Kudos! Your presentation is a dramatic masterpiece and technological teaching both at the same time. Further more it is a double barrel impartation of your skills showing how to fix a dead battery and how to make the tool to fix it, while presenting it in normal daily actions style non verbally, (pantomime). Thumbs up.👍👍

Du bist ein Genie!👏🏻👏🏻👏🏻 Ohne Schnickschnack auf den Punkt gebracht 👍🏻 +1

Pleasant to watch creative artistry in the works.

This is what all our DIY projects look like when we see a solution and make it a reality.

Engineers - think it, build it, make it better.

Never "add" new cells to an existing pack. Always throw each and every one out (or re-purpose them as single cells), and replace the entire packet. These cells that haven't yet died, are going to die sooner or later, and then, you'll have to open it up again and again, creating an endless cycle of "adding new cells to half-used ones"

Also, the "bare transformer" method is a surefire (kek) way to have yourself a lithium fire on your workbench :v
These 18650 casings are thinner than they look. Yes, it might be cheap, but it is just not worth it in the end. The lowest effort "spot welder" would be to have an SCR controlled with an Arduino, and then to set the pulse duration via the code (or implement an encoder / buttons & a screen to see the set value, if you have a bit more money to spend), and then have the Arduino turn on the SCR for a set amount of time. Then, have some trash cells at hand (best to discharge them completely via a resistor, something like 100kOhm or more will suffice, just tape one lead to positive, the other one to the negative terminal, and leave until the voltage drops to 0V). Then, try your spot welds on these, because when a cell is completely discharged, a potential failure won't be as dangerous as it would be with a cell that has the nominal 3,7V (but they still can be dangerous, so a metal bucket with sand is very, very much advised).

Content like this always feels refreshing because it reminds people that progress takes time.

This is the first video where they didn't make it look super easy to take the second winding out. It took me for ever to do it

thanks for not adding annoying music  👍

A very fine and useful one, with some pink panther flavor!

Muito bom 👏👏👏

Love it and no talking, thats great.

Sempre tempo investito bene, quello speso per guardare un tuo video.
Complimenti Maestro.

Bravo! Simple and effective!

My man, I love the old school approach to a modern problem, you bring me memories of my childhood hood with my old man.
The problem is this approach would be perfectly fine for anyone born up to the 80's but the generation that is most likely to need a use for it, unfortunately barley knows how to cross the road without getting hit because their faces are plastered to their phones.

An updated video with some sort of timing circuit would make this almost fool proof.

Dziękuję za naukę

thank you

Лучшее предложение для сварки литий-ионных АКБ . Никаких заморочек типа микросхем и кнопок включения. Конечно, надёжность такого аппарата может вызвать у многих кучу нареканий, но поскольку нужда в его работе возникает раз в пять лет, то и решение самое простое и на мой взгляд оптимальное из всех что я видел на ютубе. 👍

I like that buzzing sound

Buen trabajo, pero yo sugiero cambiar todo el kit de baterías , así la carga será pareja ,las usadas no sabemos que tiempo de vida les queda., gracias

I wish I had a neighbor like you 👍🏼

Это не сварка, а пытка ячеек. Лента не должна нагреваться до свечения. Импульс должен быть 15-20мс.