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Milwaukee Tool Battery Lithium 18V with Capacity 9Ah M18 B9
Charges & Batteries

Milwaukee Tool Battery Lithium 18V with Capacity 9Ah M18 B9 Code: 4932451245

  • New larger cells, higher power density,
  • Better cooling
  • Lower electrical resistance
  • New high-power processor
  • Higher current handling
  • Maintains existing M18 system compatibility.
  • New shell construction
  • ...
  • New larger cells, higher power density,
  • Better cooling
  • Lower electrical resistance
  • New high-power processor
  • Higher current handling
  • Maintains existing M18 system compatibility.
  • New shell construction
  • Improved current flow
  • Lower temperature rise
See full description See full description

Top specs

  • Battery Capacity

    The higher the number, the longer the tool's operating time. A typical continuous working time is 20-25 minutes per Ah, but it always depends on the type of work we are performing.

  • Battery Voltage (V)

    Up to 10 volts are mostly used for tasks such as screwing/unscrewing. From 10 to 18 volts are suitable for most tasks such as screwing/unscrewing and drilling materials. Tools that are above 18 volts are considered high power and their strength is sufficient even for professional tasks. It should be noted that as the voltage of the tool increases, so does its weight.
  • Compatibility M18 Series
  • See all
What if it breaks?

You're covered by the statutory 2-year warranty. Contact us and we'll handle the entire process with the store, ensuring your issue is resolved with prompt support through a repair, replacement, or refund.

What if I change my mind?

No problem, as long as it's within 14 days. We'll come pick it up or you can choose the Skroutz Point that suits you, completely free for up to 2 times per year, and we'll refund your money. Get Skroutz Plus to enjoy unlimited free returns.

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Product report

Description

Description

  • New larger cells, higher power density,
  • Better cooling
  • Lower electrical resistance
  • New high-power processor
  • Higher current handling
  • Maintains existing M18 system compatibility.
  • New shell construction
  • Improved current flow
  • Lower temperature rise

Manufacturer

Manufacturer Details

Warnings & Safety Information
See full description

Specifications

Specifications

Product Number
4932451245

Dimensions

Type
Battery
Lithium
Yes

Lithium


Lithium batteries offer higher energy density, lighter weight, and longer lifespan compared to NiMH. Similarly, lithium chargers are designed to safely charge batteries of this type.
NiMH
No
Back
No

Battery Features

Number of Batteries
1
Battery Voltage (V)
18 V

Battery Voltage (V)

Up to 10 volts are mostly used for tasks such as screwing/unscrewing. From 10 to 18 volts are suitable for most tasks such as screwing/unscrewing and drilling materials. Tools that are above 18 volts are considered high power and their strength is sufficient even for professional tasks. It should be noted that as the voltage of the tool increases, so does its weight.
Battery Capacity
9 Ah

Battery Capacity

The higher the number, the longer the tool's operating time. A typical continuous working time is 20-25 minutes per Ah, but it always depends on the type of work we are performing.

Popular Series

Compatibility
M18 Series

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

See all specifications

Reviews (22)

Reviews

4.9
22
4.9
Review this product
  1. 20
  2. 2
  3. 3 stars
    0
  4. 2 stars
    0
  5. 1 star
    0
Review this product
  • Lambros_Goulas
    5
    1 out of 1 members found this review helpful
    Lambros_Goulas

    Verified purchase

    This review is about the battery capacity: 5 Ah

    Between the size 5 and size 4, prefer the latter; very close in size but the size 5 is quite a bit heavier.

    Translated from Greek ·
    Did you find this review helpful?
  • Alexandros_Koka
    5
    0 out of 2 members found this review helpful
    Alexandros_Koka
    This review is about the battery capacity: 12 Ah

    This specific battery has no difference from the other 12ah because this one, from what I see, has a different button that shows the battery indicator and it looks a bit different from the other one. Is there any difference? Please respond if anyone has it

    Translated from Greek ·
    Did you find this review helpful?
  • kostaslilisfromgreece
    5
    2 out of 2 members found this review helpful
    kostaslilisfromgreece
    This review is about the battery capacity: 12 Ah

    I bought it for a Milwaukee FHP or 2915 for those who know the tool I'm referring to, at first we were using simple 5Ah batteries which would heat up and run out very quickly, with this 12Ah the tool has changed, you can tell by the sound and the duration of use, it's obviously not comparable, it's an expensive battery but if you work with more demanding machines it will be very useful.

    Translated from Greek ·
    Did you find this review helpful?
  • marios venetis
    5
    2 out of 2 members found this review helpful
    marios venetis
    This review is about the battery capacity: 5 Ah

    It is on the edge of weight/performance. It doesn't tire you out because it is relatively light and lasts quite a while. However, one is definitely not enough. I have 4 m18 and 3 m12 with two chargers so I never run out. Maybe later I'll get an 8ah for the impact wrench because it's the only one that doesn't last long. The others (grinder, drill, impact wrench) are excellent

    Translated from Greek ·
    Did you find this review helpful?
  • Marios_CHatziioannou
    5
    1 out of 1 members found this review helpful
    Marios_CHatziioannou

    Verified purchase

    This review is about the battery capacity: 5 Ah

    Much more powerful battery than the 2 Ah, approximately double the power with screwdriver and more.
    Perfect!!

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    JIMMYS_KOUBOURAKIS

    Verified purchase

    This review is about the battery capacity: 8 Ah

    Poison both in price and in performance

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    mariako1611

    Verified purchase

    This review is about the battery capacity: 5.5 Ah

  • 5
    THANASIS_KAPENIS

    Verified purchase

    This review is about the battery capacity: 5 Ah

  • 5
    Panagiotis_Argyropoulos7520

    Verified purchase

    This review is about the battery capacity: 4 Ah

  • 4
    Stavros_Giokas

    Verified purchase

    This review is about the battery capacity: 2 Ah

  • 5
    siniori_maria

    Verified purchase

    This review is about the battery capacity: 5 Ah

  • 5
    Chris.C

    Verified purchase

    This review is about the battery capacity: 4 Ah

  • 5
    Theodore_Filidis

    Verified purchase

    This review is about the battery capacity: 5 Ah

  • 5
    George_Athanasiou8186

    Verified purchase

    This review is about the battery capacity: 3 Ah

  • 5
    misha_aivazian

    Verified purchase

    This review is about the battery capacity: 5 Ah

  • 5
    balisthan

    Verified purchase

    This review is about the battery capacity: 5 Ah

  • 4
    kyriakos_kyriakou625

    Verified purchase

    This review is about the battery capacity: 5 Ah

  • 5
    Hakan_Cicekci

    Verified purchase

    This review is about the battery capacity: 2 Ah

  • 5
    sakiss3mell

    Verified purchase

    This review is about the battery capacity: 5.5 Ah

  • 5
    0kostas0

    Verified purchase

    This review is about the battery capacity: 5 Ah

  • 5
    Thanasis_K2

    Verified purchase

    This review is about the battery capacity: 5 Ah

  • 5
    Xronis_Stamatakis583

    Verified purchase

    This review is about the battery capacity: 5 Ah

  • Lambros_Goulas
    5
    Lambros_Goulas

    Between the size 5 and size 4, prefer the latter; very close in size but the size 5 is quite a bit heavier.

    Translated from Greek ·
    1
  • Alexandros_Koka
    5
    Alexandros_Koka

    This specific battery has no difference from the other 12ah because this one, from what I see, has a different button that shows the battery indicator and it looks a bit different from the other one. Is there any difference? Please respond if anyone has it

    Translated from Greek ·
    0
  • kostaslilisfromgreece
    5
    kostaslilisfromgreece

    I bought it for a Milwaukee FHP or 2915 for those who know the tool I'm referring to, at first we were using simple 5Ah batteries which would heat up and run out very quickly, with this 12Ah the tool has changed, you can tell by the sound and the duration of use, it's obviously not comparable, it's an expensive battery but if you work with more demanding machines it will be very useful.

    Translated from Greek ·
    2
  • marios venetis
    5
    marios venetis

    It is on the edge of weight/performance. It doesn't tire you out because it is relatively light and lasts quite a while. However, one is definitely not enough. I have 4 m18 and 3 m12 with two chargers so I never run out. Maybe later I'll get an 8ah for the impact wrench because it's the only one that doesn't last long. The others (grinder, drill, impact wrench) are excellent

    Translated from Greek ·
    2
  • Marios_CHatziioannou
    5
    Marios_CHatziioannou

    Much more powerful battery than the 2 Ah, approximately double the power with screwdriver and more.
    Perfect!!

    Translated from Greek ·
    1
  • See all
Questions

Questions

Do you have a question about the product?

2 users have this product and can help you

Ask for the product

Description & Specifications

  • New larger cells, higher power density,
  • Better cooling
  • Lower electrical resistance
  • New high-power processor
  • Higher current handling
  • Maintains existing M18 system compatibility.
  • New shell construction
  • Improved current flow
  • Lower temperature rise

Manufacturer

Manufacturer Details

Warnings & Safety Information
Product Number
4932451245

Dimensions

Type
Battery
Lithium
Yes

Lithium


Lithium batteries offer higher energy density, lighter weight, and longer lifespan compared to NiMH. Similarly, lithium chargers are designed to safely charge batteries of this type.
NiMH
No
Back
No

Battery Features

Number of Batteries
1
Battery Voltage (V)
18 V

Battery Voltage (V)

Up to 10 volts are mostly used for tasks such as screwing/unscrewing. From 10 to 18 volts are suitable for most tasks such as screwing/unscrewing and drilling materials. Tools that are above 18 volts are considered high power and their strength is sufficient even for professional tasks. It should be noted that as the voltage of the tool increases, so does its weight.
Battery Capacity
9 Ah

Battery Capacity

The higher the number, the longer the tool's operating time. A typical continuous working time is 20-25 minutes per Ah, but it always depends on the type of work we are performing.

Popular Series

Compatibility
M18 Series

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

Reviews (22)

4.9
22
4.9
Review this product
  1. 20
  2. 2
  3. 3 stars
    0
  4. 2 stars
    0
  5. 1 star
    0
Review this product
  • Lambros_Goulas
    5
    1 out of 1 members found this review helpful
    Lambros_Goulas

    Verified purchase

    This review is about the battery capacity: 5 Ah

    Between the size 5 and size 4, prefer the latter; very close in size but the size 5 is quite a bit heavier.

    Translated from Greek ·
    Did you find this review helpful?
  • Alexandros_Koka
    5
    0 out of 2 members found this review helpful
    Alexandros_Koka
    This review is about the battery capacity: 12 Ah

    This specific battery has no difference from the other 12ah because this one, from what I see, has a different button that shows the battery indicator and it looks a bit different from the other one. Is there any difference? Please respond if anyone has it

    Translated from Greek ·
    Did you find this review helpful?
  • kostaslilisfromgreece
    5
    2 out of 2 members found this review helpful
    kostaslilisfromgreece
    This review is about the battery capacity: 12 Ah

    I bought it for a Milwaukee FHP or 2915 for those who know the tool I'm referring to, at first we were using simple 5Ah batteries which would heat up and run out very quickly, with this 12Ah the tool has changed, you can tell by the sound and the duration of use, it's obviously not comparable, it's an expensive battery but if you work with more demanding machines it will be very useful.

    Translated from Greek ·
    Did you find this review helpful?
  • marios venetis
    5
    2 out of 2 members found this review helpful
    marios venetis
    This review is about the battery capacity: 5 Ah

    It is on the edge of weight/performance. It doesn't tire you out because it is relatively light and lasts quite a while. However, one is definitely not enough. I have 4 m18 and 3 m12 with two chargers so I never run out. Maybe later I'll get an 8ah for the impact wrench because it's the only one that doesn't last long. The others (grinder, drill, impact wrench) are excellent

    Translated from Greek ·
    Did you find this review helpful?
  • Marios_CHatziioannou
    5
    1 out of 1 members found this review helpful
    Marios_CHatziioannou

    Verified purchase

    This review is about the battery capacity: 5 Ah

    Much more powerful battery than the 2 Ah, approximately double the power with screwdriver and more.
    Perfect!!

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    JIMMYS_KOUBOURAKIS

    Verified purchase

    This review is about the battery capacity: 8 Ah

    Poison both in price and in performance

    Translated from Greek ·
    Did you find this review helpful?
  • 5
    mariako1611

    Verified purchase

    This review is about the battery capacity: 5.5 Ah

  • 5
    THANASIS_KAPENIS

    Verified purchase

    This review is about the battery capacity: 5 Ah

  • 5
    Panagiotis_Argyropoulos7520

    Verified purchase

    This review is about the battery capacity: 4 Ah

  • 4
    Stavros_Giokas

    Verified purchase

    This review is about the battery capacity: 2 Ah

  • 5
    siniori_maria

    Verified purchase

    This review is about the battery capacity: 5 Ah

  • 5
    Chris.C

    Verified purchase

    This review is about the battery capacity: 4 Ah

  • 5
    Theodore_Filidis

    Verified purchase

    This review is about the battery capacity: 5 Ah

  • 5
    George_Athanasiou8186

    Verified purchase

    This review is about the battery capacity: 3 Ah

  • 5
    misha_aivazian

    Verified purchase

    This review is about the battery capacity: 5 Ah

  • 5
    balisthan

    Verified purchase

    This review is about the battery capacity: 5 Ah

  • 4
    kyriakos_kyriakou625

    Verified purchase

    This review is about the battery capacity: 5 Ah

  • 5
    Hakan_Cicekci

    Verified purchase

    This review is about the battery capacity: 2 Ah

  • 5
    sakiss3mell

    Verified purchase

    This review is about the battery capacity: 5.5 Ah

  • 5
    0kostas0

    Verified purchase

    This review is about the battery capacity: 5 Ah

  • 5
    Thanasis_K2

    Verified purchase

    This review is about the battery capacity: 5 Ah

  • 5
    Xronis_Stamatakis583

    Verified purchase

    This review is about the battery capacity: 5 Ah

  • Lambros_Goulas
    5
    Lambros_Goulas

    Between the size 5 and size 4, prefer the latter; very close in size but the size 5 is quite a bit heavier.

    Translated from Greek ·
    1
  • Alexandros_Koka
    5
    Alexandros_Koka

    This specific battery has no difference from the other 12ah because this one, from what I see, has a different button that shows the battery indicator and it looks a bit different from the other one. Is there any difference? Please respond if anyone has it

    Translated from Greek ·
    0
  • kostaslilisfromgreece
    5
    kostaslilisfromgreece

    I bought it for a Milwaukee FHP or 2915 for those who know the tool I'm referring to, at first we were using simple 5Ah batteries which would heat up and run out very quickly, with this 12Ah the tool has changed, you can tell by the sound and the duration of use, it's obviously not comparable, it's an expensive battery but if you work with more demanding machines it will be very useful.

    Translated from Greek ·
    2
  • marios venetis
    5
    marios venetis

    It is on the edge of weight/performance. It doesn't tire you out because it is relatively light and lasts quite a while. However, one is definitely not enough. I have 4 m18 and 3 m12 with two chargers so I never run out. Maybe later I'll get an 8ah for the impact wrench because it's the only one that doesn't last long. The others (grinder, drill, impact wrench) are excellent

    Translated from Greek ·
    2
  • Marios_CHatziioannou
    5
    Marios_CHatziioannou

    Much more powerful battery than the 2 Ah, approximately double the power with screwdriver and more.
    Perfect!!

    Translated from Greek ·
    1
  • See all
303,45 €
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