Yes the Anker Power Bank 548 uses LiFePO4, with 3000 charge cycles. No it didn't get downgraded. : r anker How to Reset Anker Power Bank Fix Charging Issues & Unresponsive Power Banks YouTube Big comparison: the best 20,000 mAh powerbank Galaxus AliExpress
Shopping security
Each payment you make on thelockerguy is secured with strict SSL encryption and PCI DSS data protection protocols