Cordless Power Tool Batteries

Replacement Power Tool Batteries – Recharge Your Tools with Confidence

Keep your tools running like new with our high-quality replacement power tool batteries. At Battery Mart, we carry affordable, reliable battery replacements for all the leading brands, including DeWalt, Makita, Milwaukee, Black & Decker, Craftsman, Ryobi, Bosch, and more. Whether you're on the job site or tackling projects at home, our batteries deliver the power, performance, and runtime you need.

Each battery is designed to meet or exceed OEM specifications, ensuring a perfect fit and long-lasting performance. From cordless drills to saws and impact drivers, we have the right battery to get the job done—all backed by our 1-year warranty and 60-day money-back guarantee.

Don't let a dead battery stop your progress. Shop our replacement power tool batteries below and keep your tools—and your productivity—fully charged.

Why Buy Power Tool Batteries from Battery Mart?

  • Compatible replacements for top brands & models.
  • Fresh, high-capacity cells for maximum runtime.
  • Built for durability and consistent power output.
  • Easy ordering and fast shipping.
  • Excellent customer support and product knowledge.

AEG

AL-KO

Atlas Copco

Black & Decker

Bosch

Bostitch

Brundy

Chicago Pneumatic

CMI

Craftsman

DeWalt

Dremel

EGO

Einhell

Fein

Festool

Gardena

Greenworks

Gude

Hilti

Hitachi

Huskie

Karcher

Kobalt

Kress

Lincoln

Lux-Tools

Makita

Matrix

Max

Meister Craft

Metabo

Milwaukee

National

Panasonic

Paslode

Porter Cable

Ramset

Ridgid

Ryobi

Saft

Senco

Skil

Stanley

Ultralast

Wolf Garten

Worx

Wurth

Lithium Power Tool Batteries

Universal Battery Chargers
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Replacement SKIL 144BAT Power Tool Battery (14.4 Volt, 2.1 Ah, NiMH)
Item #: CS-SHD144PW  |    

Replacement SKIL 144BAT Power Tool Battery (14.4 Volt, 2.1 Ah, NiMH)

Replacement SKIL 144BAT Power Tool Battery (14.4 Volt, 2.1 Ah, NiMH)

Item #: CS-SHD144PW
 
Voltage: 14.4 Volt / 2100 mAh
• NiMH
• Dimensions: 4.26" / 3.62" / 4.41"
• Weight: 2.13 lbs
• Warranty: 1 Year
• See All Compatible Models
Price:
$99.95
Price: $99.95
QTY:
Replacement SKIL 144BAT Power Tool Battery (14.4 Volt, 3.3 Ah, NiMH)
Item #: CS-SHD144PX  |    

Replacement SKIL 144BAT Power Tool Battery (14.4 Volt, 3.3 Ah, NiMH)

Replacement SKIL 144BAT Power Tool Battery (14.4 Volt, 3.3 Ah, NiMH)

Item #: CS-SHD144PX
 
Voltage: 14.4 Volt / 3300 mAh
• NiMH
• Dimensions: 4.41" / 4.27" / 3.62"
• Weight: 2.20 lbs
• Warranty: 1 Year
• See All Compatible Models
Price:
$120.95
Price: $120.95
QTY:
Replacement SKIL SB14A Power Tool Battery (14.4 Volt, 2.1 Ah, NiMH)
Item #: CS-SHD587PW  |    

Replacement SKIL SB14A Power Tool Battery (14.4 Volt, 2.1 Ah, NiMH)

Replacement SKIL SB14A Power Tool Battery (14.4 Volt, 2.1 Ah, NiMH)

Item #: CS-SHD587PW
 
Voltage: 14.4 Volt / 2100 mAh
• NiMH
• Dimensions: 5.26" / 3.27" / 2.85"
• Weight: 1.97 lbs
• Warranty: 1 Year
• See All Compatible Models
Price:
$98.95
Price: $98.95
QTY:
Replacement SKIL 92931 Power Tool Battery (12 Volt, 2.1 Ah, NiMH)
Item #: CS-SHD736PW  |    

Replacement SKIL 92931 Power Tool Battery (12 Volt, 2.1 Ah, NiMH)

Replacement SKIL 92931 Power Tool Battery (12 Volt, 2.1 Ah, NiMH)

Item #: CS-SHD736PW
 
Voltage: 12 Volt / 2100 mAh
• NiMH
• Dimensions: 5.38" / 2.88" / 2.80"
• Weight: 1.67 lbs
• Warranty: 1 Year
• See All Compatible Models
Price:
$87.95
Price: $87.95
QTY:
Replacement SKIL 92931 Power Tool Battery (12 Volt, 3.3 Ah, NiMH)
Item #: CS-SHD736PX  |    

Replacement SKIL 92931 Power Tool Battery (12 Volt, 3.3 Ah, NiMH)

Replacement SKIL 92931 Power Tool Battery (12 Volt, 3.3 Ah, NiMH)

Item #: CS-SHD736PX
 
Voltage: 12 Volt / 3300 mAh
• NiMH
• Dimensions: 5.46" / 2.87" / 2.80"
• Weight: 1.89 lbs
• Warranty: 1 Year
• See All Compatible Models
Price:
$98.95
Price: $98.95
QTY:
Replacement SKIL B12A-LI Power Tool Battery (10.8 Volt, 1.5 Ah, Li-Ion)
Item #: CS-SKB120PW  |    

Replacement SKIL B12A-LI Power Tool Battery (10.8 Volt, 1.5 Ah, Li-Ion)

Replacement SKIL B12A-LI Power Tool Battery (10.8 Volt, 1.5 Ah, Li-Ion)

Item #: CS-SKB120PW
 
Voltage: 10.8 Volt / 1500 mAh
• Li-Ion
• Dimensions: 3.29" / 2.01" / 1.83"
• Weight: 0.51 lbs
• Warranty: 1 Year
• See All Compatible Models
Price:
$38.95
Price: $38.95
QTY:
Replacement SKIL B12A-LI Power Tool Battery (10.8 Volt, 2.5 Ah, Li-Ion)
Item #: CS-SKB120PX  |    

Replacement SKIL B12A-LI Power Tool Battery (10.8 Volt, 2.5 Ah, Li-Ion)

Replacement SKIL B12A-LI Power Tool Battery (10.8 Volt, 2.5 Ah, Li-Ion)

Item #: CS-SKB120PX
 
Voltage: 10.8 Volt / 2500 mAh
• Li-Ion
• Dimensions: 3.29" / 2.01" / 1.83"
• Weight: 0.54 lbs
• Warranty: 1 Year
• See All Compatible Models
Price:
$46.95
Price: $46.95
QTY:
Replacement SKIL BY500101 Power Tool Battery (12 Volt, 2.0 Ah, Li-Ion)
Item #: CS-SKR582PW  |    

Replacement SKIL BY500101 Power Tool Battery (12 Volt, 2.0 Ah, Li-Ion)

Replacement SKIL BY500101 Power Tool Battery (12 Volt, 2.0 Ah, Li-Ion)

Item #: CS-SKR582PW
 
Voltage: 12 Volt / 2000 mAh
• Li-Ion
• Dimensions: 4.07" / 2.69" / 1.81"
• Weight: 0.94 lbs
• Warranty: 1 Year
• See All Compatible Models
Price:
$49.95
Price: $49.95
QTY:
Replacement SKIL BY500101 Power Tool Battery (12 Volt, 4.0 Ah, Li-Ion)
Item #: CS-SKR582PX  |    

Replacement SKIL BY500101 Power Tool Battery (12 Volt, 4.0 Ah, Li-Ion)

Replacement SKIL BY500101 Power Tool Battery (12 Volt, 4.0 Ah, Li-Ion)

Item #: CS-SKR582PX
 
Voltage: 12 Volt / 4000 mAh
• Li-Ion
• Dimensions: 4.07" / 2.69" / 2.60"
• Weight: 1.32 lbs
• Warranty: 1 Year
• See All Compatible Models
Price:
$60.95
Price: $60.95
QTY:
Replacement SKIL BY519702 Power Tool Battery (20 Volt, 2.0 Ah, Li-Ion)
Item #: CS-SKW573PW  |    

Replacement SKIL BY519702 Power Tool Battery (20 Volt, 2.0 Ah, Li-Ion)

Replacement SKIL BY519702 Power Tool Battery (20 Volt, 2.0 Ah, Li-Ion)

Item #: CS-SKW573PW
 
Voltage: 20 Volt / 2000 mAh
• Li-Ion
• Dimensions: 4.76" / 2.95" / 1.94"
• Weight: 1.22 lbs
• Warranty: 1 Year
• See All Compatible Models
Price:
$60.95
Price: $60.95
QTY:
Replacement SKIL BY519702 Power Tool Battery (20 Volt, 4.0 Ah, Li-Ion)
Item #: CS-SKW573PX  |    

Replacement SKIL BY519702 Power Tool Battery (20 Volt, 4.0 Ah, Li-Ion)

Replacement SKIL BY519702 Power Tool Battery (20 Volt, 4.0 Ah, Li-Ion)

Item #: CS-SKW573PX
 
Voltage: 20 Volt / 4000 mAh
• Li-Ion
• Dimensions: 4.76" / 2.95" / 2.65"
• Weight: 1.80 lbs
• Warranty: 1 Year
• See All Compatible Models
Price:
$76.95
Price: $76.95
QTY:
Replacement Greenworks GWG40B2 Lawn & Garden Tools Battery (40V, 3.0 Ah, Li-Ion)
Item #: CS-GWP410PW  |    

Replacement Greenworks GWG40B2 Lawn & Garden Tools Battery (40V, 3.0 Ah, Li-Ion)

Replacement Greenworks GWG40B2 Lawn & Garden Tools Battery (40V, 3.0 Ah, Li-Ion)

Item #: CS-GWP410PW
 
Voltage: 40 Volt / 3000 mAh
• Li-Ion
• Dimensions: 6.52" / 3.31" / 3.39"
• Weight: 2.98 lbs
• Warranty: 1 Year
• See All Compatible Models
Price:
$142.95
Price: $142.95
QTY:

Frequently Asked Questions about Power Tool Batteries

How long should I charge my battery?
How long you charge your power tool battery depends on many factors such as how discharged the battery is. Typically an overnight charge is sufficient to charge a battery, but in some cases it can take longer. Often, most chargers have an indicator light telling you when your battery is fully charged and ready to be used.

Can I use a NiCD or NiMH battery?
If your tool currently has a NiCD battery, you can upgrade to a NiMH battery as long as your charger will accept a NiMH battery. The same goes for if you have a NiMH battery and want to switch to a NiCD battery. One of the biggest differences between these two rechargeable chemistry's is that NiMH batteries generally have a larger capacity.

How do I properly dispose of my old battery?
You can usually take your batteries to a local battery store or scrap yard to be properly disposed of.