You've answered more of my questions in 5 minutes then RPS Solar did in the past 2 weeks. After getting conflicting and contradicting answers from them I finally just gave up and started researching this for myself. Thanks for an easy to understand explanation.

Thank you for very simply and precisely answering all of my questions and correcting my misconceptions. Thank you very much :)

Nicely presented in a very clear and concise manner. There are a couple of KZfaq content creators who need to view this. There are some that have these concepts SO wrong and it is spreading false information.

Yup! just what I needed - brilliant video

Good explanation. I understand it's not ideal but I have a few optimas that are different capacity. Now I know where to start and implement safety precautions when locating my bank.

I just need to say thank you for the amazing video. Well explained!

Within a minute of you talking I spontaneously Subscribed.. Great explanation and well delivered words.. Keep it up Sir..

You are obviously on track for a successful/lucrative career, whether it’s in a more traditional engineering role, teacher, or KZfaq creator… it’s appreciated when we get this type of content that caters to small financially constrained tinkerers, before high end sponsors are included & most resource constraints are merely a memory.

I agree most of thinks you said but thinks to consider in connecting batteries in parallel also age and capacity effect. - When you connect different age batteries in parallel older batteries will drain the newer ones over time. - When you connect different capacity batteries in parallel, smaller batteries have longer time on charging absoption and bulk. This doesnt have too much effect on 100Ah with 105 Ah battery but it will destroy fast 100 Ah battery with 20Ah battery. - Also different brand batteries even they have the same chemistery they have different plates and different charging charesteristics. This will also increse the chance of 1 battery to supply other battery. - Also when you are discharging, if the batteries has huge difference in capacity and you pull near the limit amps always biggest one tries to compansate the smaller one. This will kill the big one because when you stop discharhing the big one will compansate the smaller one and big one will make work harder which will. Batteries in parallel work as "weakest link" and weak ones damage the strong ones over time. =) But of course if you have batteries lying around and one is not enough, you can parallel them like this and take the most juice out of them. Better than nothing =)

Helpful demo display, thank you. Great teacher.

Very informative! It is what I needed to know! Thanks

Well explained, thank you.

really good video

Superb Video, you answer all my doubts.

Be😊st explanation I've seen brilliant.

Very helpful. I connected 12x2 volt batteries in series = 24 volts. 8x 1000ah + 4x600ah. Knowing it's not quite right, but not knowing exacts. So now I've got buy more of the same ah to match. Hope I can fix before a fire!!

Thank you for greet content

Well done Interesting and informative Thanks

Great video thanks. Exactly what I wanted to know.

Excellent, thanks.... I'll get connecting my 12v lead acid batteries in parallel.....

Thanks for the info

Great job.

Hi, will a 6V 208Ah battery and 5- 6V 225Ah battery connected in series for 36V be a big problem? I'm having trouble getting a direct replacement for a bad battery on my golf cart, and I don't really want the expense of having to by all new batteries. I know you said capacities should be the same in series, but I'm thinking the older 225Ah batteries may have some degradation any way. Thanks

I have a lift that uses a 24v system, it runs off 2 x 7ah batteries sealed lead acid. The charge board on lift is faulty so i have installed a 24v 5ah charger to the batteries. It trickle chargers but i can switch the charger off when its been on overnight. Will leaving the charger on constantly damage the batteries... and by using the lift motor with the charger turned on, is this going to damage the charger? Using 3way wago connecto to put charger in the system.... red on1st batt and black on the 2nd

Nice info to know now that I'm planning to do the same thing.

This explains why I'm getting hot batteries in the solar setup. This is a 5 year old install. 2 strings 8 x 6 volt deep cycle flooded lead acid batteries making 1 array of 16 6 volt batteries at nominal 48 volts. The "hot" batteries capacities are now very low and are discharging and rechargimg at a much greater percentage of their true capacity than the others in the string. The 2nd string was unable to support any load. Dropping from resting voltage of 52volts to zero in seconds the moment a load was applied

Good morning I have 2 packs of Lifepo with the same voltage but 1 is 24 volt 1120 AH and the other is 24 volt 200AH I would also like to put // both I don't know if a fuse is needed between the two? otherwise my converter is a 4000 watts to 24 volts what do you think about implementing // the 2 packs? busbars between the 2? THANKS laurent

Awesome!!

Thank you for the information

WOW! This is the first video I've watched that's very easy to understands. I have one question though as I have heard conflicting info. Can I connect two 130 ah Lead Acid with a 105 ah Lead Acid battery to have a total of three batteries with a combined amperage of 365?? Thank you so much!

Is it possible to connect three strings of batteries in parallel (all AMG) 2x100Ah (24 Volts together) in series plus 2x150Ah (24 Volts) in series plus 260 AH (24 Volts) in series. I would like to equip each row of batteries with a voltage balancer. Is this a good idea for a photovoltaic energy bank? Best regards, Gabriel

Very nice thank you so much❤❤

If you think about it you are wrong!! You can connect different types together!! Everyone knows you can connect a power station which is lithium to car battery which is LEAD! I have been doing this for years connecting a lithium battery to LEAD!. It can be done with a solar controller! Connect the reception battery first to the controller battery terminals! Then connect the other battery to the solar input connectors! Flow will only go one way from the solar input controller to the battery controller!

Sorry I have a question, I need to kee my truck battery charged, but in that truck I also have a tennis ball machine that has a battery if different size but both have the sane chemistry. Would this method work to keep not betteries charged with one solar panel Thank you

So is lead acid the same chem. As gel lead acid?

Good explanation❤❤❤

Thank you for this great content! I have questions, Would that be okay if I connected 12v 35ah car battery with 12v 8.2ah ups battery? I'm asking that because my smaller battery is already degraded even though it has 12v it doesn't have the capacity, So even though I said 8.2ah according to the sticker it may only have around 5ah I guess. Thus if I don't mind about this smaller battery's health would that be okay to connect 35ah battery to this combination? I'm connecting these to a 1.2kv computer ups.

so im building a 6s 24v battery bank and each of those batteries in series will have batteries connected parallel to them would it be ok than to use batteries of different capacity in the parallel array? whatever its called.... i was going with a 6s but 6 in p as well but messed up and bought 2 different capacity batteries. as long as i keep each array in parallel the same capacity as each other i should be good right? be just one battery of much lower capacity at the end of each.... like a 5kma difference. Its my first time..... if the explosions is worth the risk you take it. for science.

Not a good engineering practice to connect batteries in parallel for low internal impedance batteries. It is not easy to ensure that the two batteries are in identical state of charge or voltage at any time.

Great content! However, my question is: Would there be problems if I connect an AGM 180AH 12V lead acid battery with a GEL 100AH 12V lead acid battery in SERIES (to give me 24V) then connect a battery equalizer/balancer to ensure that they charge and discharge at equal voltage?

I have a 120 ah and a 130ah batterys can i hook those up

Obrigado, você eliminou todas as minhas dúvidas.

As someone who has no clue about this stuff, I have queries that I would be grateful for answers to. I have a motion sensing light that requires 4x AAA batteries mounted in a single line. As it's not an important light to have, I just use old 1.2v Ni-MH batteries of varying mAh ratings (mostly 900 with a couple 500) that don't last long in the home phones anymore. Based on your explanation, am I correct in saying these are connected in series and therefore is not recommended to mix capacities? Having put 900mAh cells on each end with two 500's in the middle, the light flickers. However if I put the 500's on the ends and the 900's in the middle or alternate with 900, 500, 900, 500 (also 500, 900, 500, 900), the light is stable. I assume this makes no difference to the damage it could do to the cells?

Good explanation very helpful, may I ask what is the yellow inline fuse you are using in your system ?

Sealed lead acid battery and flooded lead acid battery can mixing them together in parallel?

I have connected agm batteries @48v parallel to lifepo4 batteries which Re the same 48v and have had them working for 3yrs now, I've also recently seen video from the off grid garage where he paralleled a 100ah(5kw) and a 280ah(14kw) and both ran successfully, what u people should explain is that if ur a novice at this stuff and don't understand batteries it's wise to leave it to the pros

Can lead acid battery be connected together with a mantainace free battery in parallel?

I have a mightymax 100ah battery paralleled to a group 35 optima yellowtop. Its connected to my car stereo with a battery switch between the amp and the group of batteries. Been working for over a year and a half with the occassional charging in my garage. The problem is if i dont drive it for more than 4 days, voltage gets to 12v. Is it because the mighty max or the yellowtop is charging each other? The mightymax is nearest to my amp and the yellowtop is in the engine bay for starting. Does starting the car drain both batteries?

All the batteries I have are 12 volt lead acid, and i ha e some that are 12ah and 18ah, do yall think it would be good?

What if you have 2 slightly different capacity batteries in series but you only charge through the smaller one?

lets say i have old batteries.... they both on label are 12v 50AH.... but one of the batteries from using have loose the capicity... can i wire them in series because on label are printed 12v 50ah on both batteries?

Is there a battery isolator?

Cool

Hi, so useful. In case we have the Active Balance, can we connect series 50Ah 12V with 100Ah 12V for real life using?

What if the second battery is a supercapacitor?

ty i got 120 ah want to put a 100 ah to gether both 12 v same brand so you saying i can conetted it to gether to make 220 ah battery

How bout low voltage battery mix in new one?

The internet tells me you can not do this. the smaller battery will drain faster than the higher capacity. itl go empty while you still draw from the higher one. and then over charge.

Wat een cutie 🥰

gratulalok a videohoz de lenne kerdesem hogyan kell bekotnom /// szabalyosan /// 1 darab 16v supercapacitor baterry es 1 darab 12 v gel baterry koszonom a valaszt

Dead battery

🤣 whole video started off with a strt8 up lie, plenty of videos on here with batteries with different chemistry. I have a flood lead acid and agm and lithium all in da same battery bank.

bro what if we have same lead acid batteries with same amp and volts but the one is old(almost 2 years old in using but still have good backup) and the other one is new can we still connect both in series?