Not my daily driver (yet?), but made a custom dumbphone by getting a Nokia 3310 without a battery or charger and implanting a 2500 mAh Li-Ion cell and a USB-C port (details
Hardware
Buy Wholesale China Wholesale Blc-2 Rechargeable Phone Battery For Nokia 3310 3330 3510 High Capacity & Rechargeable Phone Battery at USD 1.3 | Global Sources
Nokia 3310 F-Bus Adapter | Hackaday.io
Nokia battery hack
Why do batteries for phones have more than 2 connectors? - Quora
Nokia 3310 · AllPinouts
Mobile Phone Battery Contacts for Nokia 6100/5800/2630/N95/V3 - China Battery Contacts for 6100/5800 and Battery Contacts for Nokia 2630/N95/V3 price | Made-in-China.com
Nokia battery hack
5409153 Nokia 3310 - Battery Connector 4pin
GRID® Nokia 3310
Battery Connector voor Nokia 3310 5409153 | bol.com
Buy Now Battery connector / jack for C3303
Nokia 3310 USB-C and battery modification
Nokia battery hack
Battery connector / jack for Nokia 3310 | JustJaldi
Nokia Ta-1030/3310/3315 Battery Positive Line Missing solution. Nokia Ta-1030 Power solution. - YouTube
hi, bought this used nokia 3310 and one of the battery connector pins has fallen/broken off, i tried to re-insert it to no aveil. Is there a way to fix it or
New 5pair/Lot 9Pin pitch 2.0mm laptop battery connector female and The male connector 180 degree bend foot - AliExpress
a few days ago i posted an image of this nokia with a broken battery connector, with a new battery connector installed it works like new : r/nokia3310
PVC 3 Pin Battery Connector For Jio Small, For Audio & Video, 1.5 mm
How to change replace nokia mobile phone battery connector easily - YouTube