Does a battery, fully charge weight more than a empty one?

Answer 1

In fact, the answer to this question is YES. (Sort of)

Here's why:
Einstein's famous equation says that e=mc2. In other words, energy and mass are fundamentally linked (by the square of the speed of light, which is a very big number). When you put energy in to a dead battery, that is equivalent to putting in a tiny, tiny, tiny extra amount of mass. I doubt any set of weighing scales on the planet would be able to detect the difference it makes to your average AA however!

For all practical purposes though, provided your battery is a closed system and airtight, a charged battery has no more or less mass than a discharged one.

Answer 2

Batteries could be a different story - not depending on the electronic data,
however. Batteries provide electrical energy, but they store the energy in
chemical form. They are made up of two different types of electrodes (cathodes
and anodes) in an electrolyte. Charging the battery up involves a set of
chemical reactions, and discharging the battery - or using the power in the
battery - involves the reverse of those chemical reactions. If the battery is
closed up, the total mass of the system, reflected as its weight, will not
change. If the battery is open to the air in some way, however, it is possible
that some products of the chemical reaction such as hydrogen gas could escape,
making a very small change in weight - so small that only a very very sensitive
scale might be able to detect the change.

Answer 3

thrilling debate, besides the fact that I easily have on no account weighed a battery while charged or no longer, i be attentive to that the electrolyte which has a "particular gravity" will substitute from a charged battery to a non charged battery. that could tell me that there's certainly a weight substitute. And in case you communicate what easily reasons the cost, electrons suspended interior the electrolyte, and that electrons do have weight, i might could anticipate a charged battery does in fact weigh greater.

Answer 4

No......ya cant weigh energy the acid in batterys holds the charge thats all if ya emptyed the battery then yes but the charge makes no diff

Answer 5

I know what you mean. We use different types of rechargeable, and I can tell if a battery needs charging by the weight. But I've never tried them on scales (my kitchen scales aren't up to the job!)

Answer 6

No. They both weigh the same. The charge on a battery is stored as energy to be released. Aafter all your house doesn't change weight when you put the light on does it??

Answer 7

empty battery , full battery it still weighs the same

doh

but have to admit it is a nice thought

Answer 8

I would say a fully charged one is lighter
because the bubbles,full plenty of bubbles,
empty no bubbles, so full of bubbles, lighter.


.
Ime for ever blowing bubbles pretty bubbles in the air.

Answer 9

because theres fluid in your rechargable battery, which makes your battery feel heavier when fully charged.

Answer 10

Techically yes - but the difference in weight is SO tiny you'd need VERY sensitive scales to tell.