Thanks, i am even more confused than before.

Dude I have to say I just got a lil solar panel and a deep cycle battery and this actually helped me a lot with understanding thank you seriously

thanks for the helpful explanation and info

Thank you so much Very short video but I got it. Good explanation

Very clear & useful. Thank you. :)

Thank you for this clear explanation!

Good day, that's good information. I have an adaptor and data cable, but their ampere is different. The adaptor have higher ampere than the data cable. How could I compute WH? Will I sum the two amperes?

Do you have a video or can explain to me what charger you would use for a 12v 18ah battery where the battery would last the longest not after the quickest charge? say if the battery was completly dead say it charges it in 5 or 6 hours.

just hook it all up and turn it on - time it till it shuts off then ya know

What is the reason for taking more charging current in the 200AH charger and how to reduce the charging current

So if I wanted to run multiple alternators say like 20 12v 300amps or 3.6kw high power car ones for 100kw at 12v to 15v at 6000amps would I need one for each or could I run it on one 12v 300amp battery so I don't blow it up other wise I'am going grafite and most would be for direct load use not storage use.

Thanks for the video!

Short and sweet explanation 👍

Thanks dude

hello, this summer i want (for a small party) to run 2 krk rokit 5 monitors, my laptop and a dj controller all at the same time for about 6-8 hours. would this be possible with batteries and an inverter? the manual of my krk's says that each monitor has a total power of 50 watt. some people told me this wouldn't wouldnt work even if i had 20 batteries, but i've seen other people on forums say something similar is very much possible. also to be honest i do not really care about wrecking the battery as long as it doesnt become dangerous. IS THIS POSSIBLE? PLEASE HELP :)

Hi sir i want to ask you something i have 6v 4,5ah battrey, how long if i charge the battrey with 0,43 amps??

Thank You So Much For Explaining. Very Informative.

Can you use one single 12v 80amp battery instead of 4 12v 20amp batteries

Whoa. This guy sounds a lot like the guy in the "Casually Explained" channel here on KZfaq.

Great easy and simple video

Amp-hour ratings are approximate statements related to the stored energy capacity of a battery. Energy is power over time. If you look at the chart, each curve corresponds to discharging a battery at a different current. Power is current times voltage. If you multiply the voltage curves on the chart by the respective currents, you will get a new set of curves, the area under which is the energy drawn from the battery. For example, the leftmost curve shows a drain of 32.5 amperes. The initial power drain at this current is 11.7 X 32.5 = 380.25 watts and this power curve would be much higher than the rightmost curve showing a drain of .33 amps, initially at about 12.8 volts = about 4.2 watts. The area under the two curves should be about the same, the energy capacity of the battery. Actually the high curve may show a little less capacity because some of the energy is being dissipated as heat in the battery proportional to the square of the current. All this is too complex for the average consumer so amp-hours is used as a simple metric related to capacity.

Thanks for the reply! I asked my friend and he said the same thing. Now I don't understand if I have 8 12v 150w panels in series I should have two charge controllers or do they make them go past 96v? I'm sorry that's my last question because he is older I don't think he knew

Thanks for confusing me more than ever

To be precise, ah is the quantity of charge contained in the battery, measured in coulombs. Multiply it by the voltage and you ll get the energy you can get from it, in joules.

Love your videos! I have a question if i have 1200w of solar for a rv running 12v batteries how many amp hours will that 1200w system need?

okay now i get it, thanks man. But will the voltage remain constant through this discharging process?

Let say my bike use 12v 8ah. It should be no problem if i use 12v 7ah right?

Awesome channel!!!

Aweesome ! Thank you

Thank you

I am running a 7 watt light outside the tool shed, 9.5 watts on the porch, and 9.5 watts on a small indoor lamp. All with a 100 amp hour battery. How many hours can I run all three?

If i have a component requiring 36ah battery how many ah battery do i need to keep the component running for 10 hours.

Confused.. need a way to check how much amp left in mobility scooter .I use 2 12v50ah batteries ..also do the batteries need to be fully charged after been riding....hope that makes sense ..

It's a lot easier to understand the capacity of a battery by converting the rating to watts. Amps 225 x volts 12 = 2700 watts So if you have an electrical device that draws 100 watts, you can theoretically run it for 27 hours. But if you don't want to destroy your battery, you'll won't run it past 50 percent discharge. So you really don't want to run a 100 watt device for much more than 13.5 hours. Or a 50 watt device for 27 hours. Or a 25 watt device for more than 54 hours. Or a 12.5 watt device for more than 108 hours. Or a 6.25 watt device for 216 hours.

Hello. I have a question that needs a good clear answer. My intention: To busk with my bass amp using a battery. Ok so my bass amp is : 100 watt max output. 310 Watt power consumption I have a 500 watt (1000 peak) invertor (modified wave). I read on 2 sites that its a god idea for to besafe, use a wattage 10-15 pcent on top of the power consumption value. (mine being 310 watts) I wont be cranking the amp up loud as it produces some lovely low end sounds. So..... For the battery, im aware of deep cycle bateries are more energy efficient (i dont mind charging it up eith my 12v charger when needed). There is a guy called DUB FX on youtube and he walks you through his setup. His setup is a 200 watt roland speaker combo amp. HE USES AN 800 WATT MODIFIED sine wave inverter and a 66ah 12v gel battery. My amp is half the wattage as his. Which battery would suit me for 3 hours of play time? Weight isnt too much of a problem . Thanks in advance folks of voltagery wattagery wizdom

I have a 12v UPS battery that shows "506 watts/cell. 15 min" on the label. How can I convert this to the standard 20 hour rating for AH? Thanks

But you cannot run a lead acid battery to less than 60% or it will damage it

I have two 12V 55Ah 420A car batteries connected together and i need to find out what alternator i should get. Does a 28V 55A alternator fits?

good video, about the lithiums in the EV's in comparison by using ledacid batteries to cover almost the entire floorboard with ledacid rechargeable, how do you think the performance could be? using specifically 'say' multiple 1,000cca ledacid truck batteries in series or both series and parallel connected to a electric fork truck motor? it'll definitely get warm maybe fan's underneath giving it a hydroplane effect, cooling the batteries. You could put some super capacitors before the ledacid batteries for extended life, and after the ledacid for drain. what do you think?

Could you please go into whether or not 2 batteries for say a 200 watt system could be an advantage.

I have 2 6V gel deep cycle batteries but no info label stating amp hours. Is there any way or a test to calculate battery amp hours?

How high should I charge my battery to store I have a 12 volt 35AMp Thunderbolt

Sorry, but I don't get this, I don't think you provided any explanation at all as to what an amp hour is. An amp for one hour straight, right, i get that, but at what voltage, or what's the load impedance or the power in watts? Why arent batteries simply rated in watt hours? Can someone please tell me what an amp hour actually really is? For example, according to Ohms law (V=I*R), if you take a standard 1.5V AA battery, you would need to put a 1.5 Ohm load resistance across the battery +- terminals to draw 1 amp. Drawing 1 amp from a 1.5V voltage supply for 1 hour through a 1.5 ohm load resistance is the equivalent V*I=1.5*1=1.5 watt hour. But if you take a standard 12V car battery, you would need to connect a 12 ohm load resistance to draw 1 amp. Drawing 1 amp from a 12V voltage supply burns 12 watts and doing it for one hour is the equivalent of 12 watt hours, more than 8 times as much power as with the 1.5V AA battery example. Surely the true definition of an amp hour refers to some fixed measurement of power, and not just some vague varying definition depending on voltage supply? So what gives?? What the actual f'''' is an amp hour?

So if I am running 2 AGM GPL24 batteries which are 80amps each for a total of 160 amps how long will it run at 7.5amp DC draw. can you answer and put formula here. Thanks.. This is great..

would this change if you had a super capacitor hooked in the circuit?

Not every battery has an Amp Hour listed on the battery. How can I know the Ah of a battery if it's not lt listed?

💥💥💥QUESTION 🙋‍♀️ what is the best way to maintain my 12Volt 35AMp how often should it be charge I guess the obvious thing to do would watch the voltage and when it gets I don’t know below 13 give it a charge that’s what I’m thinking is that correct thank you

I have 12 v car battery can i hook up in lead-acid battery and charge theme both

What if it doesn’t say @ what hours?

So if I increase the voltage of a battery the capacity would decrease witch means the battery would take less time to run out??

I wish you explained some more. thanks though

I need some help. if something requires 13ah to run for 20 miles. if I use 101 ah battery does that mean it should go 140 miles? the battery required is a 24v 13 ah lithium battery, I'm going to be using two 12v 101 ah lead acid. if I remember correct up the volts amp remains same. so should be 24v 101ah. right?

what battery capacity i need in 30watts led light with 140watts solar panel? thanks

Amps, is different than amp hr. Do the calculation . Also how many amp draw , of the product you are trying to power

can I use a capacitor instead of a regular deep cycle battery

I have a escooter abd i just replaced my batteries, 5x 12v 25 ah. But it seems my charger , that i also used for my 20 ah batteries cant charge them fully, and tgey also dont last as long as when i received the batteries full charged. Now im googling about it and some say i need a 25 or 30ah charger and others say i need a charger that charges with 10% of the total needed ah value. Not planning to buy new batteries every 6 months and restricted to ride only small distances . Will give ot one more try, but else i think i can say that the philippines is not ready yet f9r ebikes if cant provide correct info and equipment

Thing is things you buy say what watts they use unless there's packaging different for different people What is 11.25 amp hours supposed to say if everything is in watt usage on power consumption? What don't they just measure electric energy the same so that regular folk have some idea?

so run rate is the amp draw?? thank you

Hy, i want to uprade my motorcycle 12V 35/35 W headlight with 35W HID kit and the battery capacity of motorcycle is 12V 3Ah will it drain the battery? REPLY

Thank you I just got a new head torch for sea fishing at night and wanted the answer 🤔🤔Can I upgrade my Ah from 4000AH to 6000AH plus at the same 3.7volts YES! YES YES THANKS MAN 😁😁😁😁😁😁😁😁😁😁😁

Can you tell me what amp hours would be recommended for 4 twelve volt batteries for a 48v 1000 watt ebike converter wheel?

Hi. I bought two 12v26ah10 hour batteries by mistake for my mobility scooter & I just noticed the ones that were in it are 12v26ah 20 hour batteries. *Will the 10 hour batteries I just bought WORK in my mobility scooter?* If so, what changes can I expect? Thanks.

I'm considering a second battery for my car that will run multi-cameras, countermeasure gear, SSD storage drive, and an AC powered speaker. While I know, I will need an inverter, but I can't tell heads or tails of the amp rating of the BU switched isolated battery I'm considering. Here is an example: There are various references to amps, but I have no idea which one indicates the 'basic'​ amp rating. Open Circuit Voltage - 13.3V Max Charge Voltage - 15.0V Recommended Charge Voltage - 14.5V Minimum Voltage - 8.0V Max Discharge Current - 2,400A Continuous Discharge Current - 1,080A Max Charge Current - 540A RC - 124 minutes @25A Watt-hours - 675. Most of the values seem rather high, so I'm guessing RC-25 (Run Continuous​) amps?

I want to go camping and set up a portable power. I'm planning to use 1,000W electric single burner 1 hour a day. I have a 12V, 30 Ah lithum battery and a 100 W solar panel. I calculate 30Ah/20hrs=1.5A, 1,000W=12V x 83A. How to calculate how many minutes can I use from my 30 Ah lithum battery? Thanks for sharing!

Please don't compare lead-acid batteries with Lithium Ion batteries when talking capacity. It adds confusion into the mix. While Li-Ion batteries give back most of the charge, lead-acid batteries conform to Peukert's Law, which was discovered not long after their invention back in 1859 by Gaston Planté. That's the discharge run-time graph you show. There are very few good lead-acid battery tutorials on the internet. Most are trying to show how to calculate the size of the battery bank and solar panel installation and then they add in the charge controllers (PWM & MPPT) and inverters (pure sine wave and modified sine wave) into the mix and very few viewers can figure out what the video was all about in the first place. Each of these topics deserves a separate tutorial with real facts and figures, probably 2 or more parts to some of them. Did the spec sheet show the charging characteristics? Most don't but depending on the plate construction and chemistry, you need between 30 to 40% more energy to fully recharge the battery. For example, a fully discharged 100AH deep-cycle lead-acid battery will require between 130 and 140 AH of charge. A point sadly missed by most battery tutorials. Other videos are busy trying to sell batteries and add even more confusion. These are put together by sales-people who don't really understand the vagaries of rechargeable batteries of any type, let alone lead-acid. There are videos that repeat myths that need to be eliminated about lead-acid batteries. For a "thing" invented back in 1859, they have more myths and legends about them than anything else that I know of.

Hi my current battery is12v 6ah 10hr can i replace bettery with 12v 10ah or higher number on ah and hr. Which means i want to replace with 12v with bigger capacity battery. Pls advise me thank you

You explained it pretty good ,but not fully. I am trying to understand batteries. For example , I buy a small 9 volt battery to operate a small item at home, now compare to a 18 volt battery for a drill, compare that to a 12 volt battery for a car. I take it the term volt doesn't mean Any thing??

200AH 12V battery in series parrellel connection charged accross 24 v supply What is the total AH capacity in this case . Is it 800AH or just 400AH . Please answer sir

Brilliant

i just UNDERSTOOD this is complicated lol... i run a small "fridge" in my van that uses about 1-2 amps per hr if i am remembering correctly what that man said. i have a 30 ah agm battery and i can run my fridge for 2 days straight on a fully charged battery. Then i get home and that thing is depleted THATS ALL I KNOW.

but is ther a tool that measures ah?

Wow awesome explanation

Hi, I have one question...why 24v solar panel not connect to 12v battery?

I have a unit that pulls 19.5 amps. Could you please recommend a 12v battery to power it for at least 3 hours? I'd really appreciate it.

Perfect

Yes of course why couldn't I think of that

Basically battery capacity doesn't tell anything about the ampere in circuit..Ampere in circuit just depends upon wire resistance and load applied..Am I right please reply soon???

Hi, Is there a way to test a battery to find out the amount of amp? How do I know that the battery is 100amp or 300 amp? Do the listed amp matches the actual amp? Thanks

hey, I have a question about ah. I have a ice shaver that's 6amps. and I'm looking a dep cell battery that says 105ah. and I'm going to plug in my 110volts shaver to my 100 watts inverter box how long a day can I run my shaver. it's 105ah rated on 20 hrs. Thanks for your help Willie

BRO WILL U TELL 12V DC 9AH BATTERY MAH ??

So does this mean the battery will produce 11.5 amps per hour or per second .

I want to figure out how many Ah the battery is that in trying to buy... But it's only written in 20hr amp rate.. so how do I convert it so I know the full capacity. It says 69 (20hr rate-Ah) 63 (10hr rate-Ah)

I was using 3 ampere hour battery in my bike so currently can I use 4 ampere hour battery instead of 3 ampere hour in my bike or not

I have 24v 7 amp battery for power wheels can I replace it for 24v 12 amp?

That last line is where I need help: "the more battery power you draw, the faster you discharge the battery." 🤔 Assuming I am to draw much power out in a few minutes if I have a system to recharge the battery, what must I provide in this system to ensure it recharges the battery adequately and time commensurately (what amout of energy or what component??)

How many watts can come out of a 6volt battery?

You don't lower the capacity, you deplete the charge. 1.58 mark.

and you forget to mention that the standards for lead acid batteries say that the capacity is measured untill the battery reach 10.8V, but if you are using it under 12v will sulfatate and destroy herself much quicker... so if you discharge it untill 12v you will have much less capacity....

What is 12 volts at 20amp hours. Equal in amps?

Then what is what hours

You may, if it is a deep cycle battery.

How long will a 50 watt bulb runs on a 240 amp battery when fully charged

How about 6Ah/10hours? so 0.6A?

now after watching this, i regret changing my 120AH battery with a 90AH battery

Can we take 10 amps from 9 ah battery

have yet to see a 12v battery with the hour rating just the capacity being 20ah...

Can we say a 1000mAH battery equals a 1AH Battery? Or mAH and AH are different.

50vdc 42Ah (2.2kw) lithium ion battery. runs 50v 3kw BLDC motor how does it work?

I want to upgrade my scooter battery from 7 amp to 9 amp would that damage any components

What's the difference between volts and ah? Why do android phone batteries have an ah capacity while a dry cell have volts? Please enlighten me, I'll appreciate it.