Search  for anything...

SKIL PWRCORE 12 4.0Ah 12V USB-C Battery-BY5040A-00

  • Based on 772 reviews
Condition: New
Checking for the best price...
$69.00 Why this price?
New Year Deal · 54% off was $149.38

Buy Now, Pay Later


As low as $11.50 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, Jan 12
Order within 14 hours and 28 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Style: 12V 4.0Ah Battery_USB-C


Features

  • 60W USB-C PD 3.0 PORT - Up to 12X higher power than USB-A to power a wide range of devices
  • TWO-WAY RAPID CHARGING - Charge the battery or personal devices via the USB-C port
  • LED FUEL GAUGE - Displays current battery charge status in 25 percent increments
  • ONE BATTERY, MANY TOOLS - Compatible with all 12V products in the SKIL PWR CORE 12 system
  • COMPATIBLE WITH USB-C CHARGERS - Charge battery with any SKIL 12V charger (sold separately) or any household USB-C charging block

Description

Compatible with all SKIL 12V tools in the PWR CORE 12™ system, the compact, lightweight PWR CORE 12™ 4.0Ah 12V USB-C Battery features two-way rapid charging via USB-C, allowing you to charge the battery or personal devices with its integrated USB-C port. Its USB-C PD 3.0 port delivers up to 12X higher power than SKIL batteries with USB-A ports to power a wide range of devices or fast charge them when you’re on-the-go. Its LED fuel gauge displays current battery charge status in 25 percent increments. When it’s time to recharge, this 4.0Ah battery will charge on any SKIL 12V charging dock as well as any household USB-C charging block.

Brand: Skil


Color: Red


Product Dimensions: 3.74"D x 2.8"W x 2.48"H


Item Weight: 0.61 Kilograms


Output Voltage: 12 Volts


Manufacturer: ‎Skil


Part Number: ‎BY5040A-00


Item Weight: ‎1.34 pounds


Product Dimensions: ‎3.74 x 2.8 x 2.48 inches


Item model number: ‎BY5040A-00


Batteries: ‎1 12V batteries required. (included)


Color: ‎Red


Style: ‎12V 4.0Ah Battery_USB-C


Finish: ‎Brushed


Material: ‎Blend


Pattern: ‎Solid


Shape: ‎Rectangular


Power Source: ‎Battery Powered


Item Package Quantity: ‎1


Certification: ‎FCC, UL


Included Components: ‎(1) Battery Jacket;(1) USB C Cable;, (1) SKIL PWR CORE 12™ 4.0Ah 12V USB-C Battery;


Batteries Included?: ‎Yes


Batteries Required?: ‎Yes


Battery Cell Type: ‎Lithium Ion


Date First Available: January 9, 2025


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Jan 12

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Great battery and charger kit!
Style: 12V 2.0Ah Battery_USB-C w/Charger
Works great. A little more than I'd have like to have paid as I but it's the original brand, so on par for the price. I got the drill and impact drill combo and needed more batteries since the combo only came with one. Now, I can use both drills at the same time while charging an extra battery and just rotate as I need. The fact that you do not necessarily need a specialized charger and that these have USB-C ports makes it easy to forego the included charger and plug it into any charger(s) you already use at home. Recommended. ... show more
Reviewed in the United States on January 4, 2026 by DJ MinWah

  • excellent value
Style: 12V 4.0Ah Battery_USB-A
great product. fits perfectly, works very well, lasts a long time. exactly as advertised. Strongly recommend this product
Reviewed in the United States on March 8, 2025 by John G. Warkentin

  • I'm not running out of battery any time soon.
Style: 12V 2.0Ah Battery_USB-C w/Charger
I love that these are USB-C charged, it can be used to power other USB devices, but mostly that they are reliable, and that this was a waaaayyyyy better price than elsewhere.
Reviewed in the United States on December 26, 2025 by Jerzee

  • A great 12v volt Skil battery
Style: 12V 4.0Ah Battery_USB-A
I love the Skil 12 volt platform. And this battery does not disappoint. Strong and reliable run times throughout my projects. The additional USB charger port is not only a bonus but pure genius! How the other tool manufacturers out there have not added this is sad. Great battery. A must buy if you’re a Skil lover. ... show more
Reviewed in the United States on June 22, 2024 by Goose184

  • Nice
Style: 12V 2.0Ah Battery_USB-C w/Charger
Thanks
Reviewed in the United States on November 16, 2025 by Marvin Gainous

  • Long lasting.
Style: 12V 4.0Ah Battery_USB-A
I have been eager to get this battery due to skil only selling 2ah batteries on their combo kits. This battery has lasted me all day in one charge while doing multiple tasks. I recommend getting the battery if you do things at home such as drilling, buffering and/or cutting.
Reviewed in the United States on July 11, 2023 by Evan

  • Packs a little more punch!
Style: 12V 4.0Ah Battery_USB-C
Good battery, gave a little more kick to my skil pwrcore12 3/8 impact wrench and was able to remove lug nuts from my Yukon (which I don't recommend, was just for testing purposes) not to say that there's anything wrong with the 2ah but if you can afford it get the 4ah. Also like the type-c connection so I don't need a base charger. ... show more
Reviewed in the United States on June 6, 2025 by Arthur Martinez

  • Must Have
Style: 12V 4.0Ah Battery_USB-A
I absolutely love these. They do take a while to charge but I only need to charge them about once a month. I will definitely be getting more of these.
Reviewed in the United States on August 19, 2025 by Amazon Customer

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...