Other information:
Removal
NOTE:
Removal steps in this procedure may contain installation details.
With the vehicle in NEUTRAL, position it on a hoist.
Refer to: Jacking and Lifting (100-02 Jacking and Lifting - 2.5L Duratec – Hybrid (121kW/164PS) (BG))
...
WARNING:
Batteries contain sulfuric acid and produce explosive gases.
Work in a well-ventilated area. Do not allow the battery to come in
contact with flames, sparks or burning substances. Avoid contact with
skin, eyes or clothing. Shield eyes when working near the battery to
protect against possible splashing of acid solution...