There is not currently a strong reason for avoiding contact of a battery with a concrete floor.
Do concrete floors drain batteries.
In the past yes batteries stored on concrete floor would loose charge because of the free electrons grounding themselves outside of the battery.
These meters all use a 12v battery to either deliver main power or serve as a backup and these batteries sit on a sheet of steel set atop concrete or sometimes directly on the concrete itself.
Cement and concrete floors provide a fairly good barrier between the car battery and extreme temperature changes that could otherwise cause damage to the battery cells.
And the potential problem of damage to the concrete floor from battery acid leakage has also been mostly mitigated as previously noted by interstate batteries.
If these batteries do discharge faster than expected i suspect it has nothing to do with the material upon which they sit but with the ambient.
Batterystuff knowledge base article answering the popular question about battery storage.
And because of the porosity of that material battery acid would sometimes seep through.
The design of modern day batteries includes a hard plastic shell that eliminates the intake of moisture thus making the garage floor a great place to put your car battery.
Battery myth 2 storing a battery on a concrete floor will discharge the battery.
The battery s contact with the concrete should not create a problem with the material in today s batteries.
Modern batteries are fully insulated and do not experience this problem anymore.
Apparently he is under the impression that putting a car battery on a concrete floor would drain it.
Today all of these automobile battery destroying or current conducting flaws have been eliminated by using plastic shells around the various types of battery designs.
Nowadays containers are made from a solid plastic that does not allow any current to flow through it so the batteries do not discharge even if they sit in a few inches of water interestingly enough many experts such as car talk s click and clack think that storing car batteries on concrete floors might actually be a great idea.
Thirty years ago or so most battery casings were made of hard rubber.