I checked this battery model on Google and i don’t think that is a good idea to give some juice by connecting positive and negative terminals. I mean,there’s components on your motherboard that will control the voltage and Amp to charge the battery in the right way. The thing is a little bit more complex then just conect negative and positive wires.
If you have a DC power supply is a different story,you could use it to power up your phone and retrieve your data.
If you have a universal battery charger you could use it to charge your battery by connecting positive and negative.
Here’s an exemple of a universal battery charger : https://www.amazon.in/Rebel-Universal-Mobile-Battery-Charger/dp/B00YWHIIP6
Hope that helps.