My first phone (Nokia 3310) really miss it, now smart phones are out with HUGE improvements but no other phone has this amazing battery life.
https://i.imgur.com/baiXVyd.jpg
Mine was the same ! THE BEST PHONE EVER MADE ! I think if I search hard enough thru the old boxes at home i will find it and will try to turn it on https://i.imgur.com/baiXVyd.jpg
probably its still working.