To maximize the lifespan and return on investment of expensive lithium-ion batteries, engineers recommend strict charging protocols:

• Avoid Fast Chargers: Discourage the use of public DC fast-charging stations, as their high current rates induce significant heat and stress, accelerating cathode degradation.

• Practice "Full-Cycle" Charging: Whenever possible, charge the battery to 100% after use and avoid leaving it at a partial state of charge for extended periods.

• Temperature Management: Never charge a battery immediately after heavy use when it is warm, and avoid charging in direct sunlight or freezing temperatures.
  Following these practices can help a battery achieve its full rated cycle life (often 1200+ cycles), whereas poor practices can cut lifespan by half or more.