buying a new battery
So I had some water demage to my phone, everything worked but the battery wasn’t charging anymore. Everything else worked so I opended my iphone 6s up and checked with a voltage meter and my lightning port has a good voltage but my battery gives 0 volt. So I guess i have to replace the battery, where is the (cheapest) best place to buy just the battery and not the whole kit as i already have all the tools in EU (Belgium). Is there something I should look out for when buying the battery ?