Milwaukee M12B4 4.0Ah Lithium-Ion Battery - Red

Product Information

Let's look at 9AH High Demand 18v batteries. These batteries are made up of 3 banks, 5 series LG HG2-18650 cells, which are rated at 3Ah, 4.2V 20A per cell. The 4.2 volt voltage is fully charged voltage, and drops rapidly to about 3.6 volts under load from where it slowly tapers off towards 2.5v as the battery discharges. So our battery is a 60A, 60A x 18V = 1080 watt battery. The energy of the battery is 9Ah x 18V = 162 watt hours. Don't believe me? Look at the bottom of your 9Ah battery. The POWERSTATE ™ Brushless Brushless Motor delivers 10,000-20,000 OPM while maintaining its speed under load better than the competition to provide the fastest cuts of any 12V competitor. I hope this tutorial clears things up. If you have questions or something is unclear, ask here and I will do my best to explain.

At Trade Counter Direct, we are proud to offer a wide range of Milwaukee batteries and chargers. These high-quality batteries and chargers are designed to fit all Milwaukee tools, including both M18 and M12 models.Battery ENERGY is measured in Watt-Hours or Wh. Battery energy is equal to it's capacity multiplied by it's nominal voltage. A 2 Ah, 18 volt battery will have more stored energy than a 2 Ah, 12 volt battery. 2x18 = 36Wh versus 2x12 = 24 Wh

REDLITHIUM™ protection with REDLINK™ digital overload protection to prevent users from damaging their cordless power tool investment in abusive situations Carriocca Business Park, Unit 87, Hellidon Close, Cariocca Business Park, Manchester, Greater Manchester, M12 4AHBattery voltage is "PRESSURE". Battery current (Amperes) is "FLOW RATE". The maximum amount of current (Amps) a battery can source is limited by it's chemical properties. Its typically INVERSELY proportional to the cell capacity (Amp-Hours). Yes, the higher the Amp-Hours, the lower the maximum Amps the battery can supply. We offer a variety of Milwaukee batteries and chargers to choose from, including options with different voltages, capacities, and technologies. This means that no matter what your needs are, you'll find the right battery and charger at Trade Counter Direct. Plus, with our close partnership with Milwaukee Power Tools, you can trust that you're getting high-quality products that are built to last.

NB: I do not work for Milwaukee, I am not sponsored by them or anyone else, and I have no conflict of interest as I do not benefit from sales of Milwaukee tools, neither is this subreddit.For Scotland, 2011 data is shown (update coming soon, the Scottish census was delayed by a year unlike the rest of the UK).

The census collection is designed so that each group of postcodes should contain at least 100 people (50 in Scotland). Before we start, let's get some terminology out of the way. I see a lot of false information going around, with r/milwaukeetool being #1 source of bad info. I will do my best to explain the differences between the batteries. I am an electronics tech so I hope I know what I am talking about :) Now let's dive in. Milwaukee uses Samsung INR18650-30Q cells in their M12 6Ah batteries. Watch ( https://www.youtube.com/watch?v=HLUx2-uYdZc ) if you are a nonbeliever. The datasheet specifies it's maximum recommended current draw is 15A per cell. Can the cell provide 20A, or even 30A? Absolutely, it will just get really hot which will permanently reduce it's lifespan and in extreme cases permanently lower the capacity. The battery has 6 cells, 2 banks of 3 series cells. Putting cells in parallel adds up their capacity and max output current. Putting batteries in series adds up their voltage. The cells are 4.2V 3Ah cells.

POWER is measured in watts, 1 Watt = 1 Volt x 1 Amp. Maximum battery POWER OUTPUT is dependent on it's maximum current output and it's voltage. A 18v FUEL impact driver draws about 800 watts under heavy load, so slapping a 9Ah battery on it will not yield any higher performance, just higher runtime. Slapping a 1.5Ah on a chainsaw will not only get you about .3AH of useful capacity, the tool will stall very easily as the battery electronics will prevent you from overdrawing it and you will not get anywhere near the output power the tool needs. What is 18650, 21700? These are cell sizes, 18650 means the cell is 18 mm in diameter and 65 mm long. 21700 means it's 21 mm in diameter and 70 mm long. The bigger the cell, the higher the Amps it can source, and typically the higher the Amp-Hour capacity of the cell is. A 2Ah 21700 cell can put out 30-40 Amps, while a 2Ah 18650 cell can put out 15-23 Amps. Milwaukee 1.5, XC(3.0), XC 4.0, XC 5.0, XC6.0 and HD 9.0 batteries use 18650 cells. Milwaukee HO 6.0, 8.0 and 12.0 use 21700 cells. For comparison, a HO 6.0 will absolutely destroy XC6.0 in terms of Watts is can provide, despite equal ENERGY (Watt-hours) and CAPACITY (Amp-hours), due to much higher CURRENT (Amps) 21700 cells can provide.