QUPERR 18V/54V 9.0Ah Replacement for Dewalt Battery Lithium-ion Large Capacity – Compatible with Dewalt Power Tools DCB609 DCB606 DCB547 DCB548

These batteries are terrific value for money and they have a better than expected battery life. I wanted to beef up the battery life of my 10.8volt tools and this did it.

I've had no problems with the battery last as long as the dewalt

Battery is useless. Doesn't even last 10 minutes. Had it for approx 1 month. First 3 or 4 goes it was 30 to 40 minutes, but now it is 10 mins max the dewalt alternative is 2 years old and still does 30 to 40 minutes

Product seems well made and good value. Only time will tell if it’s reliable enough for a fifth star. Not sure what thickness and sheerness have to do with a battery?

Brilliant bit of kit.This is my second batter and only brought another because my impact gun was dropped from around 20 ft and broke the first battery that I had for over 3 years.One charge with heavy use lasts around 2 days

Great replacement batteries. Increased capacity and very long life. Can’t fault them.

Great that there is an alternative to the rwal dewalt 54v now but althought 54v and same ampage they are a little smaller but in our dewalt cut off saw dont last nearly as long as the dewalt ones!! Bout these thinking they would power our saw more while others were charging as they cut between 3 to hard Indian stone paving slabs with no bother these ones only do 1 if were lucky!!!! Great for the lighte dewalt gear such as the 18v stuff as they are still the 'flexivolt' type but no where near as good as the real thing. We have a few others of this make for our 18v dewalt and makita tools and they are fine but I think the firm need to up their game on the 54v ones!!!

does the job - but cannot yet give a rate for battery life - time will tell