Bytommy105
I want to connect three car batteries, each rated at 100 amps and 12 volts, in series and connect a converter. They will power a 2000-watt stove, a kettle, and a coffee maker, each rated at 80 watts and 24 volts. How long will the batteries last?
Please explain for idiots, I have no idea.
(1 votes)
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Depending on what kind of battery you can use, you can’t basically take the entire capacity, because in some types of batteries this leads to damage or even destruction.
And with many batteries, the capacity that can be easily removed also depends on the level of the discharge current.
Apart from this, normal car batteries are designed to provide very high currents for a short time. Capacitive discharge as a supply battery destroys it quite quickly.
This question makes little sense.
Reasons: If it’s not a truck as a base vehicle, you have a 12V bug, none with 24 V. Then three batteries could be connected in series.
If you really need 24 V. then this goes with 2 or 4 batteries. In two with series connection, at 4 with a combination of parallel and series connection.
Disadvantages when there are lead batteries: Very high weight, which reduces the payload of the vehicle and costs fuel. Lead batteries can be unloaded up to half without damage. This means: A lot of weight for nix. If they are discharged more frequently up to below 50%, this has a significant effect on their service life.
2 kW stove makes no sense by battery. If you have three batteries in parallel, you have reached this limit with assumed 3 batteries and 50% maximum discharge after less than one hour. Since you probably want to run a stove with 230 V, you need an inverter that in turn consumes electricity. i.e., after about 45 minutes is Ebbe. This is often not enough for a complete court.
The coffee machine is uncritical, but I would strongly recommend getting one with 12V. Parallel networks for 12 and 24 V in the WoMo make no sense. FrenchPress or the good old Bialetti on gas is also more sensible here.
It will be exciting where and how you want to recharge the batteries. That is, you need good weather, very large solar area and a day patience or have to drive a few hours. In the case of assumed 50 A charging power over a strong booster, therefore, for at least three hours to refill the 50% removal.
As far as the batteries are concerned, this must then be so-called supply batteries. They are designed differently than starter batteries and also provide lower power over a longer period of time. “dual use” batteries if you really want to cook with electricity.
Or LiFePO4 batteries, which cost significantly more, but can be discharged for example almost to 0. Example: I have a LiFePO4 in the box car, which makes 150 Ah. One. It is thus as loadable as your DREI lead batteries would be (at 50% extraction). She weighs only 17 kg. However, your three batteries weigh around 80 kg and need space accordingly. If you also compare the possible life of the batteries, the expensive lithium battery suddenly becomes cheaper. This can hold 5x longer (or more).
From my modest point of view, all this becomes more complicated than a proper gas installation. For cooking, heating and hot water, electricity does not really make sense in the WoMo.
There is no explanation of “for dummies” in this matter. You can do too much wrong and end up jeopardizing you and/or the vehicle. It also needs much more information from your site for further advice. For example, what a basic driving point is and what you have in mind.
Hello,
conventional KFZ starter batteries are not technically designed for longer-lasting maximum load reduction, and also have only a fairly flat discharge capability. Or, it is greatly simplified that the actually exhaustable storage capacity of a starter battery is partially disproportionately reduced with increasing continuous current load.
In addition, an electrical inverter also has only a certain efficiency of approximately 75 to 85%. The device converts the rest of the energy flowing through in the rubbing in waste heat. With the cooker for cooking, you should therefore focus better on gas. Small coffee machines and diving boilers are available with a few 100 watts in the accessories for truck drivers at 24 volts.
Then you can also save the inverter, but 3 identical batteries cannot be connected to 24 volt output voltage.
LG
Hello
Since you don’t operate everything at the same time, it’s difficult to measure, I assume an hour is relatively safe, so a 4000 watt converter wants to be supplied.
Greeting
3×100 Ampere hours to 12v are 3.6kwh
just 2 hours the 2000 Watt stove.
3600 Watt for an hour you have approx.
If you only need 360 watts, 10 hours etc.
The kettle also has 2kw or so, the coffee machine also 80×24=2000 approx
You’ve got the right high bar when you do anything, 40 minutes.
so I almost replied. but I’m practicing a few rookies!
ok, stove 2000 W – but probably 220 volts
a coffee machine and an electric kettle with only 80 watts each, probably 1000 watts at 220 volts.
therefore, an inverter would have to be connected to the 3 batteries
and then do not forget – the insgesammz 300 AH- is only the half to use – so only 150 AH
We bought this and we got zero idea. There are 3 150 A batteries that are dead. Now we’re looking for an alternative.
Where are you talking about? Ampere (A) or Ampere Hours (Ah)?
Yes, clear 220 volts
Normal electrical appliances are not designed for 36 V DC. You need an inverter and converter.
This is
from 12V will never be power current.
He has a luminous flux
It’s an induction stove with two plates, I don’t know more. I appreciated the consumption.