Plotting the exact same thing myself currently.. Aliexpress have the batteries with full install tool kits for next to nothing.
https://www.ifixit.com/Guide/iPhone+4S+Battery+Replacement/7111
Type: Posts; User: StrikerNZ
Plotting the exact same thing myself currently.. Aliexpress have the batteries with full install tool kits for next to nothing.
https://www.ifixit.com/Guide/iPhone+4S+Battery+Replacement/7111