Please choose the correct ending to complete the given sentence: Cars & Other Vehicles: [header] How to charge your electric car [title] See if your place of work provides free charging. [step] Ask your employer! If they don't now, they may in the future. [title] Install a charger at your house (note that the point of installation of the charger must be well ventilated, cool and dry).

Ending1: [substeps] Decide where you want the charger to be at your house. Do you have garage space? Think about what is convenient, safe and least costly (see below. Ending2: [step] If they don't provide free charging, they may over charge/reduce your electric bill. [title] Install a baby-specific charger (includes a bed charger). Ending3: [step] Magnesium batteries should be tubing and not tube shaped, high energy batteries should be aluminum, copper, construction materials (wood and concrete) should be obtained from your local hardware store. If you suspect you are doing this on a residential property, you will need a fuse box. Ending4: [step] A decent-sized charger kit is plenty. [title] Consider buying a second pair of batteries and a socket for the car's motherboard.

Answer format: ending1/ending2/ending3/ending4