NP - BTW just checked my Mouser order history, if you want to add a removable battery holder to a ROM01 board you need a battery holder #108 and retainer #108C.

NP - BTW just checked my Mouser order history, if you want to add a removable battery holder to a ROM01 board you need a battery holder #108 and retainer #108C. The same Keystone brand holder is used on the 03 boards. https://www.mouser.com/ProductDetail/Keystone-Electronics/108?qs=Q3RoVmURDomBWyH0dBAK9w%3D%3D&countrycode=US&currencycode=USD https://www.mouser.com/ProductDetail/Keystone-Electronics/10... https://www.mouser.com/ProductDetail/Keystone-Electronics/108C?qs=%252BS1bAMbChF94gTKfq3OclA%3D%3D&countrycode=US&currencycode=USD https://www.mouser.com/ProductDetail/Keystone-Electronics/10...