Nacitah se stvarno svega... Danas, velika vecina baterija je Li-ion, i nju je najbolje ne isprazniti do kraja i ne puniti do kraja. Nego cijelo vrijeme pokusati drzati u "sredini"
Shelf life
- Charging forms deposits inside the electrolyte that inhibit ion transport. Over time, the cell's capacity diminishes. The increase in internal resistance reduces the cell's ability to deliver current. This problem is more pronounced in high-current applications. The decrease means that older batteries do not charge as much as new ones (charging time required decreases proportionally).
- High charge levels and elevated temperatures (whether from charging or ambient air) hasten capacity loss.[32][33] Charging heat is caused by the carbon anode (typically replaced with lithium titanate which drastically reduces damage from charging, including expansion and other factors.[34]
- A unit that is full most of the time at 25 °C (77 °F) irreversibly loses approximately 20% capacity per year. Poor ventilation may increase temperatures, further shortening battery life. Loss rates vary by temperature: 6% loss at 0 °C (32 °F), 20% at 25 °C (77 °F), and 35% at 40 °C (104 °F). When stored at 40%–60% charge level, the capacity loss is reduced to 2%, 4%, and 15%, respectively.[35][citation needed]
Znaci, na vijek trajanja jos utjecu i temperatura i postotak napunjenosti s time da sto je blizi sredini je manji postotak gubljenja kapaciteta s vremenom.