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! :
Portable Emergency AA Battery Charger Extender suitable for the Sony Ericsson T28 WORLD - with Gomadic Brand TipExchange Technology - Walmart.com
Sony Ericsson T28 World Battery - EMT Company – emtcompany.com
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
1x 650mAh BSL10 BSL 10 Battery For Sony Ericsson T28 T28S T28SC T29 T39 T520 T320 R520 R320 BUS 11 Batteries|Mobile Phone Batteries| - AliExpress
Synergy Digital Cell Phone Battery, Compatible with Sony Ericsson T28 Cell Phone, (Li-ion, 3.7V, 600mAh) Ultra High Capacity, Replacement for Sony Ericsson BHC-10 Battery - Walmart.com
Akku 900 mAh LI-ION - gigatel.hu
10pcs /lot 650mah Bsl10 Bsl-10 Repalcement Battery For Sony Ericsson T28 T28s T28sc T29 T39 T520 T320 R520 R320 Bus-11 Batteries - Mobile Phone Batteries - AliExpress
ORIGINAL ERICSSON T28 T28s NO BATTERY Cell Phone | eBay
Battery 1700mah Bsl-10 Battery For Sony Ericsson T28 T28s T28sc T29 T39 T520 T320 R520 R320 T20sc T29sc T65 T66 T68 T68ie Bus-11 - Mobile Phone Batteries - AliExpress
Sony Ericsson BSL-10 battery + charger cable for T28 T28S T28SC T29 T39 T520 T32 | eBay
Sony Ericsson R320 R520 T28 T28z T29 T36 T39 T39M Replacement Battery: BatteryClerk.com
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