What's inside Makita 40v Batteries? Makita XGT Battery Cells Revealed.

Рет қаралды 8,049

Күн бұрын

Пікірлер: 45

@toolscientist 5 ай бұрын

14:50 whenever you see voltage dropping like that, there's just residual charge on the terminals. Think of them as very small capacitors and your multimeter is drawing a very small amount of charge by measuring the voltage.

@toolscientist 5 ай бұрын

13:05 if the microcontroller was cooked, you wouldn't get anything from the battery checker. Likely the curious owner wanted to read what chip it was.

@toolscientist 5 ай бұрын

Most likely the fuse is blown. Measure voltages where the cells first meet the PCB. Then move the probes one component at a time towards the terminals and eventually you'll find what's popped.

@twaymouth 5 ай бұрын

I believe the xgt batteries microcontroller has the ability to blow the fuses as a last resort in the event of an over discharge / uncontrolled over current event. Wonder if the user was using it with some sort of dumb adapter and over discharged the thing resulting in the fuses opening.

@shawnlachance4427 5 ай бұрын

Lifetime subscriber here!... Love that you include the battery rocket in your intro now. That was one of my favorite videos of yours. Not only did you prove the tabless cells, we now know how to make a rocket!😅 Cheers Thanks for all the great content

@patbird9694 5 ай бұрын

“Don’t cut into a Makita battery cell if you don’t have to” Mr Tools 2024. 😂😂😂

@juniorbucknor1333 5 ай бұрын

They need a slim battery for impact drill, even if it’s 1.5 ah at 40v

@jeffalexander1151 5 ай бұрын

Can't make a battery much slimmer than the 2.0 or 2.5 ah. A 40v max battery utilizes 10 cells, so that limits how compact a battery would be. A 1.5 ah would be virtually the same size as the 2.0 or 2.5, since the cells themselves are the same size

@pete_lind 5 ай бұрын

@@jeffalexander1151 You can use 10440 (AAA) 500mAh, 14500 (AA) 1200mAh or 16340 (CR123A) 900mAh lithium ion power cells . Better is to use 12V or 18V tools if you want smaller tool battery .

@jaywelker5566 5 ай бұрын

@@pete_lind none of those have high enough discharge rates.

@riba2233 5 ай бұрын

@@jaywelker5566 yep. only option would be custom lipo prismatic cells like dewalt used in 1.7ah

@syf13 5 ай бұрын

Hoping they start selling the BL4040F in North America soon. Any idea what that timeline might look like?

@riba2233 5 ай бұрын

Awesome investigative work as always, can't wait for the next part, thanks! 😊

@devinnelson5410 5 ай бұрын

When is makita going to advance battery tech of lxt batteries?

@wrefk 5 ай бұрын

In reference to the wattage for the batteries, as in the 2800w for the 40v 8ah. Thats 70-80 amps, just wonder how much power can the external battery contacts actually handle, the contacts that interface with the tools. I think I've seen videos showing Milwaukee batteries over powering the contacts, just seems like the weak link to me, especially as they get dirty and oily

@toolscientist 5 ай бұрын

I've pulled 150A from Milwaukee batteries without melting them. Melted Milwaukee batteries happen due to vibration making the terminals break contact rapidly. Also the XGT batteries have 4 contacts vs most other brands only having 1 or 2

@wearsjorge55 5 ай бұрын

Its definitely a weak link on the milwaukee tools, it seems to be an issue on all their batteries. Only time will tell with the 40v stuff but I'd wager it'll be fine unless they start putting out tools that pull more power than that new jack hammer

@riba2233 5 ай бұрын

that is why they made a new battery platform, xgt has bigger contacts than lxt, milwaukee, dewalt etc...

@chimairanl9043 5 ай бұрын

I have mostly 2.5Ah batteries. Diy er and don't use my tools that often until now. Will get a stick vac or something to get more use out of them. It would be a shame if the batteries got less and less power because of not enough usage. Thanks for the tip!

@k.squared 5 ай бұрын

As I mentioned next to the earlier video, BL4025F has been discontinued and will not be coming back (according to Makita Lithuania, personal message; others could send similar inquiries as well to their local Makita representatives). "Discontinued" sounds strange, because they were not on sale, but, in fact, at least one German website was selling them for a while (Loechel-industriebedarf - still is, 8 days delivery, 163,49 EUR ;). Not sure if they would deliver anything when ordered, however, online stores do contain errors like that.

@riba2233 5 ай бұрын

Interesting, they haven't even been properly launched.

@toolscientist 5 ай бұрын

@riba2233 I'm sad now. Hopefully it's just some sort of double-bluff due to them accidentally leaking it.

@riba2233 5 ай бұрын

@@toolscientist yeah I really hope it will be a real thing!

@k.squared 5 ай бұрын

@@toolscientist They included these batteries in multiple printed regional Makita catalogues of various designs. That was not a leak, they should have been on sale a long time ago, imho. On the other hand, even if the explanation I was given by the rep is correct, they could still (probably) release them looking identical to those pictures, but with something slightly different inside. Who knows... Makita, at least here in LTU, has terrible PR. Two of their latest promotions are top-grade BS (exist only "on paper"), and their pricing is all over the place, to put it very mildly. I sincerely can't understand American complaints about how expensive Makita is there, because they at least have *actual* sales. And to top it off they're not leaving batshit crazy russia/belarus. I, personally, regret going for their 40V platform.

@nicoquattro3950 5 ай бұрын

@@k.squared Im from Germany, i could order one just for the heck of it. But, Im sure when I order it i get an email saying ''not available, 8 days shipping is just a phrase''. Or should I? Maybe Makita already has another battery technology in the works and they go even one step further than just tabless cells. But i doubt it

@kodrakfk 5 ай бұрын

The gas expelled when burning a lithium ion battery is very dangerous to health and fatal in small quantities, Hydrofluoric Acid.

@KeijonAutoVuokra 5 ай бұрын

14:20 Iirc Makita owns the patent for this style of protection

@toolscientist 5 ай бұрын

Bosch and some Milwaukee do this, too. Definitely the Dewalt flexvolts. Nearly everything a tool company releases is covered by a design patent to stop people from just straight up copying their design.

@bobdebouwer7835 3 ай бұрын

Can these batteries be used for other things or do they communicate with the Makita tool and prevent other uses? Does anyone know the max continuous discharge amp rating? I need a small and lightweight 36/40v battery to power an electric motor. The easiest way would be to use such a tool battery. But I need to be 100% sure I won't get thermal runaway due to asking too much from the cells....

@goforbroke2 5 ай бұрын

That opening scene.😂

@nathanpennell1587 5 ай бұрын

Do you know if dewalt is using any tabless cells in any of their batterys? How could you tell without pulling one to bits?

@riba2233 5 ай бұрын

not yet but they have announced them

@tableshaper4076 5 ай бұрын

I heard if you squish the battery in a vice nothing happens? Maybe worth a try?

@isaaccaris9530 5 ай бұрын

The new tables cells on batery is prove on the drill or grinder . Bosch got the same product tables cells an they promising 60% more run time

@Sir-Kay 12 күн бұрын

Have you ever tried replacing the cells inside LXT 18v Makita batteries? when my battery becomes old, do I just replace them with Sony cells & solder back the OG bms back in place or get the 3rd party bms + battery casing they sell on Aliexpress & just solder on the Sony cells onto that? secondly, if the OG cells inside have a lower capacity say 2000mAh, can I replace them with 2500mAh or even 3000mAh cells provides I still keep everything in series like the way they are? All I want to do i bump up the capacity without tampering with the voltage, what do you think?

@patbird9694 5 ай бұрын

Over two grand worth of Makita batteries

@patbird9694 5 ай бұрын

First

@ToolsAndStuffOFFICIAL 5 ай бұрын

3rd actually.

@АлександрЕмельянов-ч3н 5 ай бұрын

Здравствуйте!А не подскажите,когда у макиты выйдет ударный гайковерт на 40в с посадкой на 1 дюйм,а то конкуренты наступают на пятки. Заранее благодарю!!!