Batteries

[BlazeNightash]

I have a interesting question if it can be answered by a developer 

Does having multiple batteries on the same power grid do anything more or really no more than 2-3 batteries at most is the limit and anything else is just wasted materials

[Alpe12]

The system will be able to store more power. Being able to remain on for a longer period of time when the consumption > production.

[GuyPerfect]

Each battery can store some amount of power depending on its size. For example, a standard Battery has a capacity of 40,000 J. If you're using let's say a Coal Generator, which produces 600 W of power (one watt is one joule per second), it will take it 40,000 / 600 = 66⅔ seconds to fill up the Battery.

You're probably noticing that when all of the batteries on the circuit get full, the generators will continue to produce--and subsequently waste--power. Going back to the Coal Generator again, it can store up to 500,000 g of Coal and burns 1,000 g/s while generating power. This means it can run for 500 seconds, which is enough to fill up 7.5 Batteries.

So if you were to build eight batteries and hook them up to a Coal Generator, refilling it only when the batteries were almost empty, you wouldn't ever waste any power. In fact, that's what I do:

     

[TheGCat]

@GuyPerfect

absolutely right!

More batteries = Lower resources consumption (coal for example)!

[KittenIsAGeek]

Yeah, I use batteries as a stabilizer on all my circuits. My primary power grid has a very large number of them.  Each "power transformer" circuit has one on the 1000 watt side -- two if its a heavy-draw circuit.

[TheGCat]

I have just one big battery circuit. In special cases i build few of them behind the transformer in order to prevent the system shutdown (Cooling networks or food production).

I have maybe 15 hatches. They poop more than I can use

[MidnightSteam]

Here's a good reason for batteries:

I start off the with a negative net power because of 8 gas pumps that go off during the night.

Then towards the end of the day they fill back up. Sometimes I can end with a Net of -100kJ. 

I have 12 batteries per Natural Gas Generators in case power goes out for 1 whole cycle; maybe a pipe is clogged and I didn't notice or I built new machines without calculating in power usage.

800 watts * 600 seconds = 480,000 Joules(or 480kJ)

480kj / 40kj(Battery) = 12 Batteries

 

Coal generators:

600 watts * 600 seconds = 360,000 Joules(or 360kJ)

360kJ / 40kJ(Battery) = 9 Batteries