Lenovo Lenovo 15.6” Laptop

Lenovo laptop with a gray exterior. Full keyboard and vivid display. Ideal for work and play. 💻 LENOVO V570 15.6” (Did a factory reset) 💻 Intel Core i5-2450M CPU @2.50GHz 💻 Installed RAM 6.00 GB 💻 Sticker removed on bottom left front side 💻 Sticker removed on back side 💻 Some scratches on the back 💻 Includes: Lenovo AC/DC Adapter Model: ADP-65KH B 🗣️ BAG PICTURED IS NOT INCLUDED‼️ 🚨Laptop works with no issues while charger is plugged in. As soon as I disconnect the charger the laptop shuts off. Not familiar with Lenovo Brand so I’m not sure what the issue is if any. Possibly a different charger. Added a few pictures showing 25% battery and the battery settings.