DEWALT 12V MAX* Batteries, 3.0-Ah, 2-Pack (DCB124-2)

I have a Dewalt 12 volt hand drill that is smaller than their 20 volt model that I use because it fits into much tighter spaces, but it still gets the job done. I was thrilled to find these Dewalt 12 volt batteries with twice the capacity of their originals - and they work perfectly on the Dewalt fast charger. I hope they last as long as the drill does.

They are great for the money, have had zero issues, had to order more for other friends and family cause the price for what you get is unbeaten

Very happy with the smaller DeWalt impact driver.

I actually don't own any DeWalt tools that these fit. I bought them to power some custom made 12v devices. I needed a compact, reliable power source, and the DeWalt form factor fit the spec. One of the appealing benefits is that they are easy to build custom mounts for since a standard blade connector can be used for the contacts. I 3D printed some mounts and they work great. You can find similar ones on Thingiverse.I started with some of the less expensive 3rd party "compatible" batteries that are available. Many have claims of up to "4AH" in the same size as these. After initially being disappointed in capacity of the 3rd party brands, I decided to purchase these "Genuine DeWalt" ones to compare.It doesn't appear that any of the batteries I tested contain over-discharge protection - apparently DeWalt relies on the tool to manage that. So I had to add my own protection circuitry. (Note: I did not confirm this, I am making the assumption because the 3rd party batteries had no protection...I was able to drain them down well past the safe level and they never shut down. I didn't test the DeWalts in that manner because they were too expensive to risk. But they didn't seem to stop me from dipping slightly below what is commonly considered a safe limit and showed no signs of shutting off.)Note I don't have any information about charging protection. I only use a genuine DeWalt charger and am using off the shelf battery packs specifically because I didn't want to have to worry about safe charging. Over discharge can ruin a battery, but improper charging makes fires so I'd rather let the experts deal with that. My assumption is that all of these batteries have over *current* protection since that is a requirement for all commercially available lithium packs as far as I know.The circuit I tested these in draws around 350-450ma continuous. It varies as the voltage drops, so I can't give an exact figure, but all testing was on the same circuit performing the same function and so should be consistent for comparison. At that current, I was able to get about 8-8 1/2 hours of run time from one of the DeWalt batteries before my protection kicks in. That seems about right for their claimed 3ah capacity.In comparison, the cheap imported batteries that *claimed* to be 4ah got less than 6 hours before my protection kicked in. Those were returned to Amazon due to completely false claims. I also tried some others that probably came out of the same factory but only claimed to be 2ah, and they too gave about 6 hours. The 2ah claim is probably closer to reality, so don't be fooled thinking there is a 4ah battery in this physical size. There isn't.So bottom line: the DeWalt batteries seem to live up to their 3ah claimed capacity. They are much more expensive than the aftermarket batteries though, so I guess you need to weigh cost vs capacity to decide if the premium price tag is worth it. In my case, I was shooting for the longest run time in the smallest package, so I'm keeping the DeWalts. I also kept some of the cheaper ones to use for projects that don't have as high a power requirement in order to save a few bucks.While my testing doesn't say much about how well any of them work in the high-current demand of a power tool, hopefully it will help out some makers that might be considering these batteries for other projects.

Packaged as seen in photo (minus the internal plastic zip lock bag not shown). Stamped with recent mfg date. Both packs arrived at 10.39 vDC. and charged to 12.39 vDC on my original DCB107 charger. After 48 hours rest, 12.37 vDC on both packs. Double the capacity and Wh of my original 9 y.o. 1.5 Ah kit batteries in virtually the same size. Good deal.

Having these new batteries, I will hardly use my 20V drills or my 20V impact tools. It took me a while to find the correct drill and impact tool. Most of the 20V systems end-up over twisting my wrist and sometimes my whole arm. These is crazy and unsafe. One day, I walked in Home Depot, happened to be close to Father's day, I noticed some DEWALT reps were ready available. Took the opportunity to mention what the 20V tools where doing to me, and I got introduce to the 12V system. I am not looking back now after I found these powerhouse batteries.Ladies if you the same challenges I have with the 20V drills, and impact tools, do not over think it, just get the 12V version with these batteries and you are set. I was able to repair my deck, drill thru rocks, for placing anchors, etc.My arm and wrist are now happy campers!!!

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