Batteries should be stored in cool, dry (27 degrees Celsius) places and out of direct sunlight
Delkor MF batteries are tightly sealed to prevent acid leakage. However, tilting the battery to an angle of 45 degrees can cause acid to leak through the vents on the sides. Therefore, batteries should always be stored in their upright positions. Prevent placing any aqueous or solid (i.e. conductors) bodies on top of the battery.
It is extremely dangerous to use tools, such as hammers, on the battery terminals when connecting cables to the mounted battery.
When storing the battery for long periods of time, check the voltage of the battery every 6 months. If the voltage (OCV) drops below 12.5V, recharge the battery before placing it back in storage.
Check the hydrometer periodically on stored batteries. If 1 or 2 of the indicators appear black, immediately recharge the respective lot.
 
Always wear safety glasses and rubber gloves when handling the battery.
The battery fluid can emit hydrogen gas, which can cause risk of fire or explosion.
Charge the battery in a well-ventilated area and prevent short-circuiting
  and/or the emission of sparks.
Follow the directions for the booster cables before using.
The battery’s electrolyte fluid (sulfuric acid) can cause blindness and/or severe burns and
  should be kept away from the eyes, skin, clothes and other objects. If contact is made, immediately wash the affected area thoroughly with water and if swallowed, immediately drink a large quantity of water or milk. If swallowed or if contact is made with the eyes, immediately seek medical treatment by a physician.
Do not tilt the battery and do not exert force of any kind on the battery.
Keep batteries away from flammable areas/objects.
Do not attempt to quick-charge the battery.
Delkor batteries are vacuum-sealed. Do not attempt to disassemble the battery.
Keep batteries away from high temperature and high humidity and store away from rain,
  snow and direct sunlight.
Dispose of discarded batteries accordingly.