Li-Ion Battery Backup Option

It's surprising how many certified aircraft experience power failures. Redundant systems addressing this can often be costly, complex and heavy. One way to keep flying safely without adding a lot of weight, complexity or cost is to simply add an optionally available internal back up battery to the EFIS itself. This battery will automatically take over powering the instrument for two hours or more enabling continued flight until you can safely reach the next airport.

The battery and charging circuitry are conveniently encased within the EFIS itself and automatically charge that battery anytime external power is applied. A separate door on the EFIS case facilitates battery installation and removal at any time without requiring either special tools or the aide of qualified technicians.

How it works

Any time the EFIS looses its primary power, a message is instantly posted on the screen to alert the pilot that the instrument will be shutting down within 30 seconds unless further action is taken. A simple press of any button on the EFIS continues operation on battery power.

It can happen and it does

More than one pilot has called to thank us for this life saving feature. While we often think it'll never happen to us, statistics strongly suggest otherwise. Dynon certainly advocates builders implement some sort of back up that'll enable continued safe flight independent of whether the aircraft experiences a power failure or the instrument itself fails.