All right another morning, first things: first, let's check to see how our cells are doing this morning. As you know, us uh diy battery builders have some kind of charger wall like this right mike consists of 20 or 10 uh sand, flares and 10 liter collar chargers, and what i do here is i take all these boxes from cells that i am currently testing. So that i can then use them in a diy powerwall right, but i'm testing them. So here we go.

These are all the ones that i loaded up yesterday and now they have the numbers right so 26.58 and then 42, the internal resistance right so um. I usually what i do is just i write on here and then take them off and put them in this box. Then off load, all these and then load up some new ones right. So that's the workflow there, it's okay, there's, probably some things that i wish.

These things would do like, for example. Sometimes i get a new batch of batteries and i'm like are these gon na be good enough? It would be great if these things would have a setting where you can cycle them. It would just cycle discharge charge discharge charge. This for hundreds of times until it would be depleted right or completely shot the battery, and then you would know if it's worth to even use those batteries or not right.

Wouldn't it be great if there was something that we can use, that will do all of this and do all this other stuff. Well, what if i were to tell you that such a thing exists? It already exists, and it's diy and started by someone in the community here it is introducing the mega cell charger. This thing right here is one single charger. It will do 16 cells at a time powered by a 5 volt power supply.

So, of course you know it's charging at 1 amp, it does 1 amp max charge and discharge of these guys. It's got nice little fans in here, and the cool thing is that you can do batches. You can do macros, which means like you. You do basically like set a bunch of instructions for this thing like as soon as you install like a battery here, you can program it to do a bunch of things to discharge the cell and check capacity or to charge the cell and then discharge it and Check for capacity uh charge or discharge whatever the battery is at, so that you can store them right to set them at a at a storage voltage right of 3.4 volts, or something like that.

Another feature is that, of course, you have an app that you can control many of these. I think you know up to like hundreds of these, if you wanted to uh but like here like, i have two of them. These are connected via wi-fi to my network, and let me show you what the app looks like right all right. So here we go.

This is the app the only negative thing that i'd have to say about. It is that you have to be on a windows machine, which i truly truly hate with a passion. But of course i do have to use it for a few apps that are not available on the mac side, and this will be one of them, but most likely you guys are on a pc anyways most people are, and so that won't be a problem for You, but here you go uh. The cool thing is that this uh has a simple mode or simple view where you just get to see the thing.

So very cool thing here is the graphical interface here you could essentially have a screen open up and have all of the chargers just displayed graphically like this, and you can see what each one of these cells is doing. This one, for example, here, is cycling or is the capacity test uh this one is the same thing then the last one over here is, i think, it's supposed to be cycling up to 100 cycles. I have it set up for that right and then um. All these are not loaded with cells, but if you load them up with cells, you can independently set them to do different things like wake them up.

If they're low voltage right - and there is a thing uh like i said - you can set up workflows right here, um on this one, for example, i want to show you how you can do the thing here: right, charger settings, new cell, insert actions. Look at this right, so here's the new cell actions as soon as you introduce a cell to a charger here. It is what's going to do. Lvc right, low voltage, uh recovery then start m cap.

So you know the cell capacity test. Then it will hold for five minutes timer and then it will print a label. That's right! This thing has the ability to for you to set up a little thermal printer that will print out labels and you can set them up with job descriptions and you can pre uh set all that's a bunch of fields that it will. You know job names and you know, and numbers and or probably even well, some kind of alphanumeric uh code that you can put for all of these ones right and then after that, then you can set the cells aside and then once you're building your pack.

This thing even has a feature where it does the repacker thing it tells you which cells of all the cells that you've tested for that one job to use on which groups right and so you'll, basically just go through the little labels that it gives you to Print and to stick them on each cell once it's done, testing them and stuff. So it's very, very, very powerful and it's, i think, what we would all been waiting for for us that we are doing this stuff uh this hobby and we're building some series. You know battery packs using recycled cells right. So, of course, i think this will sell for about 150 bucks or something like that.

It is currently on a crowdfunding campaign right. Actually, the mega cell charger is now available for sale on deepcyclepower.com and alex. The creator of this has made a presentation that i'm going to show you right now. Hi, i'm alex the founder of deep cycle power in this video.

I want to present our testing equipment for lithium cells. We started this project back in 2019, while working on a power wall battery project. First, we bought a few regular cell testers that we found on the market and got to work. We quickly realized how tedious it is to measure the capacity of the cells you want to reuse from laptop batteries, e-bike packs hand, drill batteries and other lithium batteries.

The workflow was to insert the cells press a bunch of buttons and get the capacity test starting wait. A few hours until the price is complete, then write by hand on each cell. The capacity, rinse and repeat this process might sound easy and it is when you do it to a couple of cells. But if you plan on testing hundreds or thousands of cells, you will realize how much time you waste by writing down those numbers being in the software development business.

For over eight years and having a colleague with hardware development experience, we decided to implement a solution to speed up the process. It took us two weeks to get a prototype board ready and software to test the basic functionality. We then shared the idea on a few diy groups to see what people think about it, and i was astonished to see how many people were interested in such a device. The prototype's main features were to test the cell and automatically print a label using a label.

Printer such as a dymo 450, and store the results in a stock management database, but after we built the prototype and put it to work, we found so many more advantages of using the system. Here is the list of features that we ended up. Building into the production megacell charter, it now has 16 cells capacity, software that allows controlling each cell independently. You can set different cycle count, charge or discharge state choose a manual workflow or automate it.

The software uses a database to store the cell test data. It can display graphs of the entire charge and discharge cycle cell internal resistance and plotted data of each cell's temperature. During the process, you can calculate the packs directly from the software and it will display which cells to use when building a battery pack. It helps you manage the stock as well.

The software is integrated with dymo 450 and brother label printers speeding up the workflow for tagging, your cells. It has a variable discharge rate from 100 to 1000 milliamp. It detects low voltage cells starting from one volt and attempts a slow recovery. The implemented workflow allows setting the number of cycles and a store voltage.

This feature is excellent for those that want to rest the cells at a different voltage than minimum to maximum to comply with the newest dot and yada regulations. You must have the cells discharged to 30 percent of their capacity before shipping and that's impossible to achieve using conventional devices. You can have multiple devices connecting to the software. We have an enterprise interface mode developed, especially for some of our large clients that control more than 50 devices simultaneously from the same computer temperature, sensors for each cell and the ability to automatically stop a process per cell.

In case the temperature goes over the set threshold monitoring the cell temperature continuously and accurately has been a key feature added to improve the testing process's safety. It has two low noise, 50 millimeter cooling fans with individual heat sinks, to dissipate the heat from the discharging and charging process. It uses a specialized integrated circuit for each cell. This allows independent and safe charging conditions.

The new megacell charger allows the installation of eight connectors for testing different kinds of cells, ce and fcc certified. As you can see, there are significantly more features than we first thought about implementing, but we got these ideas by working closely with the diy community. We spent a lot of time improving the pc monitoring software and the firmware running on the mega cell charger by doing lots of testing and gathering feedback from our users. The first version of the mega cell charger was a bare bone pcb with cell holders and 3d printed shrouds for fans.

After we saw that there are people interested in such a solution, we took the next step. We created a crowdfunding campaign to get pre-orders and afford to pay for injection molding to make a professional case for the new version of the mega cell charger. It was an exciting journey with ups and downs throughout the whole process. It was quite a challenge, but we got this project funded by the diy community through the indiegogo platform back in 2020.

So far we have shipped over 900 devices from pre-orders. Now we are ready to further push this project and sell the devices directly from stock. Lowering the time it takes to receive the final product right now we ship worldwide from romania. We have obtained fcc and ce certifications, so you can rest assured that the devices are safe to use start testing your lithium ion cells using the megacell charger.

Now it would offer you the same 16 cell capacity at the same price as four regular testers, but the features and benefits don't come even close to what you obtain by using the megacell charger. All the orders are shipped within a three-day interval. From the day we receive the payment place. Your order by clicking on the buy now button software license comes included with each mega cell charger.

You purchase to make this a deal you cannot refuse. I will give you as a bonus, detailed video guides and how to replace the battery of a hand, drill a toy motorcycle and powerful flashlight. Once you wrap your head around the small projects, you will be ready for our second bonus, which is a complete video guide on how to build a one kilowatt, smart, powerwall, capable of scheduling for night charging from the grid and dumping energy during the day or work. As a backup source charged by solar panels, here are some frequent questions we get from our customers that might help you when deciding question.

What's this device doing answer it tests lithium cell's capacity to help you find the right cells to use when building a battery pack question how's this different from the cheaper testers available on the market answer. It has a 16 cells capacity, comparing with the usual four cell testers out there, and it has software full of features that helps you save hundreds of hours of tedious work, writing labels and sorting through cells to find the right combination question. How soon do i get it answer? We usually ship within three days with ups or dpd, clients typically have it anywhere in the world. Within a week in europe, it takes two to three days with ups and five to seven days with dpd outside europe.

It usually takes three to five days with ups question. How do i pay answer? Click on the buy now button and follow the checkout steps. We are using stripe, one of the largest payment processors in the world and paypal as well. We also support wire transfers for larger orders, but you will have to contact us for more info thanks again for watching this video until the end - and i hope i gave you all the information you need to make a wise choice - you.