In this short video we show you step by step how to replace the CR 1220 3V Lithium battery in the Open Osai CNC controller. Many CNC Router manufacturers use Osai controllers including Excitech, Nextech, Techno, Onsrud, Holzher, NewCNC and many more.
If you have a Osai controller then its not a matter of IF but WHEN you find yourself faced with the 104 Spare alarm error message on your CNC interface.
We show a quick temporary work around as well as a walkthrough on replacing the internal battery inside the controller.
You can pick up this battery here: amzn.to/3QlWnUk
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