(2 pack) Hyper Tough 20V Max 4.0Ah Battery Pack, HT21-401-003-11

Recently bought a lawnmower with the 6.0 Ah batteries. Wanted a back up set of batteries to be able to complete our yard. 6.0 AH don't seem to be available so went with these. Work fine and more importantly the chargers that I have from the lawnmower fit %26 work!! Was a little worried about that since a previous Snapper lawnmower had major issues with replacement batteries so Kudos to Hyper Tough to have replacements that actually do the job. I usually pair one 6.0 with a 4.0 and the mower works fine. Nice to have a fresh pair of batteries when I am halfway through the yard. Definitely recommend.

They are expensive but they last longer than most other batteries. I'm a woman that loves tools and getting my hands dirty so I always look for things that are worthwhile. They charge pretty fast and hold the charge for a while. I have a very large backyard and 2 of these in my lawnmower get my entire yard done. I will be sticking with Dewalt and HyperTough products from now on.

I purchased this battery as a backup. It has performed as expected. I use it for a Hyper Tough hand blower. Great product with long lasting batteries.

this is a super battery and it last a very long time i purches it with the power invertor and it has super amount of power as it has powered my wife disability lift chair for several hours when we had a power outage as well as it also powered a table top light for 5 hours also during the power outage highly recommend it for construction tools and also the power invertor

Longer lasting battery is an improvement. I used them for previously purchased Hyper Tough lawn mower. Takes about 5-6 hours to fully charge for maximum use. I was able to mow most of medium sized front yard with two fully charged batteries.

There are two Hyper Tough 20V MAX 4.0Ah batteries. This one with model number HT21-401-003-11 and a newer model with built-in USB-A and USB-C Ports. I'd recommend the one with the USB ports over this model without them just for the utility factor.

The battery takes all day to charge I ordered a faster charger after two or three days they gave me my money back and said item did not ship and i still don't have a faster charger very very upset over this

Waste of money, doubles the grass cutting time. It takes about 2 hours to charge these batteries just to get 15 minutes of use out of them using the Hyper Tough Mower,

The batteries are not the same size and neither one charges when I use the factory Hyper Tough charger. I got riped off for about $100.00. I want my money back or two batteries that will charge.

New battery would not charge it was dead when new, no battery life left indicator lights as described on battery. Also hard to find, only through Walmart.