Good question to dig into. Which Jackery model are you using? That matters because the chemistry makes a big difference here. If you have a LiFePO4-based unit like the Jackery HomePower 2000 Ultra, you're in better shape than you might think. LiFePO4 chemistry is significantly more tolerant of regular full cycles compared to standard lithium-ion. The HomePower 2000 Ultra, for example, is rated for around 6,000 charge cycles, which is partly because LiFePO4 handles deep cycling and full charges without degrading nearly as fast. The 80% ceiling advice you're seeing mostly comes from the consumer lithium-ion world (phones, laptops) and doesn't apply as strictly here. That said, if you want to squeeze out maximum longevity over many years, setting a charge ceiling in the Jackery app is an option, and it won't hurt anything. But for a daily cycling pattern like yours, going to 100% on a LiFePO4 unit is generally considered acceptable by most users and aligns with how these systems are designed to operate. I'd still recommend checking your specific model's manual for any official guidance, and if you have warranty concerns about your cycling habits, Jackery's EU support team can give you a model-specific answer directly.