The battery cover is not an orderable part for any scales.
Yes, some newer models allow you to replace the battery.
The Lithium battery should last for approximately 10 years with an average family of 4 weighing once per day.
Make sure the battery is installed correctly. If the problem continues, check and follow the warranty information.
Lithium batteries have extremely small self-discharge, which prolongs the life of a scale. Also, these scales may be operated in a wide temperature range, from -40°C to 85°C.
Widely-available, coin-type CR2032, 2-Volt Lithium batteries are used in our Lithium bath scales.
This battery is available at any store that sells watch batteries. Look for type CR2032 for a replacement.
Make sure that the batteries being used are fresh, and are placed properly into the battery compartment. If the problem continues, check and follow the warranty information.