iphone 2g logic board + charging

[tulik23]

Hi
i have an old iphone 2g that i replaced almost everthing there , it was ,y first one ( battery , LCD ,Digitizer....)
the last time i replacethe battery ,i hold the welder too much time and the middle contact disconnected from the board , so i cannot charge the battery
i connected the battery external (with 2 plugs) only the red and black , all the time i need to replace the battery i need to shut it down .

any ideas if its possible so i can charge the iphone ??

beside buy another logic board

please assist

thanks
tk

[tulik23]

Please assist any ideas ???