Lenovo phoenix force flash without battery

[dolan]

Hello, i have an old Lenovo Y650 laptop with battery charging problem, wanted to flash new bios that could repair this problem but cant, winpflash gives me error 166 that battery is not charged (obviously). I also tried pflash16 under DOS but this program also detects battery is not charged. I tried older versions of winpflash and pflash16 but they crash on this bios. I red winpflash manual but there is nothing about skipping battery test option. Is there a way to cheat flashing program into thinking battery is charged or force it to skip battery test? Maybe some alternative flashing software? Thanks.