Electricity Cost for 10hr 12V 55Ah Battery Charging: Calculate Consumption & Average Payment

how much electricity does the battery consume for 10 hours of charging?
and more specifically, how much do you pay on average for such charging?
charger set for 12V charging, 55Ah battery

I do not know what it is needed for, but for me, charging the battery costs an average of PLN 15-25, and it consists of several factors, namely, there must be a suitable room, of course, ventilated, knowledge, measurements, amortization and electricity, the consumption of which is not high, but at the same time not the most important thing

I need it because I am forced to recharge the battery frequently
however, it costs a lot
i.e. when charging it at home in a ventilated room, I have to add PLN 15-25 to the bill each time?

This simple output, you can buy a rectifier, one-time cost of PLN 50-60 for this battery is enough, and it is not the cost of electricity, but the entire service.

I think we didn't understand each other
I have a charger at home and I use it to charge the battery
and the question is how much on average do I have to add to the electricity bill when charging it for 10 hours

Hello, with this battery you will consume a maximum of about 1kWh.
So you have to add some 50 cents

It depends on the charger. When charging with direct current, the current should be approximately the same throughout the charging process - in your case it is approx. 5.5A and charging for 10 hours with a fully discharged battery (not to zero). With such charging, it is easy to "overcharge" the battery, because usually a fully discharged battery is not attached to the charging process and then the electrolyte has to be refilled with distilled water. Constant voltage charging is more convenient than in a car. Then, when connecting the battery to the charger, the charging current is high (it depends on the state of discharge of the battery - in my case even up to 10A). This current decreases as it charges and remains constant after charging. The level of this current is individual for a given battery and its technical condition. With a well-chosen charging voltage and a very good battery condition, the (new) charging current practically drops to zero. As the battery ages, the final current increases and the amount of this current indicates the condition of the battery.
I did not follow the charging current over time with the chargers in which the capacity of the battery being charged is set and after charging they turn off by themselves. But I'll check it out.

and what is the cost of 1kWH
It's probably a lame question, but I don't know anything about the current

After all, it was written clearly:

NIUTAT wrote:

Hello, with this battery you will consume a maximum of about 1kWh.
So you have to add some 50 cents

From what I remember, it is about 45-50 groszy with all the fees.

jozefg wrote:

After all, it was written clearly:

the post was edited and I didn't notice it
thank you for the quick reply
greetings

gimak wrote:

This current decreases as it charges and remains constant after charging. The level of this current is individual for a given battery and its technical condition. With a well-chosen charging voltage and a very good battery condition, the (new) charging current practically drops to zero. As the battery ages, the final current increases and the amount of this current indicates the condition of the battery.

Sorry to unearth the old topic. I charge 4-year-old batteries, and the charging current does not want to drop below 3.5A for nothing. Previously, it was down from 6A. Is this normal for an old battery? Is the charger out of order?
It charges at High, as I switch to Low, the current drops to 2A.

battery most likely to be thrown away

Grucha383 wrote:

gimak wrote:

This current decreases as it charges and remains constant after charging. The level of this current is individual for a given battery and its technical condition. With a well-chosen charging voltage and a very good battery condition, the (new) charging current practically drops to zero. As the battery ages, the final current increases and the amount of this current indicates the condition of the battery.

Sorry to unearth the old topic. I charge 4-year-old batteries, and the charging current does not want to drop below 3.5A for nothing. Previously, it was down from 6A. Is this normal for an old battery? Is the charger out of order?
It charges at High, as I switch to Low, the current drops to 2A.

It works, only in the latter case you switch to a lower transformer tap (you lower the voltage) or you turn on the additional resistance (you limit the current), but you extend the charging time.
What I wrote refers to a rectifier that has no automation. At the output transformer on the secondary side, the alternating voltage = 12V, i.e. peak voltage (max) after rectification = 17V, while the mean voltage with full-wave rectification will be = 10.8V. With such parameters, it is not possible to overcharge the battery and then when charging (recharging) the currents will be delighted as I described. I have been using this (home-made) rectifier for 35 years. I also have a rectifier with automation, but I use it sporadically.
Charging may be longer (I'm in a hurry), but it's safe for the battery.
Commercially available rectifiers and those described on the forum, the transformer output voltage has a much higher 16-17V, so the peak and average voltages will be proportionally higher and if it were not for automation or human supervision (charging shutdown), the batteries would be successively overcharged.
With such rectifiers, this quiescent current will be much greater and thus, after charging, harmful to the battery (water electrolysis), and the automation or the human being should watch over it better or worse.

I have a question. As it is in the case of cheap rectifiers with smooth regulation (popular Stefpole, Romstany, Kukle, etc.). Is the power consumption from the network also influenced by the regulator setting?

In nature, nothing is for free, and in this case this rule applies. The greater the current (charge) we pump into the battery, the greater the current the rectifier takes from the mains. It does not matter what the rectifier is. By regulating the battery charging current (lowering it), the current consumed by the charger from the mains is also lowered, but at the same time the time after which the battery is fully charged is extended.

>>6185276

My friend writes that the new battery will drop the current to zero.
What about electromobility and battery aging?
For example, I assume that a car with a new 50 KWH battery charges it fully
after some time, for easy calculation, the battery efficiency drops to 50%, I will take 50% of this value from the network, i.e. 25 KWH
or, as my friend wrote, that the landing current will not drop and even though I have range on field batteries, I still pay the same amount

If you have landed 25 kWh, that`s how much you have to put in, plus minor energy losses, let`s say 27 kWh in total. Similarly, if you take 40kWh, it will be 43kWh.

arturcempel wrote:

For example, I assume that a car with a new 50 KWH battery charges it fully
after some time, for easy calculation, the battery efficiency drops to 50%, I will take 50% of this value from the network, i.e. 25 KWH
or, as my friend wrote, that the landing current will not drop and even though I have range on field batteries, I still pay the same amount

I don`t really understand what your friend means with this efficiency or current. Over time, not only the battery capacity decreases, but also the spontaneous loss of electric charge increases. The loss of capacity can be compared to silting - less and less electric charge can be extracted from it, but also less and less of this charge can be loaded into it. In my opinion, this loss of capacity cannot be compared with efficiency. Spontaneous loss of load can be compared to a hole in a bucket through which water constantly escapes and the hole keeps getting larger over time. As my colleague wrote in the previous post, you can and should supply the battery with at least as much charge as was previously taken from the battery, plus the losses of carrying out the operation of delivering this charge, and these losses will be greater the higher the charging current.
As for the charging current itself, it results from the characteristics of the power source (charger). For simplicity - when using exactly such a rectifier (without regulation), the initial charging current depends on the extent to which the battery has been emptied of charge. The final charging current is the sum of two components - the component resulting from the spontaneous loss of charge and the component of excess current resulting from too high a charging voltage, which goes into the electrolysis of water from the electrolyte, causing a decrease in the electrolyte level in the cells. This component is unfavorable for the battery.
My experience shows that constant voltage charging is the most advantageous, because it is very easy to eliminate, and prevent its formation, the component that goes into water electrolysis, thanks to the value of the charging voltage.
When charging with transformer rectifiers, it is difficult to determine clearly due to the pulsating voltage. Here, the rectifier will attempt to charge the battery to the peak value of the pulsating voltage.