Make sure the battery is compatible with your tool brand and battery system. Check the voltage (V), capacity (Ah), and whether it’s an original or third-party model. Most modern batteries are Li-ion.
Batteries
Milwaukee M12 B3
The Milwaukee M12 B3 12V 3.0 Ah provides a good balance between weight and runtime. Perfect for M12 tools where extended use is needed without making the battery too heavy or bulky.
7.8
Capacity
5/10
Quality
9/10
Compatibility
9/10
Value for money
8/10
Total rating: 7.8/10
| Brand | Milwaukee |
| Battery system | Milwaukee M12 |
| Product title | M12 B3 |
| Voltage | 12V |
| Capacity | 3.0 Ah |
| Battery type | Li-ion |
| Weight | 200 g |
| Compatible chargers | 5 |
| Product page | Link |
Compatible chargers
Similar batteries
Compatible chargers
1. Milwaukee M12-18 AC
12V-18V, 2.5 A
600 – 1,200 SEK
The Milwaukee M12-18 AC is a car charger for M12™ and M18™ batteries with a 2.5A charging current. Ideal for professionals needing to charge batteries in vehicles via a 12V outlet to always have power ready.
7.3/10
2. Milwaukee M12 C4 4-punktsladdare
12V, 3.0 A
1,400 – 1,600 SEK
The Milwaukee M12 C4 is a 4-port charger for M12™ batteries with a 3.0A charging current. It charges batteries sequentially and is a practical option for those needing multiple charged batteries.
7.3/10
3. Milwaukee M12-18 C
12V-18V, 3.0 A
700 – 1,200 SEK
The Milwaukee M12-18 C is a multi-charger for M12™ and M18™ batteries with a 3.0A charging current. It charges one battery at a time, prioritizing the first inserted, making it ideal for workshops.
7.8/10
4. Milwaukee M12 C12 C
12V, 3.0 A
750 – 1,000 SEK
The Milwaukee M12 C12 C is a charger for M12™ batteries with a 3.0A charging current. It charges a 2.0Ah battery in about 30 minutes and is a reliable choice for those needing a stable and secure charging solution.
7.3/10
5. Milwaukee M12-18 FC
12V-18V, 6.0 A
600 – 1,200 SEK
The Milwaukee M12-18 FC is a fast charger for M12™ and M18™ batteries with a 6.0A charging current. It reduces charging time by up to 40% and is perfect for those who need to minimize downtime.
8.8/10
Similar batteries
1. Milwaukee M12 B2
12V, 2.0 Ah
400 – 700 SEK
The Milwaukee M12 B2 12V 2.0 Ah is a compact and lightweight battery with fast charging and reliable performance. It is perfect for shorter work sessions and fits all M12 tools without compromising ergonomics.
7.5/10
2. Milwaukee M12 HB2.5
12V, 2.5 Ah
750 – 1,000 SEK
The Milwaukee M12 HB2.5 is a High Output battery that delivers more power and longer runtime than standard models. Designed to provide improved performance and longer lifespan in M12 tools.
7.8/10
3. Milwaukee M12 B4
12V, 4.0 Ah
800 – 1,300 SEK
The Milwaukee M12 B4 12V 4.0 Ah provides extended runtime and stable performance. An excellent choice for professionals needing a reliable power source for intensive workdays and demanding tasks.
8/10
4. Milwaukee M12 HB5
12V, 5.0 Ah
1,100 – 1,500 SEK
The Milwaukee M12 HB5 is a powerful High Output battery that delivers longer runtime and increased power. Ideal for the most demanding tasks where higher energy supply and extended lifespan are essential.
8.3/10
5. Milwaukee M12 B6
12V, 6.0 Ah
950 – 1,500 SEK
The Milwaukee M12 B6 12V 6.0 Ah is the largest battery in the M12 series, offering maximum runtime and reliable performance. Perfect for long work sessions where constant power and endurance are required.
8.5/10
FAQ
A quality battery typically lasts 3–5 years with normal use, or up to 1,000 charge cycles. Lifespan depends on how often it’s charged, how it’s stored, and the temperatures it’s exposed to. Well-maintained batteries last longer and perform better over time.
Higher voltage (e.g., 18V or 40V) provides more power, while higher capacity (Ah) extends runtime. Heavy-duty tools require both higher voltage and capacity for best performance.
Charge batteries regularly and avoid full discharges. Store in a cool, dry place and clean the contacts as needed. Always use compatible chargers.
Yes, especially if you work for extended periods or use demanding tools. Extra batteries give you flexibility and reduce downtime. Higher-capacity batteries can also be more cost-effective over time.
