MegaCellCharger - best way to test thousands of cells

[@ilyas5708]

Do i have a million cells that i need processed? No. Do I think this is cool af and want it anyway? Yes.

[@iwinrar5207]

Yea. But not sure I wanna invest 250$ into it even tho it is bad ass lol

[@rp9674]

Do I ask m'self questions, yerp, do I answer them too, hells to the yes please.

[@Phelper99]

How about an 8 cell for 60% of the price?

[@iwinrar5207]

@@Phelper99 that they would sell me lol

[@TurboTechieSystemsIrving]

I have had 2 of these for almost a year now. Bought one directly from them when they had some extra stock and second I bought off a guy on Facebook that couldn't get it to work. Ended up being a bad flash that Megacell fixed for me. Both chargers have tested over 1k cells each and besides the power supply that was sent with one of them going up in a puff of smoke one day they keep running. I would recommend getting a 30A 5V power supply instead of 20A as they recommend. The 20A gets hit pretty hard when all cells are charging. Also the 30A also runs cooler. I would still put fans on each power supply like I did to keep them cool. I use an old I5 gen 3 laptop for the charger software. Prints directly to a Dymo 450 Turbo when the cycle completes. Each label by default has a QR code that you can scan using a webcam or 2D barcode scanner in the software and it will take you to each cells data and graph. Also when deleting cells out of the database the scanner makes it easier. Also there is a web-based interface as well for basic functions and has a nice dial gauge view. I keep the webpages open on separate monitors so I have a constant view of whats going on. It also looks cool.

[@FixItScotty]

The software automation to configure what happens when you put in a cell is the best thing ever!

[@sccsuk]

Its not DIY if you can't make it yourself? when you have to buy it its a product? If I'm wrong and its an opensource design then please link the source.

[@BrianBoniMakes]

Is there an open source fork of this project? I don't like the idea of a software license for a product that was "developed by a close connection to the DIY community".

[@john_in_phoenix]

You could always run Windows as a virtual machine, but with the price Apple charges for memory you can buy a cheap Windows machine. I use a headless i3 NUC and remote desktop. Very useful product if you have a lot of 18650 cells to test.

[@BrianBoniMakes]

You can run windows on a Raspberry Pi, bet the requirements to run a battery charger aren't too much.

[@LADETROIT]

Too Cool . Cause I was just watching the old 2018 best charger video last night. Now I will save those funds for This

[@rhoemberg1969]

Nice build Alex,I need to build a set charger from pcbs to test out my storage recycled ♻️ 18650's the capacity and charge numbers,this is a cool build .that printer cuts out the label and Repaker .😎

[@GiddeonG]

How about the option of discharging to a battery bank or a big lead acid so you could recycle (pardon the pun) the power instad of heating up the room with it during capacity tests? I was designing something very similar to this myself a while ago but I can't really get into a power-wall project for some time yet.

[@TurboTechieSystemsIrving]

This has been a feature that has been asked before on one of their other videos and I believe it has been taken into suggestion if I remember correctly. And I agree this would be a nice feature.

[@Sparky400]

Agreed. Wouldn't need to be spesificaly lead acid but yeah arround that range you could set peramiters to match what ever bank you have. I hate wastage and although this is justified I feel it's something almost too easy to improve apon.

[@VulcaNtGoF]

Dang... Wish i had known this thing existed before i built my own... I'm using an ISDT Q8 with a homebrew charging sled that i built from dual 4 cell holders. Nice to know that there's something out there professionally done, but so close to home made.

[@xmtxx]

Wow this looks great. Too bad I haven't enough batteries to need it. :) On detail that would have been awesome, is an output power outlet for discharging. So that you can charge other batteries with it, you'd use less power overall.

[@jehugarcia]

Cool idea

[@Sparky400]

I want this too. Wide enough voltage range and preset peramiters for 12v lead acid or number of lithium cells. Issue I see is you would either have to power it from a battery or have a back up discharge system. That said having a heating element there would be times power from one cell could be put into another in the same unit.

[@reelfpv]

We need this for 21700 cells please!!

[@LADETROIT]

Would be nice if it was spring loaded for AA cells. Does anyone make AA spacers?

[@eutavi]

Proud that this is from Romania!

[@dennisstaats586]

With today's Euro conversion (1.16 $ to 1) it's almost $300 once you "get out the door". Perhaps the Euro to dollar conversion was figured in reverse? Regardless, the device is not essentially four times that of a typical four cell, eBay-sourced charger as the manufacturer claims. This appears to be a well-engineered, great device. However, it doesn't "sell well" to promote a business with what appears to be a "questionable" pricing claim. Jehu, please correct this.

[@cutty02]

Are these cell projects dead now that Lifep04 cells are so dirt cheap? We can now get grade A prismatics at around $100 a kilowatt.

[@hadianwar7888]

Hi from the other side of the world Jehu. 🇲🇾

[@webster7567]

Hello, I have a specific question that I'm sure you can answer thanks to your experience. I have built an electric quad with an 8000W motor. Unfortunately, the battery I bought is not designed for this purpose because the cells (LG cells with 7A discharge current in a 20S9P configuration) cannot supply the necessary current without damaging them. Is it possible to install a second battery (20S~10P) with high current cells (Sony US18650VTC4) in parallel to increase the performance or would the internal currents between the high current battery and the "normal" battery not be controllable? Thank you for your answer in advance.

[@tilmaen]

Could u use the mega charger with nimh batteries if you had a matching receiver to put them in? Ergo: can the hardware/software deal with other chemistries?

[@DigitalIP]

It seems to only be for 18650 cells

[@Sparky400]

Yeah. Shame but it would need a more expensive battery holder or am adaptor. If you could set the voltage range maybe you could use it for that without any firmware changes?

[@DigitalIP]

@@Sparky400 It uses TP4056 modules for charging/protection so its unlikely it can be used for anything else that doesnt have the same voltage ranges as an 18650.

[@Strange_Brew]

I buy only discontinued grade A cells new but it would be great for balance charge before building a pack.

[@psycho2soundz]

Would be even better if we could test different sized cells and shapes etc.

[@ruftime]

Megacellcharger has options for other cells, and they are mentioned in the video😎

[@psycho2soundz]

@@ruftime I haven't seen any compatible but if you know link me

[@Nightowl_IT]

Do you have one for LTO cells? Can you rework those to at least charge and discharge LTO cells at 1C? How much does it cost?

[@Sparky400]

Only thing this is missing for me is I wish this would dissipate the extra energy into a battery bank and charge from it. Hard I know but I feel not impossible. Would need to use buck converters and a much wider input voltage.

[@5UPRAH]

Nice piece of kit. Great functionality but it looks very DIY and does not look like a finished product - especially not a $360NZD product! Half that cost and it might be priced ok.

[@jehugarcia]

Developing electronic products is costly, especially niche ones

[@thomasmoore4576]

Are they going to have one for the 26 650 batteries and others

[@rogernelson6535]

My thoughts exactly. I've got 3- 96 cell packs that came out of a bus with A123 26650 Lifepo4 batteries. Too bad it only does 18650 li ions. Li ions are nice to have but for me,Lifepo4s can handle more recharge cycles even though they are a bit bigger than li ions. A pack is good for years instead of one maybe 2 yrs for li ion

[@thomasmoore4576]

@@rogernelson6535 yeah my 5 packs that I have with the 26 650 and the pcbs that I got from jag35

[@TurboTechieSystemsIrving]

I have seen some 3d printed adapters on one of the forums that you can make but the adapters do block off the use of some of the slots. Also by using you wont have a good resistance reading, as you are adding resistance lengthening the actual charge circuit. But a lot of people measure resistance with a separate test device anyway.

[@jodydewey3516]

Interesting. Doesn't doing like 100 cycles kill your cycle remaining count?

[@gerardjachymiak5822]

yes a bit but you test 1% of new cells

[@hjeffwallace]

@@gerardjachymiak5822 so the idea is to kill one out of 100 as a predictor?

[@gerardjachymiak5822]

@@hjeffwallace no, for example you order 1000 cells from a supplier you have never used. pick out 10 random ones and test them if they are good then every cell is good

[@hi-tech-guy-1823]

- A "printable" Database would be good Printed to the Battery Sleeve (UV Laser or UV Cure Resin Ink - Custom UV Wide format Printer (Direct-to-Object UV Printing) ) QR Code - DATA matrix + Human Readable Values

[@yowajc4266]

Hi, You have very interesting and useful contributions. If you would be so kind, where can I find that battery cell configuration software.

[@IsaacOLEG]

Hello all ! I am wondering if a label printer emulator exists, allowing to use a laser or buuble jet printer. The fact that thermal paper cells erase a bit too soon is not advantageous. I looked for the emulator and did not find one . ANy idea ? Thanks

[@Estoooopid]

Have you upgraded a hybrid car into a plug in hybrid? That be something cool to learn

[@jehugarcia]

No, they day I find cool hybrid, I might be tempted

[@hjeffwallace]

@@jehugarcia I’d really like a hybrid plug-in pickup.

[@Estoooopid]

@@hjeffwallace i places on order for the hybrid ford maverick. Just wish it was a plug-in

[@bluetrepidation]

@jehugarcia Any idea when Gradea will be shipping the headless SBMS Indiegogo pack? It's coming up on a year soon. Thanks.

[@Alexander1560]

Hi. We hit a problem with the headless. It came in later in production and we are missing the main IC's. I am sorry for the delay, but we did not forsee the IC's scarce. We will do our best to solve ASAP. Shipped 95% of the rest of the orders.

[@bluetrepidation]

@@Alexander1560 thanks for the responses. That's all I needed. Let me know when things eventually ship. Thanks.

[@djquestionthis]

Very useful!!

[@f4tboy99]

Are both wall chargers of the same quality? Is one better? Thank you

[@yeshuasavedme]

I just bought 32 3.2 volt lithium iron phosphate batteries. Setting up as 2 sets of 16 in series totalling 48 volts ( they are 260 amphour cells). The 2 rows are in parallel ... the 16 are in series. I was sent 2 150 amp BMS's. 2 questions (1) is this the correct size BMS, if not what size do I need? (2) do I charge them first? I'm booking up to a Solar Inverter. The Inverter is a 48volt system. Does the inverter charge the batteries or do I need a separate charger? Please help, I'm new to this. Thanks!!!

[@d-rokcruise6671]

THANK YOU

[@bj97301]

That's pretty sweet

[@FJB2020]

People are still using 18650's?

[@jehugarcia]

I sell thousands of boards every month so….yes

[@rodstartube]

u can use old laptops to run windows, that task won't need a powerfull pc

[@TauCu]

or just run linux with wine

[@james10739]

It says it's $255 on your site that's to high for me I get if you are looking for a supplier to test them from and have them keep cycling but the rest isn't much of a useful feature to me over they like $20 litokala

[@MDP1980]

Nice 💪

[@WaschyNumber1]

Cool 👍👍 Would be nice if it would be a android app for this chargers ☺️

[@azinfidel6461]

Very 😎

[@Zendukai]

Has anyone checked what the tesla power walls are using, just curious.

[@Sparky400]

Arnt they still the same 18650 moduals that the model S and X use?

[@Zendukai]

@@Sparky400 I have no idea, just curious what sort of batteries are inside these bombs.

[@galax64]

Finnish word "Liitokala" means "flying fish"

[@TannerBugatti]

I swear I’ve already seen this video?

[@rodstartube]

Abusive pricing for an "opensource" device. For that price i'll keep developing my project with individual cell databse logging, robotized label sticking and robotized cell replacement from socket

[@jehugarcia]

Do it, when you finish it send me one so I can review it

[@user-rl4xj1xd9c]

255 usd ? NO!!!!!!

[@MrSeth166]

Second

[@quinnfoster4671]

Mega First

[@diginomad6016]

First