Here is my Ericsson T28s in the rare “Slate Blue” color! It still runs on its original High Capacity BHC-10 battery, and can stay on up to a week in standby mode! :
New Arrivals 1250mAh BSL 10 Battery for Sony Ericsson T28 T28S T28SC T29 T39 T520 T320 R520 R320 BUS 11 Li ion Phone Batteries|Mobile Phone Batteries| - AliExpress
BSL-10 battery for Sony Ericsson T28 T28S T28SC T29 T39 T520 T320 R520 R320 | eBay
Sony Ericsson T28S Battery Replacement | New
Finally got my hands on a VoiceStream Ericsson T28 World (1999). The battery is toast, so I'm powering it externally. Unfortunately, it can't find any cell signal, even when I go to
3.7V Battery for Sony Ericsson T28 600mAh Premium Cell NEW | eBay
650mah Battery Bsl-10 For Sony Ericsson T28 T28s T28sc T29 T39 T520 T320 R520 R320 Bus-11 - Mobile Phone Batteries - AliExpress