Backup battery

[AngloPepper]

Hello folks.

Just put a new backup battery in my D10A and I'm bench testing it. I have some questions;
1. What is the normal peak voltage
2. What is the voltage at which it stops working
3. How long does it take to charge from the minimum voltage to the normal

Thanks

 

[dynonsupport]

Peak voltage is about 16.8V.

Turn-off voltage is around 12V

A full charge from completely empty can take 10 hours.

 

[wv4i]

Just installed D10A with backup battery. Started airplane, avionics master-on, D10A came on fine, etc.

Airplane sits a couple of days, airplane battery shows 12.2 vdc, D10A will only pwr to blue Dynon screen, then right back off, then back to blue screen, etc.. repetitively. Is this indicative that backup battery has lost charge, it's doing some sort of POST, sees DC volts low, and powers back off?

I only have primary pwr connected to avionics master, keep alive is NOT connected.

I assume solution here is to charge airplane battery, by running engine or via wall charger, and all will be fine, or should I be looking for anything else.

5.1 firmware, EDC-10A, OAT, Gray converter pwr fm avionics bus separately, but could be pulling D10A battery down?

Thanks.