Exactly as described, the full user-manual (145 pages). Perfect.
Text excerpt from page 13 (click to view)
Your SE735 is supplied with 2 rechargeable batteries allowing approximately up to 12 hours of talk-time and up to 168 hours stand-by time. Before using the handset, the batteries have to be installed and fully charged. 1. Slide out the battery cover.
Place the batteries as indicated and replace the cover.
1. 2. Place the handset on the charging cradle of the base station. A beep is emitted if the handset is placed correctly. A charging animation on the handset indicates that the battery is charging.
Leave it there until the batteries are fully charged (at least 24 hours). The handset is fully charged when the charging animation stops and is displayed.
The handset must be charged for at least 24 hours before using it for the first time.
Low battery warning
The battery level is shown at the top left of the handset screen. When the battery level becomes low, an empty battery icon is displayed on the screen. If the battery level becomes exceedingly low, the phone automatically switches off and any function in progress will not be saved.