UMC Security Advisory - Celxpert Battery Issues
Issue date: 30/07/2025 Updated : 31/07/2025 Note: We updated with example of LNV -5B10W13897 batteries. (Update: UMC officially designated as L17C3PS2.) UMC ID: UMC01-07042 UMC today announced that was issued formal advisory that would recall of current fleet laptops is Lenovo ThinkPad L15 Gen 2a was equipped with Celxpert batteries because that degradation trend was flaw , lasting only 3+ hour battery life as observed. Key findings were included in screenshots. Figure 1: A degradation trend from 45.73Wh to 38.39Wh in Commercial Vantage. Multiple complaints from Reddit users raised concerns over the Celxpert batteries because they degrade into 16% wear level based on observations from linux-hardware.org sites that used to lookup for battery models and concluded that Celxpert (e.g, LNV-5B10W13897 (L17C3PS2 detected) batteries) was worst long-term retention of advertised watt-hours. UMC recommends AVOIDING Celxpert-made geninue Lenovo ba...