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Hi everyone will come back to be the solar energy course in your way.

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According for short term to medium term storage some old school kind of star Gene use is of course zap

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batteries they have just the right energy density and is a part of density too means that the deals

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on GMO and is a B visas.

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Of course this isn't a storage problem.

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And zat largest kid is to be solvent for now.

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Measures still seem to be in the holes.

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The renewable option for EBV system is a small to medium scale.

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The AC over implementation and the efficiency of batteries is this still unbeatable when compared to

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other technologies like both hydro compressed air energy storage conversion to hydrogen and converting

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back into electricity or other technologies.

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But what is the better that the batteries are electrochemical devices at home birth giving can energy

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into electrical energy.

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On a mainly classified as Ryan Murray battery and a secondary battery the primary battery convert is

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a chemical energy to electrical energy such as zinc carbon battery and out of time better sarcastic.

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Batteries are cool really cool recharge them from better converted the chemical energy to electrical

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energy they can charge Big O in Z chemical reaction is reverse using an over well to ensure it is also

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a war z exists over this weekend and then she is a to the in zips again in through battery is a whole

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chemical energy such as late as it battery Elysium ion battery it is just again a battery that we are

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interested in to see lower as possible storage option 0 or several kinds of seconds you'd better be

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close.

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I bet it was that could be used such as little as a battery.

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These are are all of this and some old battery technology available to tends today.

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But what are the Kennedy batteries type.

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The first fire is listed as a battery.

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The going to mobile batteries in which is edited to Ludes autumn is often telling leaded containing

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Galena oxide zap charge and common position during the charging and DC charging the electrolyte is Senator

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asset like this one.

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The second type is lithium battery as it used in Zend mobile for of the one is nickel cadmium battery

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I would call the storage battery in which is a positive additive material is negative side as a negative

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contain gun as shown in the SEC.

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The last one is.

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I'm going to die.

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But thanks to extend using with that soon the hydroxide as electorally as adult obesity would mess with

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the active maturity and Z castle of naked ladies the would suffers with active naked emitted when you

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choose any plans retire you will need to find some basic battery parameters such as rated voltage and

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the charging capacity rating.

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Every battery is rated with a certain voltage and capacity.

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The better integrated voltage is the nominal voltage Ed which is that battery is so old to bullet eight

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this so-called solar or battery all lived as a grid lead.

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Batteries are usually rated Ed toilet bowl only for whole forty eight.

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Of course the battery system in New D system can attain any voltage based on the interconnection of

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similar battery and if the system limit that their capacity in at domain of battery refers to the amount

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of a charge that is the battery can deliver as there it is all.

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The capacity is there mentally promotional does that amount to overload through admits union NZ better.

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This explains why is a small cell as laser device sends a larger cell based on the same chemistry.

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Even so the main circuit oldish throws this in will be the same for the Bulls son.

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So the whole issue of the Senate is more chemistry based.

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Why is the capacity is more based on an exact one entity of active material used in this but the unit

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for measuring is it better to give a C is and bear our or each is a goal to record level it from high

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school physics.

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That amount of charge is usually measured in column electric girl is defined as the rate of flow of

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electric charge so the charge can also be.

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It would definitely measure in ambient Oh but the weather is thick too.

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More on the on it.

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And beer 0 for measuring sympathetic guests 0 Oh shortly explains that it is time for this.

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We must not confuse empathetic capacity with an energy capacity.

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First of all what is the energy chemistry.

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We must not confuse that then they get the best deal.

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What is the energy chemistry

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and then she can best your of Z battery or any storage device for that matter.

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Is that more than that amount of energy that device can be stored.

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This is usually measure of the end water.

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As we read simple lean in Zain Verjee conversion visit.

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But how do we calculate the energy capacity of spending.

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Known zap zap voltage and the battery chemistry.

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Z.

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Capacity energy is equal to that agent better in folders times better at capacity and better.

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Oh so for example you must roll was a significant and beer Oh as a unit or better chemist.

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This itself give us some important clues about the method it provides.

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So if we take a brain and you better you is thin and bet our chemist think a cancer is a clean bill

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in front of one MBA for Dino as Zen to bridge.

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Or it can deliver a deal.

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Empires 4 5 0 0 or can deliver 5 and bid for 2 0.

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It means is that fighting with an enemy an hour and a delivery when their Z tie in with the 10 hour

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my the thing and being our over went bad.

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It will equal to our second parameter is this utility let us first understand how is it Bethany charged

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and a discharge as known charging it.

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This is chosen goes a battery adds a certain level it is just the right kind of chemical reaction taking

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place at an electric level.

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Charging and this is charging depends on the duration of the and to or from the battery.

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How does this relate to the battery capacity.

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This is where is the C rate.

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Come on.

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Siri is a measure of the rate of use a charge of the method relative to its a chemist means the C rate

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number is nothing but a multiple of the current over.

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That this is charge Gordon Z better it can service team over 1 0 me in thwarting some a rate of one

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see 14 and build our capacity battery will correspond to this charge card of Tina and bear over 1 0

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over on other hand serrated of 2 C towards the same battery which she is thinner and better our world

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bone 2.

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This is a charge card of 2 Any have beer over half an hour.

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Similarly serrated 0 0 in 5 C implies and this is charge current of 5 and beer over to our in general

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it can be said the serrated oath and c cross pawn tombs a battery getting fully the descent charge in

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time T S T is equal to 1 over C rate in general higher or lower series.

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Well it been the ones that charging into this a charging card that a battery whizzes serve to chemists

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experience so parameter is efficiency storage like every other component in the DV system.

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Say the efficiency of the storage system is also of high importance in simple terms.

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This is an issue of doing the storage system input to set the solar system outputs.

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For example if you set that in Q2 what it is folded into Z a storage system.

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Why the charging and you can't efficiently all of the 8 kilowatt hour.

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Why this is charging Z is that a real underrated efficiency over the storage system is equal to it over

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10 min.

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80 percent.

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The others are important in two kinds of all efficiencies

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both efficiency which is their ratio of average decent charge of voltage to average should charging

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voltage.

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This esteemed throws up fact is that in the charging voltage is always late on a bomb detonated voltage

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so as to dry and set it there is the chemical reaction in the battery.

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The second is that call on peak efficiency which is defined as that ratio of Z told in a charger.

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Those that Anthony does it do it in charging into that battery over there will cycle charge so I lost

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the bar all the time.

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Efficiency is the better efficient method.

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Efficiency is defined as the throwback to always dead add to efficiencies.

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This over all better the efficiency can be seen as a round trip storage efficiency that is usually considerable

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while comprehending the difference.

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Total devices this better efficiencies include save face of all chemical and electrical.

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None of the lists of care is about force the barometer is the state of the charge.

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This is defined as the percentage of the battery capacity available for discharge me and E available

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over a C Battery times V.

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So if you have rated 10 m b so if you have an MBA our rated battery that has been drain or in an hour.

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This said to head state overcharge over 80 percent in this environment out of which is that there is

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of this a charge or diesel D as divided as the percentage of the battery capacity that has been discharged

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means it is a charge over seedbed three times V so is a ten and a big battery said it had been drained

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by the two and bear our name.

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So is this a charge off to any person knows that there is all this is charged and the state overcharged

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can be seen as complementary to each other.

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The last the barometer we are going to discuss NZ theory is that cycle life cycle life is defined as

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a lot about overcharging and this is charging cyclists after wishes that battery capacity drops below

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80 per cent xenon in the venue usually is a cycle life.

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Is this is defined as absolute number but it would be bro's generalised gross usually is a cycle life

131
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is is defined as absolute number but it would be gross generalization to Caesar the battery lifetime

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can be stated as a single number without other specification but Roy It is because Z value is better

133
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a parameter this cause so far are related not all of the to each other but are also depend on to each.

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Let's discuss the thing of segmented environments now so cycle life demands heavily on z.

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This is charge untended resources charge the cycle lost 0 so it also emits ones that inhibition.

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This can be seen in a graph shown here or difficult menthols three limited as it so that tended to really

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get me lost longer under the set.

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All of that in breach of operation for a biological or to creature society lives by the mess on the

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monoline the only one is a device of this is Josh small so this is Josh the higher cycle like however

140
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such at higher outside the life would also mean says Zola's additional psychic you get it can only help

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you are smaller.

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This is device of this is chaff so it could be said that the battery will last longer exist at the depths

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of the sea Josh would be a youth over its nominal operation also battery overheating should be control

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means overheating could appear due to over charging and over a voltage of light.

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So we need to protect is the battery for all of our voltage and over charging so and it is the last

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laser in this section we are going to introduce to you the inverter which will protect Zed battery from

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over this is charged.

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See you in the next block.