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Only thing I would add is the cheap Bench PSU's are not always accurate on the display. My 20A shows 3.65V on it's display but when I check with a my works Fluke multimeter (factory calibrated annually) it shows 3.68V at the croc clips. No big deal on cells this size but something to watch I would trust my multimeter over the display of the bench PSU. Thanks for the video.

good explanation

Very helpful, as a beginner I appreciate this very much.

Wondering do these not need to be compressed when top balancing or can you compress once they are fully charged and connected in series ? some say to only compress once full some say to compress before the are full TIA

Thanks guys, very clear explanation

BTW: its prolly obvious, but you can use the Gnd for a voltage divider say 30v from +- and insert 2 100 ohm 50 watt resistors - to gnd and + to gnd and get 15v at center tap gnd. Good for audio amp supplies, But I would get the 60volt 5 amp version. then you get +30,-30

Quit tapping the equipment while being mic'ed.

thank you this is such a hugh help dude.

I did the short circuit to adjust current but it burned the power supply . Any idea why this happend? I am waiting for a replacement

Great video

But What Will hapen if You short them at maxium voltage Will The Home Breaker Pop?

it takes several seconds to turn off after switching it off because it has resistors and capacitors that protect it when there’s a surge or drop in power.

I know this is an old video but just getting into the stuff so this battery break is it the equivalent of three server rack batteries

Could I use this to charge a gen 2 prius module instead of a hobby charger?

Good information

Good explanation for beginners like me

I found your video via Perplexity 8-) which is cool to have a human explaining. Thanks for showing the setting of ceilings values, and charging that li-on battery which I was trying to do to revive a death dewalt 20V pack.

Great info. The manual was more than lacking information. Especially on set up. Is there a way to set s fixed output for both Voltage and Current? Let's say I want to supply a constant 36V at 8A, could this be achieved?

Hello. Late to the game, but I am a learner. An amplifier board needs +/- VDC. How does a bench PSU supply this? Are there + and - leads/outputs? Thanks!

i just got mine and thought it was not working, it seems to have a mind of it's own and starts to output when it's ready, i have the white Ikokocater SPPS C3005, i set the voltage and current to what i want and push output and sometimes in about 10 seconds it starts, do you think it could have an internal program that checks things and starts when it's ready or is mine defective?

No. Use an active balancer. Much better.

me: my psu is broken this guy: you're an idiot. it works just fine

Best power supply for cockcroft walton generator 👍

My build 4s 2p sir and the battery next to negative main is the one who charge full 1st then next one beside the main positive is the 2nd to charge full and the main negative and main positive remain to 3.37v. My active blancer is 4s 5a and 60a discharge/30a charge current bms. My problem is i can't balance them when charging on solar panel before i assemble them i do top balancing 1st. Hope you can help me or i will just follow your advice which is 2 bms

great instructional video, thank you

Finally ! A clear explanation on how to use these things properly and safely .... thanks brother ! 😊

Hello @TheWilltoBuild. I have 42 battery modules from an old NISSAN LEAF with 3.2V each. What kind of BMS should I get? Would one of this bms that you installed fit this solution but with less cables? Imagine 21 cables connected to groups of 2 modules? Or should I use 1 cable per module? Thank you in advance

Great video This is exactly what I needed.

Well said very clear and easy to understand. Thank you.

good info on PSU but very unsafe use of a Li-Ion cell , the maximum V & A's connected to a cell or a bettery (Cell Assembly) SHOULD NEVER ECCEED THE SPECC's in some situation it may support it for a period of time in other's it may be catastrophic VERY FAST . Thank you for the psu info , cheers and i suggest you be more carefull with Lithium in most of all common form we get it as DIY'ers

if I set mine on 14V and connect it to a battery it automatically jumps into CC 🤦🏻‍♂️🤦🏻‍♂️🤷🏻‍♂️ HOW does it stay in CV?

From someone who is familiar with these, I have seen on AliExpress they have different prefixes, some are NPS, DPS, WPS and many more. I'm thinking about getting one for electronic repairs, mostly phone and laptop boards. What is the difference between the NPS306W and DPS305U power supplies?

How to calculate a single 3.65 V cell charge and discharge state into percentage? For an example if want to charge my cell 90% only what should be the max voltage of a single cell and if i want to stop discharging on 20% balance power, what should be the minimum voltage. What if a room temperature is getting 30 Degree Celsius max in summer where these cells are installed and what if a room temperature is getting 0 Degree Celsius in winter, are these cells required any extra care while getting used as a home backup?

All the videos I've seen so far does not talk about the P- wire and its just dangling. For a newbie, I'm really confused about this wire and where it goes

Not very intuitive at all. Why wouldn't they just have it display the changes even when its not hooked up :P I can understand if it needed to read the load first but still...

thaaaaaank you so much. Very helpful

Nice video 👍 I have a 12v car battery charger. Can I put 4 in series and use that charger? Then I don't have to buy a power supply and a 4s bms or anything else.Thanks 🙏

Super useful 👍 thanks 🙏

Nice 👍 they say you are not an expert untill you can explain it simple, you just did ! Thanks 🙏

I know it's an old video, but it helped me get my head around how to use this. I'm using kind of the same purpose as you with lithium cells. Mine have dropped to 0v so bumping them. See if they are any use so putting them to 3.6v and testing the resistance. I'm not very good with electronics so doing this in the garage. I have built 10s4p packs and 12s3p for my electric skateboard but with new cells. I managed to get hold of couple hundred or so recycled cells see if i ca do something with them. Thanks for the quick video

Hey! Can you tell anything good about QSO (Shenzhen Qishou) prismatic lifepo4 cells?

I was going to buy 48 eve cells from 18650 battery store and they are telling me that there is no need to compress them, but did put anything in between the cells or not have heard anything about orion bms thanks

Instructions with a BMS?? You are either joking or you purchase your BMS from an American company (if there is such a thing). I use either JK or JBD BMS and never got any directions.

What is on your gloves?

why not to just charge one and then connect rest in parallel with it. Leave it for a day , all will balance themselves. :)

I just got the one on the right, but when I connect the positive and negative I get quite the spark. Is that supposed to happen?

Great video man, it took me 5 or 6 trys with other clips but as soon as u spoke I knew exactly how smart u are and how articulate.😊

0:54

Can i charge my four lifepo4 cells, connected in series....with my lithium specific 20Amp battery charger? They've been sitting unused for 3 years since i bought them. 3.5 and 3.4 volts each . Finally getting serious about building a battery with a 200A smart BMS. Thanks

What about p- will you connected to the battery positive