Lenovo Retail Part Number 0A36303, Thinkpad Battery 70++, 9 Cell High Capacity Retail Packaged Lithium Ion Laptop System Battery

okay so now I'm trying to open up my original Lenovo g510 laptop battery it took me a lot of time to get this open but I've already made a video on my channel of how to open the laptop battery and save the packaging this is what I did I was able to not destroy totally the packaging next step is to draw a schematic or a diagram of the wiring of the battery and you can see there are two batteries in parallel and three made into three lines in series so in total four wires coming out of the battery pack into the BMS I'm preparing now the batteries that will be the replacement for soldering and that was some soldering flux liquid I applied that's done now on to the negative section of the battery and justinian with a very hot soldering iron at around 400 degrees C following the schematic now I'm using some Nikko strips that I solve it from other batteries to rebuild following the diagram so