Fans can get pretty reactive under load. So I tended to use this for casual use and video playback rather than intensive tasks. RAM is soldered. Not upgradeable. Laptop only. And I had to get the motherboard replaced.
ASKC L19M4PDD L19D4PDD L19C4PDD Laptop Battery for Lenovo ThinkBook 13S G2 ITL ThinkBook 13S G2 ARE ThinkBook 14S G2 ITL Series 5B10Z37621 SB10Z37619 5B10Z37618 5B10Z37617 15.44V 56Wh
AKKEE 45Wh L18C4PF0 Laptop Battery for Lenovo ThinkBook 13S 13S-IML 13S-IWL 14S 14S-IML 14S-IWL 13S-20R90071GE 14S-20RM0009US Series L18M4PF0 L18D4PF0
DR. BATTERY L18C4PF0 L18D4PF0 Laptop Battery Compatible with Lenovo Thinkbook 13S 13S-IML 13S-IWL Series 14S 14S-IML 14S-IWL Series L18M4PF0 5B10S73499 5B10S73501 5B10W67315 5B10S73500 [15.36V]
1x CELLONIC Battery Compatible with Lenovo ThinkBook 13s Gen 1, Gen 4, 13s-IML Gen1, L18C4PF0, L18D4PF0, L18M4PF0 2900mAh 15.2V
ASKC L18C4PF0 Laptop Battery for Lenovo ThinkBook 13S-IML 14S-IML 13S-IWL 14S-IWL Series L18D4PF0 L18M4PF0 5B10S73499 5B10S73500 5B10S73501 15.36V 45Wh 2964mAh
PUGASR L18C4PF0 L18M4PF0 Laptop Battery for Lenovo ThinkBook 13S-IML 14S-IML 13S-IWL 14S-IWL 20RR 20RS 20R9 20RM L18D4PF0 5B10S73499 5B10S73500 15.36V 45Wh
![DR. BATTERY L18C4PF0 L18D4PF0 Laptop Battery Compatible with Lenovo Thinkbook 13S 13S-IML 13S-IWL Series 14S 14S-IML 14S-IWL Series L18M4PF0 5B10S73499 5B10S73501 5B10W67315 5B10S73500 [15.36V]](https://images.buynet.work/thumb.php?i=350799692&s=240)
