• Be mindful of "Parasitic drain". This is when a load is put on a battery with the key off. Most vehicles have clocks, engine management computers, etc. These can drain even a fully charged battery over time.
  • DO NOT let your battery get boiling hot during a charge.
  • DO NOT put off recharging your battery. Avoid letting it discharge any deeper than you have to. 
  • DO NOT undercharge a battery. Overtime, that undercharged portion of the battery will going through sulfating leaving it not reactive. 
  • DO NOT let your battery sit too long between charges. Even as little as 24 hours in hot weather, and several days in cold weather can affect your battery's life. 
  • Always make sure your battery has some sort of energy input when storing it.