Hi pentras,
We here at the Futaba Service Center cannot give you instructions or help in changing out your lithium batter. We can only suggest that you send this into our service center to have our technicians check this out for you.
I hope you find this information helpful. You can also reach our Futaba support technical team at 217-398-8970, or via fax at 217-398-7721.
Sincerely,
Krysta
Lead Futaba Customer Service and Programming Technician
ORIGINAL: pentras
Does anyone know how to replace 9z built in lithium battery, I have opened the back cover but did not find any objects look like a lithium battery.