Great batteries. Good value for strong power. Dewalt batteries are stronger than others. Im a contractor and have a farm. I love Dewalt and these great batteries give me more options on the job. Dont go cheap. Good value. Yes.

Used for following Dewalt tools:
DCD778 20V MAX* Brushless 1/2 in. Hammer Drill/Driver
DCF787 20V MAX* Brushless 1/4 in. Impact Driver
DCS566 20V MAX* Brushless 6-1/2 in. Circular Saw
DCS382 20V MAX* Brushless Cordless Reciprocating Saw
DCS356 20V MAX* XR® Brushless 3-Speed Oscillating Multi-Tool
DCL040 Cordless LED Work Light
Driving in:
Simpson Strong-Tie Strong-Drive SDWH Timber-Hex 5/16-in x 6-in Double-barrier Exterior Wood screws
Deck Plus #10 x 2-1/2-in Wood to wood Deck Screws

It is a Christmas present but very grateful it arrived on time and packaging isn't mangled, I can give a better review after my husband opens and uses it

I use these professionally. They hold a charge for a very long time, charge pretty quickly, are relatively light for their size, they’re incredibly durable and easy to remove from the tool. I haven’t had any fail yet and I’ve been using them for years.

These work great and come at a very good value. I highly recommend them. Especially if your job depends on them.

LONG STORY SHORT:
I am so glad I bought these. They were more reasonably priced than the ones on SALE at the "Orange Hardware Store" (I got this 2 pack for $89.99). Seems to me like they are an older year/older model, but they work great. Current price at time of writing is $105 for the pair, or $59.55 for a single one. Even at $105 it's worth it. **THESE ARE CURRENTLY $129 at the Orange Store**

PROS:
-Did a little research (not a ton) and seems as though this battery not only has a longer battery LIFE than the 1.5ah that comes with many kits...but it also packs more power. Makes sense, and it definitely feels like it actually does. My saw seems to cut better through thicker stuff, sander seems more powerful, as does the drill, and impact driver. I'm sure there's science behind it, but I don't know it.
-Great price!
The 20V MAX lithium-ion battery outperforms every dewalt battery that came before it and that's saying a lot. Get long-lasting power and prolonged life from this 4ah battery that weighs just 1.42 lbs. Each battery has a built-in charge meter so you know how much power remains. Dewalt delivers huge value with this multi-pack, priced only marginally higher than a single device.

HIGHLIGHTS:
Includes: (2) 20V MAX high-capacity lithium-ion batteries
Compatible with all 20V Max lithium-ion chargers and power tools (sold separately)
Batteries maintain charge when not in use
Compatible with the entire line of 20V Max tools

CONS:
-You can get lighter 4ah batteries in Power Stack form, but they are more expensive.

CONCLUSION:
Buy. I recommend them. They work with all my Dewalt 20V tools, hold a charge well, have a lot of power, last longer than the ones that come in a kit.

I bought the 2pk 5ah from TYH Sales 7/20/2024. The batteries are from 2023 and cells appear to be red in color. Charged and battery indicators seem fine with three lights. I'll let the photos do the talking and update this if the batteries don't last long or operate as usual.

I needed some more batteries for yard work. It has been good to know I have the extra batteries when I need them. I bought these right after the prime day sales for a huge discount. The 5ah battery is the same size as the 3 & 4 ah batteries, but gives you the best use of the size as it last much, much longer than the other two. Smaller then the 6ah flex volt, but still doesn't beat having a flex volt.

If you a dyson and tired of the battery dying mid vacuuming, get this adapter.
I also a good deal on Amazon, 2 pack of a 20volt 5 amp batteries (seen in pic )on Amazon also, best deal I have seen around.

Batteries came earlier than expected date somehow but very pleased about that. Once charged they are great and have tons of power. I have had one on my work radio for a whole week now and it hasn’t even dropped a bar yet

Going to find a project to use my impact gun with these batteries and put them to hard labor. I have no doubt they will help me finish the job without a problem