That battery looks new, usually i judge people stuff on the outside how dirty and scuff up they are, on the inside that looks worse than my dewalt battery from 2013 which still works amazing
The cells aren't leaking. It's the thermal paste they inject between the cells that's turning to liquid grease. Peel the rubber flap off the bottom of the inner clamshell and you'll see what I'm talking about.
Yep, this battery was heavily overheated and overworked. Like I've said, it is too weak for a tool like a sawzall. Not saying it's your fault though, tool should recognize the battery and limit the power accordingly, they really need to update this. Also if anyone is wondering, these are Samsung 25R cells, 20A continuous, so 440w cont for this pack. If they used 25S or VTC5A cells it would certainly be better.
If you noticed in the last video I did, the charger would just show all green fully charged on this battery and the tool never had a thermal shutdown. So either Flex tools don’t have the proper protection circuits or they have failed or fail far to easily. Either way I’ve lost faith in Flex at this point.
My understanding was that the batteries get hot and a grease type material thins out and then leaks out. My grinder came with 2 batteries, a 2.5ah and a 5ah. Both had had some leakage before I haven't used them. I assumed it was from being in a vehicle on a few 90°+ days. I'll call Flex up and see what they say
Ive only used their stacked lithium batteries, 3.5, 6.0, and the 10.0. No issues to report so far with those. Has anyone had leakage from the stacked lithium?
It’s not the Samsung cells that leak, just the heat dissipating material. The Stacked batteries use pouch cells (cell phone type) and have no such “phase change” heat sink, so they can’t leak. None of my Stacked batteries have flinched and I run them hard.
I used my FLEX hammer drill for the first time a few weeks ago. It was amazing and did great work.... For about an hour. Then it overheated. I was not able to use it till the next day. It worked just as good, but overheated again. Had to wait again till the next day to use it. Flex is great, but it overheats quickly. When using it, use it for the big short jobs. Start with Flex, finish with Makita or something. I would not say that I am disappointed with the brand at all..... Using that extra power comes at a price though. Since I use them on the farm I dont have to go to job site or anything. If I did, I probably would not use the brand.
You should open the replacement warranty batteries you received. They modified your FX0111-1 they sent you to a F110172005, look at the sticker on the box. They have opened up the FX0111-1 and applied some kind of electrical caulk / sealant to stop the liquid from leaking out and re identified as the F110172005. Lowes and other retailers should demand Flex fix the problem and remove stock from the shelves until resolved. Do not buy Flex coming with Lithium ion batteries. Better still don't buy Flex period, better options out there and force the change. 4 model #'s are effected by this flex problem and oddly enough 10 Skil battery models are having issues but none that i know of with Kobalt.
im surprised you didnt peel up that black piece at the bottom that is where its all coming from not the side its the gel or whatever they use to cool the batteries i have multiple flex batteries that do this i dont know if its dangerous or not but it is definitely something they need to fix
they removed it from the new batteries that come with newer kits thats why all the clearances happened i think because my subcompact flex tools came with the new style batteries i just opened one and there is no cooling gel under the battery
The tools don’t run hot, according to anyone who actually uses them in the field. The 2.5 amp battery gets hot and shuts down, not the tool. Milwaukee is notorious for getting hot.
Bad thing is that Flex is not helping anyone out with these major fail. I bought a set on Ebay and they told me since I didn't buy from Lowes they CANNOT help. They are not telling anyone about the replacements until everyone started complaining and even at that they did not make it public. Meanining if you didn't call them to have your batteries replaced you were out on your own.
That’s mostly true for any brand, you have to buy the tools from an authorized retailer for the warranty to be valid. Flex requires you to register the tools for the lifetime warranty. Not a bad trade off for the greatly increased warranty.
That battery looks new, usually i judge people stuff on the outside how dirty and scuff up they are, on the inside that looks worse than my dewalt battery from 2013 which still works amazing
The cells aren't leaking. It's the thermal paste they inject between the cells that's turning to liquid grease. Peel the rubber flap off the bottom of the inner clamshell and you'll see what I'm talking about.
Flex has told everyone that actually called the service center that moisture got in the battery, and they are replacing them under warranty.
That’s not what they told me. They said it was the phase converting gel liquifying and sent me new batteries.
@@bauerdad I think it still had something to do with moisture that caused the problem. At least that’s what one channel said.
This is many videos I have seen (in a few months) where flex batteries have leaked. I am surprised Flex hasn't seriously addressed this issue?
Flex needs to address this fast. I've seen this several times by reviewers.
That's why you should stick with Makita, old technology that has been tried and tested
If it aint broke dont fix it 😁
Yep, this battery was heavily overheated and overworked. Like I've said, it is too weak for a tool like a sawzall. Not saying it's your fault though, tool should recognize the battery and limit the power accordingly, they really need to update this.
Also if anyone is wondering, these are Samsung 25R cells, 20A continuous, so 440w cont for this pack. If they used 25S or VTC5A cells it would certainly be better.
If you noticed in the last video I did, the charger would just show all green fully charged on this battery and the tool never had a thermal shutdown. So either Flex tools don’t have the proper protection circuits or they have failed or fail far to easily. Either way I’ve lost faith in Flex at this point.
@@UltimateToolReviews agreed, if they have them they are waaaay too loose. This should never happen
@@riba2233 Also at this point, I am giving up on Flex, I don't want to burn my house down if one of these batteries fail catastrophically.
@@UltimateToolReviews yeah this doesn't feel safe at all!
Same issue I had I just sold all my flex stuff
I am thinking about doing the same, I am now afraid of one these batteries starting a fire.
Update - Sold all of my Flex stuff.
My understanding was that the batteries get hot and a grease type material thins out and then leaks out. My grinder came with 2 batteries, a 2.5ah and a 5ah. Both had had some leakage before I haven't used them. I assumed it was from being in a vehicle on a few 90°+ days. I'll call Flex up and see what they say
See my previous video - ruclips.net/video/H-jK0MxC0wI/видео.html
For me my 1 battery out of 4 is leaking, it's the one that has never been used....So it's not a overheating problem.
Ive only used their stacked lithium batteries, 3.5, 6.0, and the 10.0. No issues to report so far with those. Has anyone had leakage from the stacked lithium?
It’s not the Samsung cells that leak, just the heat dissipating material. The Stacked batteries use pouch cells (cell phone type) and have no such “phase change” heat sink, so they can’t leak. None of my Stacked batteries have flinched and I run them hard.
The cells are not leaking
I used my FLEX hammer drill for the first time a few weeks ago. It was amazing and did great work.... For about an hour. Then it overheated. I was not able to use it till the next day. It worked just as good, but overheated again. Had to wait again till the next day to use it.
Flex is great, but it overheats quickly. When using it, use it for the big short jobs. Start with Flex, finish with Makita or something.
I would not say that I am disappointed with the brand at all..... Using that extra power comes at a price though. Since I use them on the farm I dont have to go to job site or anything. If I did, I probably would not use the brand.
It's not the batteries leaking it's the stuff they coated the circuit board with, and it reliquified and is dropping
I have the same problem
You should open the replacement warranty batteries you received. They modified your FX0111-1 they sent you to a F110172005, look at the sticker on the box. They have opened up the FX0111-1 and applied some kind of electrical caulk / sealant to stop the liquid from leaking out and re identified as the F110172005. Lowes and other retailers should demand Flex fix the problem and remove stock from the shelves until resolved. Do not buy Flex coming with Lithium ion batteries. Better still don't buy Flex period, better options out there and force the change.
4 model #'s are effected by this flex problem and oddly enough 10 Skil battery models are having issues but none that i know of with Kobalt.
im surprised you didnt peel up that black piece at the bottom that is where its all coming from not the side its the gel or whatever they use to cool the batteries i have multiple flex batteries that do this i dont know if its dangerous or not but it is definitely something they need to fix
they removed it from the new batteries that come with newer kits thats why all the clearances happened i think because my subcompact flex tools came with the new style batteries i just opened one and there is no cooling gel under the battery
The 2.5 amp battery gets hotter than the 5 amp battery.
Their tools run to hot there is no way they can hold up. In most test they over heat and shut down
The tools don’t run hot, according to anyone who actually uses them in the field. The 2.5 amp battery gets hot and shuts down, not the tool.
Milwaukee is notorious for getting hot.
Well imma use mine till they stop working completely then send them in with the warranty
please do not poke around inside a battery with a metal object
Hmmm, ‘FLEX’ and ‘Fail,’ both start with an ‘F’. EFF a Flex! 😆
Bad thing is that Flex is not helping anyone out with these major fail. I bought a set on Ebay and they told me since I didn't buy from Lowes they CANNOT help. They are not telling anyone about the replacements until everyone started complaining and even at that they did not make it public. Meanining if you didn't call them to have your batteries replaced you were out on your own.
That’s mostly true for any brand, you have to buy the tools from an authorized retailer for the warranty to be valid. Flex requires you to register the tools for the lifetime warranty. Not a bad trade off for the greatly increased warranty.