Milwaukee M18 Gen 3 2853-22 Impact Driver Comparison 

so it is...

@@ToolCraze Oh Just that when I run cp2.0 battery on my gen 3 I get less power. apple to apples.

Many people think that a larger battery automatically gives greater performance. AH is simply a measurement of capacity like the gallon capacity of your cars tank. A tank that holds 2 gallons will run twice as long as a tank with 1 gallon. A 5ah battery will run about 2.5 times longer than a 2ah battery. Over time, batteries lose their strength and often times a new battery, usually a larger capacity, may seem to give a bump in performance, however that's due to being compared to a lagging older battery. I've had this conversation with many people in the past however if a larger battery offers guaranteed better performance, then why does the Ryobi in this video which has a 4ah battery not come in second place in all the tests?

@@ToolCraze I'm sorry but the analogy is incorrect as each cell is a tank and each one has an ability to discharge its energy. A gas tank is a single cell not multiple cells with their own fuel pump... These battery packs are made up of series and in larger packs series parallel connections. The greater the capacity of the battery the more parallel connections. Resistance decreases in parallel circuits allowing an increase in amperage. dividing the load over more cells in the larger packs results in less voltage sag as well which also contributes to the added power. I see after reading other comments you do not have an understanding of how electricity works which is fine, this will be my last post anyway. The fact that the Ryobi losses is because it is a lesser tool and even with extra amperage is at a disadvantage as the motor itself is weaker. also not all 18650 cells have the same discharge rate. If you hit the Ryobi with a bolt of lightning it would not be more powerful than the 2853. I'm not saying the gen 3 isn't the most powerful because I have done the tests myself and know that it is but to say a gen 3 with a 5ah battery performs the same as a gen 3 with a 2ah is absolutely not true. So misrepresenting the margin of dominance the 2853 has over the others. Still loved the video style just wish the batteries were more similar.

An impact driver is not a high power draw tool where cell count would matter. Going back to battery capacity ah stands for amp hours not amperage. It's a measurement of battery capacity not performance. That's why you don't understand the gas tank analogy. Look at this independent article on understanding amp hours www.outoftheww.com/projects/what-does-amp-hour-mean

Maybe the chuck but honestly the bit that fell out has serious damage to the base which could also be why it slipped out. Honestly, battery size doesn't affect performance on impacts as you believe, it rarely does for most tools and when it does it's negligible. Only on select tools where they specifically optimize a tool like the new M18 Fuel tools that come bundled with 12.0 batteries, those were optimized to run on the larger 15 cell batteries. You won't find such performance bumps on impact drivers with 5 or 10 cell batteries. I simply used the batteries these impacts were bundled with. Let me ask you a question, did the Ryobi outperform the other impacts because it used a "larger" 4.0 battery while the others used 2.0's? I think you know the answer. Long story short, what you consider as battery size is actually amp hours which is a measurement of runtime not performance. Many people mistakenly think amp hours means amps but that is furthest from the truth.

@@ToolCraze Sorry but it really has been my experience that the battery choice does mean a lot. Plus that is also what a lot of other reviewers report. Just search RU-vid for obvious evidence. Take for example the Ridgid, there actually is a lot of difference in amps available between the 2ah and 6ah Octane. And it certainly shows when using the tool. If small batteries are preferred, then take the 3ah Octane, which uses 21700 cells which will be able to pump out quite some more amps compared to the 2ah. I think you will be surprised! Keep up the good work.

You're talking about octane batteries which not only have newer cells as you mentioned but you do realize that octane batteries are optimized for octane tools? Right? Octane batteries will not increase performance on non-octane tools because they are not optimized to take advantage of them. Basically this is all done through circuitry, not because of what you call amps. It's not amps. Its amp hours. Again, amp hours is a measurement of runtime not performance. I don't need to see other videos as I've tested this myself and in most cases doesn't affect tool performance. Watch my milwaukee m18 9.0 battery video and you'll see it doesn't make the gen 1 fuel hammer drill any better whether is use a 10 cell battery or a 15 cell 9.0 battery. Watch my M18 fuel sds max rotary hammer video and you'll see that it makes no difference if you use the 5.0 or the 9.0 on that tool, the performance is exactly the same. I tested the Dewalt DCD996 with 5.0 and flexvolt battery and the performance is the same - video coming out soon. I have a Makita review of a new brushless circular saw and tested it with 5.0's and 6.0's and the difference in performance is negligible, video coming out soon.

@@ToolCraze You do realize that a 6ah can deliver more AMPERE's, SI unit A, continuously, than a 2ah battery? Same goes for 21700 cells compared to 18650 cells. I'm not talking about run time. I'm talking about power, measured in WATT, you know voltage times current, V*A. Obviously the more power, the better performance, all other being equal. Sure some circuits are optimized for more power, that doesn't mean a 'standard' circuit would not see a boost in performance. Anyway I'm not going to take this further, but as an engineer specializing in handheld electronic appliances, I really could go on. If your tests shows no difference between the batteries you chose to test under the conditions you chose to test under, fine. I have no problems with that, I take it for what it is.

The definition of amp hours is: The Amp Hour (AH) specification provides a measurement of battery capacity. In other words, it is an indication of how much energy can be stored by the battery. Those are not my words, so how can you be an engineer and not know the basic fundamentals? If you can not understand the basics, I'm sorry but I cannot help you. Again, amp hours is a measurement of runtime not performance, repeat until it is ingrained in your memory, amp hours is a measurement of runtime not performance.

Would've if I had one to include

That plus the quiet strike is actually pretty good even if it is a Ryobi