Відео

I cant wait to see a video of this battery being time tested to see if it balances better. I have already purchased one and if balancing is a issue i will be returning these to milwaukee and switching brands altogther. I dont appreciate a company selling cleary faulty batteries for 249 dollars.

This is very exciting. Can you write the code section back to the nonvolatile memory? Or only read? What tools are you using to reverse engineer the code? What are the chances the balancing code is already there that is 1 bit flip away from being enabled? 🎉

Thanks for the inside look. Do you know if they're using off the shelf cells for these batteries? The new dual battery chainsaw makes some bold power claims, 6.4hp or 4,700W on two of these. That would mean each pack is putting out 130-150 amps depending on the voltage sag. Whew!

Awesome video! Thanks. Although hopeful about the higher passive cell balancing capacity, I do think it is unfortunate that the upgrade is very minimal, as you were rightly worried about. It is unfortunate Milwaukee did not go for active cell balancing and that cell balancing is limited tot 5 resistors only, as this means only every group of 3 cells are balanced but that we din't get better cell balancing with 10-15 cell balancing, which could greatly improve battery health. It does look like the board could be replaced a bit easier which would make replacing with a better third party board possible. With non security screws on the side I get a sense the battery is potentially more repairable than the current HO batteries, which is good to know.

i hope this new forged 12.0 can keep the cells balanced. The old non forged 12.0 and 8.0 and 9.0ah were horrible or at least had a horrible bms because after a short amount of time there were always at least one back of cells there were really out of balance killing the total capacity of the whole battery pack. Happens to all of the old 12.0 /8.0 high output m18 batteries as well as the really old 9.0ah. I use to have to take apart the batteries and manually charge the low voltage cell manually with my RC charger to get the battery to normal working condition and this had to be done every 5 or so charges. Never had this problems after hundreds of charged with the m18 5.0 or high output 6.0 also all my super old ryobi batteries all still charge and balance great.

Looking forward to more content on reverse engineering these new batteries. It will be another round of shame if these indeed do not balance.

Fascinating stuff. Thanks a ton for editing all this this and putting it up. I want to reverse engineer my Fein batteries, and now I understand where to start with this.

Ok but why are they running it to such a crazy amperage when it should never get even close

Exact video I am looking for. Just got one and always wondering what makes the inside

In this time I could have finished the job... Great analysis though! I just dont know how practically useful this info is

Very interesting as always. Thank you for diving into this

4:35 I'm prob wrong about this motor being for an impact driver. Impact driver's only have single stage planetary gearboxes, which top out at 10:1, which would give 6,500 RPM. M18 impact driver is 3,900 RPM. I think it's more likely an oscillating multi-tool, which runs at 20,000 OPM, so a more reasonable 3:1 reduction.