they don't i have left batteries on concrete for months and had on loss of charge.
They don't. That is just a myth. Modern batteries will not drain when placed on the floor even if it is concrete.
No, this is a myth.
First determine what you are going to install as the shower unit. If there is to be no shower unit and it will just drain through the concrete floor, then it will be flush with the floor. If you are installing a unit, then you need to look at the unit to determine the distance obove the concrete to place the drain.
The sun can have a number of different effects on batteries. The sun can for example either drain or charge different batteries.
Batteries used to drain faster if left sitting on concrete because concrete absorbs moisture, and the materials used to insulate the battery were not impervious to moisture. Hence a path was available to drain the charge from the battery into the moisture in the concrete if the battery was left in contact with it. A very long time ago, before plastics, car batteries were actually housed in wooden boxes inside a glass cover. Wood readily absorbs moisture from any source, even air. Moisture would cause the wooden box to swell & break the glass enclosure. Later, car battery housing was made of hard rubber with a high carbon content - also not impervious to moisture or electricity. Today's car batteries are encased in highly insulative thick plastic cases. Unless your car battery is an antiquity that belongs in a museum, it is safe to store for an extended time it sitting on concrete. It should not drain any more of its charge on concrete than if it were somehow levitating in mid-air. All car batteries will slowly drain no matter what you do. They drain more rapidly in hot weather & when high humidity is present in the air. If you happen to have retained them, I recommend that you store your battery with the terminal protectors in place on the posts on the top of the battery or inserted in the side receptacle terminals if it is a side-connect type of battery. Those plastic protectors that come on the battery from the manufacturer usually end up in the trash, but they are quite useful for minimizing drain if you need to store your battery for an extended period of time. It is likely that you might be able to get terminal protectors (post covers & / or side terminal inserts) from an auto parts store which also installs batteries on a regular basis - maybe for free. Hope this helps!
Many of them do and it's best to use NiMH as other batteries will drain.
Eveready batteries are a well known brand. The durability will depend on which battery that you buy, and the drain of the unit that the battery is in.
On a standard toilet in America the drain is 12 inches from the back wall to the center of the drain.
Yes you sure can. It is a myth that sitting a battery on concrete will drain the battery. It will not drain it at all.
Lithium Ion batteries are simply a very good option.They( and NiMH) work better than other types,especially applications which drain batteries quickly.
Concrete is dry rock and sand without water. They would have to drain the ocean to do that.
Depends... What KIND of batteries? Car batteries IDK cause I don't drive. But I know for regular like the batteries that you put into toys or whatever helps. Especially if you put them in the freezer. Hope this kinda helped. :DD