Stanley Fatmax 18v Battery is it compatible …

leckyone · Post by **leckyone** » Mon Oct 02, 2023 3:41 pm

I have to replace my Stanley Fatmax 18v drill.

The batteries I have are good batteries, but they not marked as V20 as the new batteries.

My batteries are ‘FMC687L’ (Li-ion - 18v Lithium) manufactured 2017.
They look the same as those marked as V20 online, just not marked as V20.

My question: Would my batteries be compatible with the new V20 range of brushless drills

Someone-Else · Post by **Someone-Else** » Mon Oct 02, 2023 3:50 pm

For the definitive answer why not ask the maker of your proposed new drill.
At a guess I would say if the V stands for volts, and your new drill is 20v and your old drill is 18v, they should work, but will never run as fast as the correct battery, and they will not last as long.

leckyone · Post by **leckyone** » Mon Oct 02, 2023 4:54 pm

The online fatmax V20 batteries are still 18v, think of larger capacity

Contacted Stanley, wait for the reply now

leckyone · Post by **leckyone** » Mon Oct 02, 2023 6:43 pm

Ok,
Just had a reply from Stanley

The original ion 18v Lithium batteries of 2018 era.

Cannot be used with the V20 range of Fatmax tools even though they are too 18v

Someone-Else · Post by **Someone-Else** » Mon Oct 02, 2023 8:50 pm

Just as well you asked "stanley" then.