In Texas a 100 degrees is not even a hot day anymore. 105-110 is becoming the summer norm. I wish Flex would fix this battery leak issue. But I like their tools.

Suggested Corrections: - They ARE still selling the non-stacked, leaky batteries (look at Lowe’s and ACME, their 2 largest sellers’ sites). - While FLEX does replace the leaky batteries, they do NOT replace them with the upgraded stacked batteries, and.. - The battery replacement counts towards your 3 max lifetime battery replacements (per battery purchased, per the FLEX Founders’ Lifetime Limited Warranty) That said- great video!

As a proud Flex owner I will say a lot of people are give Flex a lot of flak and compare them to current Gen models of tools like Milwaukee, Dewalt and Makita. The problem ends up being is a lot of the tools they came out with on launch are exactly that.. launch tools or Gen 1 tools, over time they will be more refined and improved. Just like every other company. As far as those batteries leaking, it was a good idea on paper to add the thermo gel to protect the cells from over heating but hasn’t worked the way they intended and they are aware of it and will/did make improvements on it with the new stacked lithium batteries. As well as with each new tool release they have gotten better with each one that comes out. I appreciate how you mentioned that you don’t torture test the tools, that you just use them on the jobsite every day which is exactly what I do and most likely what most people do with their tools. Which it’s the best test of time for the tools. All in all I don’t plan on switching to another brand because I see big things happening from Flex in the future and wish more people would come around.

I’m all in with Makita and I’m constantly surprised how tough the batteries are. Never had one leak in 7 years.

Thanks for the honest review. Just picked up a Flex drill and impact driver combo set for a really good price. Was going back and forth whether to keep it or return and go with Dewalt. I’m like you and couldn’t care less how fast it drills, I need longevity and a great battery. Keep up the great work!

lol i have had 3 5.0 batteries leak. they were all bought separate from tools, and i never overheated or got them hot. they leak right out of the box

ive had multiple batteries leak but i just cleaned the black crap out of them and now they work just fine i still like flex tools and prefer to use them thank you for an honest review your videos helped me make the choice to try flex tools they make amazing quality tools and i guarantee they will fix this issue they have alot of great innovations unfortunately this was not one of them lol

I am an M.I.A. ( Milwaukee in action ) person but flex doing their thing and the best support. GO FLEX !! wish I had your pack-out system.

I've swapped out three batteries with flex not one was replaced with a stacked battery. Would be nice if they had done that

I’m so happy to hear they are replacing those batteries. The first time I learned about the black sludge I had one leak onto brand new carpet. I was livid that day.

Jon I appreciate your honest opinion on this brand. I watched your first video when you got them last year and I thought at first you just promoting the brand since they have you them. Now watching this video I know you are a honest hard working blue collar guy like myself. Thank you again and I will be subscribing and be looking at your videos and switching from a 10 year veteran with Ryobi commercial / industrial electrician to Flex. 🤠

Thank you so much for your info on the batteries. The latest tools I got are the sander and the router & and am very happy with them. I have 16 of their tools & noticed 4 batteries are leaking. Because of that I felt discouraged about using their tools THEN I watched your KZfaq video. I felt so relieved! Thank you!!! By the way, Flex has come out with a TABLE SAW. They'll release it soon. I saw that on Tool Review KZfaq channel.

I bought into Flex ONLY because I found a killer clearance price on a combo kit at Lowes. I'm VERY glad I did find such a deal, otherwise I would have never invested in this brand at full retail prices. These are AWESOME tools, with tons of power. Now I've since purchased the Reciprocating saw, Circular Saw, and angle grinder from sales at Acme Tools. I do have one battery leaking now, and I guess I'll see how easily they warranty that as all of my tools are registered. One thing I'm not gappy about at all is the fact that even though its a "Lifetime Warranty", you're only allowed three battery replacements. Barely 3 months after purchase, l have a leaking battery. So now for the rest of my life, I'll only get two more battery replacements. I'm not exactly happy about THAT part at ALL.

I've got a bag with 22 dead Flex batteries in it. They replaced them all, and replaced the replacements. I think I have 7 that can't be replaced again. Once the gel leaks out, and makes a mess, they can only be charged a couple times before they croak. I had batteries leak from just sitting tools in the sun. They can't handle Texas summers.

Much love homie🤘💯

I wish there was a FLEX 24v vs FLEX 18v comparison, but I don't think that will happen as they separate the markets. But it would have been really interesting to see the difference and compare them.

I agree I agree 100% with you I have the same issues with cheap Milwaukee guys at my job site

I was about to buy the flex angle grinder until a lowes employee told me it's not a good idea. Mainly the recall on the batteries. No one is buying the tools. I was glad the salesman was honest. I was looking forward to the grinder because it has a variable speed, and it is super light did a little digging and found out the compa y was bought by a Chinese corporation... it explains why the quality dropped

I've been searching for you....not 'you' specifically, but the voice of a contractor that has worked his perspective ass off, having experienced tools that break in the middle of the Job, at 3:30 in the afternoon, and you know you can have the job complete if everything goes according to plan, by 6:00 at the latest, only to have that critical tool die. No tool manufacturer wants their name tied to that experience. That being said, the Cornwell tool guy doesn't carry FLEX, (or I'd already have those tools in my own arsenal.😎) I am however on both Milwaukee FUEL Platforms. I don't own any of Milwaukee's woodworking tools, nor any of their new 'Forge' batteries. I do like that FLEX threw in their lot on pouch cell batteries instead of the 'old' lithium cell packs. I'm pressed when a successful contractor takes time out of his busy day to tell others who may be considering the purchase of a new tool to replace the old, but working ones.(I'd still ride around with the old, but still working ones for 6mons, or a year, until the new guys prove themselves as reliable as the crew.🤠)

I've actually had one of the stacked batteries leak on me. Flex warrantied it out since I had it registered. They also mentioned the fluid is there to help keep the batteries cool and they said it was fine to still use them.

yesss bruhhh we need a mitersaw!!! but yeah had batteries leaked but still work jus fine so i wont even be replacing them unless they decide to crap out but havent yet!

For anyone viewing this in the future or presently… flex has fixed this issue. They did a recall on all non stacked lithium batteries at lowes, so every kit and individual battery that was not stacked lithium was returned to chervon. I don’t have a clue why acme tools is still selling those kits, but I wouldn’t buy anything that isn’t stacked lithium unless it’s the compact drill or compact impact driver. Those batteries are fine. The recall happened about 2 months ago and for all of you who do have battery issues they will warranty them out for new ones. Seems like a small bump in the road for a great tool brand

The very first Flex tool set that I bought had three batteries one battery leaked. I called Flex they replaced the battery, it was at my house within 2 days. Flex is the to go to tool for me, if they make a tool that I need I will purchase it over another brand.

That’s exactly right. I don’t care if your tool makes 164 ft lbs and mine makes 149 I just need it to work all day every day no matter the temperature or if I drop it or get it wet.

I have three 2.5Ah and two 5Ah batteries. One of the 5Ah batteries developed a visible leak. I opened up the battery to clean it out, and it was a mess. The issue is some phase-change coolant material which literally melts like chocolate. This material is corrosive, as evidenced by looking at its effect on the cell connectors. I opened up all my other batteries. They ALL exhibited melting, in various stages. I removed the bottom layer of this material but there is also another layer on top of the batteries and in between (5Ah) which are unreachable without a total disassembly. Even if your batteries do not exhibit leaking, the odds are the process has started if you have one of the older production units. One of the 2.5Ah batteries (which I never even used!) flashes all LED’s and cannot be charged. It was one of the most gunked up ones, so I’d have to believe this material is likely harmful to the battery if it seeps into certain areas.

A lot of people have been saying that FLEX batteries leak💯

You know this man is legit with those boots, they mean business. You I’m a detailer and I have there polishers/buffers and I do have a mini polisher that is battery operated. And now im wondering if that battery will work with my fan or any of my other flex tools 🤔. I need to go home and try it out .

As construction is my life. I love tools every kind of durable tools. I just find it hard to invest into a brand that you just spoke with so many flaws. It seems to early for a growing platform to have so many flaws. Leaking batteries. Chargers barely get wet and quit functioning these tools are supposed to be ip54 rating. Also the blower issue. I have been wanting to cross over. I also have alot of mixed feelings with Dewalt, but it's just on their expansion of their platform. So far, they have done me good, no issues. I have a little blower of Dewalt. I've had it for years and never had an issue. Unfortunately, I'll have to wait and see if they correct these issues to invest. Not all of us are going to be fortunate and have the luxury of Flex sending us tools every time one crashes. So i hope they pick up their game. I did see they came out with a miter saw looks preety slick. That might be the tool that draws me to the dark force. Thanks for the honest review.

My skil batteries fit both my gen 1 and gen 2 tools, all my tools, after i was told they didnt fit. I love my skil but im also jumping to flex and giving my flex to my son. Milwakee, dewalt, and makita owners are sour that you can get the same results for half the price.

Same problem with my blower, flex sent a replacement, no problems with the new one. Having an issue with the 110v power plug on the tower light. All other flex products I have are beasts.

"I've been using all my power tools as well bruh " Flex has alot to catch up with MILWAUKEE

It seems like in Europe we are not having the 24V stacked battery technology (yet ?). Only the 18V. But I am sure glad I found Flex, because while I was doing research these last few months, I found, just like you said, that in every major brand battery platform you need a specific battery for a specific tool. WHICH TOTALLY DEFEATS THE EFFING PURPOSE of having a BATTERY PLATFORM. Man, that realisation made me so mad. Because that means, that you need 3 batteries per tool if you want to work continuously, which is a huge investment and a pain to store. As a lone DYIer, who likes to try her hand at repairing and building anything, I only want a limited number of batteries, like 3, that go with all the tools and one fastcharger. I will drink a non alcoholic beer (Jupiler 0.0 are the best) if I need to wait 10 minutes for a battery to charge. Some tools just make sense to have them on cord, as they will use a dust extractor that will also be plugged in and you are already attached to the vacuum hose , like track saw and sanders. But items like a recipricating saw, drills, blowers, multitools, drywall screwdrivers, lights I really just want to be able to use them anywhere without having to plug them in.

Also to add to the point that you mentioned about Flex dominating the battery market in power tools. I completely agree. Chervon (their parent company) KNOWS batteries and charger. I like to say to my coworkers and people online that Dewalt launched stacked batteries first (even tho there was marketing material from Flex showing stacked batteries months before Dewalt launched theirs), Flex perfected it with 3 batteries on launch and Milwaukee copied it.

Thanks for clearing this up. I thought the leak was acid

They got that chop saw and table saw now!!!

The leaking batteries is the only problem iv had I had 2 of them do it and both batteries eventually stopped working but flex switched them out and iv had zero problems since

So far what I’ve seen when a battery leaks when opened up is the metal’s inside are extremely corroded. I would see this as a possible fire issue, so I’d swap them out to be safe. Otherwise I’ve had good luck with the flex.

For everyday use, you can not buy better tools. Even the Stack Pack is the best when it comes to portable storage. I'm hoping Chervon will expand the brand to compound miter saws, self leveling lasers, etc...

Live in texas and got flex no prob with batteries or tools yet

Lol that’s why when you put a flex battery on a dewalt it makes it twice as strong as on the flex tool😂

I considered trying Flex or Milwaukee when I got a new impact but noticed they’re all Made in China. Figure I’ll stick with my made in Mexico Dewalt Tools over the alternatives

At least this brand backs up their product I bought 2.=12 amp battery from Milwaukee and both got damage internally on light use,less one year they did not even respond to my email, so I bought 9amp 3 .battery the same Milwaukee batteries on the high output stuff is trash absolutely trash I have many of their tools but will Be selling them just because of that. Thanks for the honest review

“Fake tool reviewer” lol cmon bruh. Everyone is allowed to create content on their channel how they see fit. No need to measure d*cks or compare or try and talk poorly on other channels. We’re all out here for the same thing. We use and abuse our tools on the job site as well so Flex is in fact a beast and gets the job done.

Opened up my 2.5/5.0 batteries and carefully scrapped out that thermal stuff and put the rubber bumper back and work just like Dewalt/makita/etc batteries. The chip on the batteries have heat shut off so could care less about the gooooopp

I got 3 5.0 and 3 2.5 batteries none leaked and im in texas

Truth bud

I’ve had two batteries leak. Flex replaced them no problem.

Flex needs a 24 v framing 30 degree framing nailer no nitrous and a turbo

Funny they told me it was due to moisture getting in the battery

There is a problem if you can’t leave your batteries in your work van

i just called flex after watching this video and they told me they wont give me the new stacked lithium but replace with the same model

They're dropping the cylindrical cell batteries, and replace warrantied cylindrical cell batteries with the stacked lithium? I'd like to see some citation to support those claims, because that is news. Full disclosure: I have all the Flex tools you have, but I bought them.

Makita dewalt and milwaukee all get used in 120 degree deserts and artic tundras and they dont leak anything...

What you mean to say is “ I couldn’t care less” right ?

If it ever happens....i will give them a chance to fix it. My milwaukee m18 failures were denied by milwaukee because home depot sold me 2 year old batteries. Not going back to milwaukee..... I love my flex tools. I am certain they will fix the problem. If not i also own a variety of Hercules tools. And so far i have been impressed as h*ll with them. Not doing dewalt or makita. Dewalts 1 year warranty is trash.

Flex battery can’t take pressure

Yeah this is weird, it's because they get dirt oil and moisture in them and then the heat is enough to make it run off.

They better replace new batteries is their flaw they should no better mine are in my garage they still leak that messi shit

Awesome video!! But Milwaukee will always be the best!

@jondawson Alright, but hear me out. What about FLEX bringing out their own version of a Portable Radial Arm Saw?!

Nope no deal , I'm staying away from Flex

IT IS THERMAL GREASE. It cools the battery and extends cell life. Most brands don’t even bother with heat management. The first few times it gets hot, you might get some excess coming out. You can get other batteries with no cooling compound and they won’t last as long.

Love how you complain about using certain batteries with certain tools then bragged how flex can run with the smallest battery then answered your own complaint about it by saying that you don’t know why you would. Exactly no one cares if that slim pack will run it because no one will do that. Lmao.

First

But what if ur a flex fan queer