5 years.

Q: Is the MSDS available for this ACK E-04 Series Replacement Battery?

Yes, we have added it to the Documents tab of this web page. Please review it there.

Q: Is this battery the replacement of elt battery pack with pn: 0141823-e ? If not what is the replacement? What do you suggest?

No, this is strictly for the ACK E-04 ELT. We unfortunately do not have a recommendation for the 0141823-e.

Q: Since these are lithium based batteries, are they rechargable?

No, these batteries have a 5 year lifespan and are not rechargeable.

Q: How much does the ACK E-04 ELT replacement battery weigh?

Approx 1.17 lbs.

Q: Can this lithium battery be air shipped, like UPS Next Day Air?

Yes, this can be shipped via air, however, it will be expensive as hazardous fees will apply.

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