Major coincidence! I needed to replace the battery on my Ameri-King AK-450 and discovered the issues with the FAA. Since mine was already installed and didn't want to re-invent the wheel, I went with the Kannad Ameri-King Retrofit ELT. The mounting plate has holes drilled that accommodate the original mount for the Ameri-King and the panel remote has accommodating electrical fittings that would make the replacement much easier using existing wiring. I attached the mount yesterday and today I will plug in the wiring for the panel remote switch and test. A little more than I wanted to spend, but worth it in effort. The Kannad is a bit smaller and lighter, battery exp. date - 8/2024