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EI SUPER CLOCK battery

FLTENG

Well Known Member
Anybody have any tips/suggestions/know how on how to replace internal battery in a EI Super Clock ASC-5A
Thank you
 
Wow, I've had one in my Navion for well over 10 yrs and never even considered that it had to have a battery. Simplest thing is to call EI. They've always been friendly and helpful. Probably cheap if they do it.
 
I had a local avionics shop look at mine, and apparently they are exceedingly difficult to replace.

I sent it back to EI for the $100 battery replacement service, but since it was a 2002 model and no longer supported, they replaced it with a new unit for $250.
 
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