Features
- Two-way USB-C charging (battery can be charged and can charge personal devices)
- 100W USB-C PD 3.0 port (battery side) for higher power delivery compared with USB-A
- Pulsing LED on USB-C port to indicate charging/discharging status
- Phase-change material around cells for temperature management
- Approximately 20% smaller footprint compared to previous USB-A port batteries
- Compatible with SKIL PWRCORE 20 20V tools
- Includes a multifunctional 45W USB-C PD charger
- Typical charge time for the 2.0Ah battery: ~55 minutes
Specifications
Voltage (V) | 20 V |
Battery Chemistry | Lithium-ion |
Capacity | 2.0 Ah (40 Wh) |
Number Of Cells | 5 |
Max Battery Height | 2.0 in |
Max Battery Length | 4.9 in |
Max Battery Width | 3.1 in |
Battery Weight | 0.86 lb |
Battery Level Indicator | Yes |
Usb Charging (Output) | Yes (integrated USB-C port) |
Battery Usb C Pd Rating (Port) | 100W USB-C PD 3.0 (per product text) |
Included Charger | PWRCORE 20 20V 45W USB-C PD Charger (45W) |
Charger Model (Included) | PD0045B-00 |
Battery Model (Included) | BY5100B-00 |
Included Accessories | (1) Battery Jacket; (1) 0.5 m USB-C to USB-C cable |
Typical Charge Time (2.0 Ah Battery) | Approximately 55 minutes |
Related Tools
A 20V lithium-ion battery and USB-C power delivery charger packaged as a starter kit. The battery includes an integrated USB-C port that can output power to devices and accepts two-way charging. The cell pack uses phase-change material for temperature management. A multifunctional 45W USB-C Power Delivery charger is included to charge compatible batteries and personal devices.
Model Number: CB5100B-11
Skil PWR CORE 20 2.0Ah 20V USB-C Battery and Charger Starter Kit Review
Why this compact USB‑C kit has earned a spot in my tool bag
I’ve been waiting for a jobsite battery that behaves more like modern tech, and the Skil USB‑C battery kit finally feels like the right blend of tool power and everyday charging convenience. It’s a 2.0Ah, 20V PWRCore pack with a built‑in USB‑C Power Delivery port and a 45W USB‑C charger in the box. On paper, that sounds simple. In practice, it changes how I pack for a day’s work.
What’s in the kit
- PWRCore 20 2.0Ah battery with integrated USB‑C PD port
- 45W USB‑C PD wall charger
- Short USB‑C to USB‑C cable (0.5 m)
- A slim “jacket”/sleeve for the battery
The battery itself is compact—about 4.9 x 3.1 x 2.0 inches—and only 0.86 lb. It slides onto every PWRCore 20 tool I tried and carries the usual charge‑level indicator plus a pulsing LED by the USB‑C port to flag charge/discharge activity.
Design, build, and that USB‑C port
Physically, this is one of the tidiest 20V packs I’ve used. Skil says the footprint is about 20% smaller than the older USB‑A battery, and you notice it in a tool belt or compact drill. The integrated USB‑C port is the headline feature, and it’s two‑way: it can charge your devices, and the battery itself can be charged through that same port. That means fewer bespoke chargers to haul around.
The pulsing LED at the port is genuinely helpful at a glance. Indoors it’s easy to read; in direct sunlight it’s less visible, so I still lean on the battery’s level indicator for a quick check.
One practical note: a USB‑C port on a battery is great until sawdust meets connectors. The included jacket helps, but I’d still like a tighter dust cap or flap over the port when the jacket isn’t on. Keep the port clear and it’s been reliable.
Power delivery in the real world
Skil rates the battery’s USB‑C port to USB‑C PD 3.0 with up to 100W capability. Remember the pack is 40Wh (2.0Ah at 20V nominal), so if you actually pull high wattage, it’ll drain quickly. In my testing:
- Phones and tablets negotiated typical PD rates (18–27W). That’s a sweet spot for this pack; it’ll recharge a modern phone multiple times, even with conversion losses.
- A 13‑inch laptop negotiated 45–65W depending on the model and cable. That’s enough to work and charge slowly, or maintain battery under moderate workloads. Perfect for quick top‑offs between tasks.
- High‑draw laptops that expect 100W will step down and still charge, but don’t expect sustained 100W from a 40Wh pack to be practical.
The important part is how seamless it feels. Plug in, see the PD handshake, and power flows. It’s the first tool battery I’ve used where I can leave my “power bank” at home and not compromise.
Two ways to charge, fewer chargers to carry
Charging the pack through USB‑C with the included 45W charger was reliable and fast. From empty to full took me about 50–60 minutes, right on target with the stated ~55 minutes. That’s comparable to conventional slide‑on chargers for a 2.0Ah pack but with the advantage that I can also charge the battery off a vehicle USB‑C outlet, a PD wall brick I already own, or even a PD‑capable solar panel. I like redundancy, and this kit delivers it.
Tip: Use a proper 60–100W USB‑C cable if you want higher PD rates to a laptop or to charge the battery quickly from third‑party chargers. The included 0.5 m cable is fine, but the short length isn’t always convenient on a bench or in a truck.
On tools: runtime and balance
On PWRCore 20 tools, the pack behaves like a good compact 2.0Ah battery should:
- Drills/drivers, oscillating tools, inflators, and inspection lights felt nimble with this pack’s lighter weight.
- For heavier, continuous‑draw tools (circular saws, grinders), I treat this battery as an emergency or short‑task option. It will run them, but I’d step up to a 4.0Ah or 5.0Ah for projects.
Balance is excellent on compact tools; the slightly smaller footprint compared to older packs is noticeable when you’re working overhead or in tight spaces.
Thermal performance and phase‑change material
Skil packs phase‑change material around the cells to buffer heat. Across a couple of “worst case” scenarios—charging a laptop at 45W for an extended session and then driving screws with an impact driver—the pack got warm but never uncomfortably hot. Cool‑down times were short, and charging didn’t throttle aggressively unless I deliberately left it in a hot vehicle cab. The thermal design is doing its job.
Usability details that add up
- The battery level indicator is accurate and updates predictably. I can estimate remaining runtime on a compact drill within a few bars’ confidence.
- The PD status LED near the port makes it obvious when the battery is powering a device versus being charged. That’s useful when you’re swapping cables in a dim crawlspace.
- The included jacket improves grip and offers light protection when the battery is used as a makeshift power bank on a desk or tailgate.
What I’d change
- Capacity options in the same format: A 2.0Ah pack is ideal for weight and size, but I’d love a 4.0Ah USB‑C version for longer laptop charging sessions or extended tool runtime without stepping up in bulk too much.
- Port protection: A more robust dust cover for the USB‑C opening would inspire confidence on woodworking jobs. The jacket helps, but a built‑in flap would be better.
- Charger headroom: The included 45W PD brick is versatile and compact, but if your laptop expects 65W+, you’ll still want your usual charger for desk use. Not a deal‑breaker, just an expectation to set.
Who this kit suits best
- Tradespeople and DIYers already on the PWRCore 20 platform who want a compact, multi‑purpose pack that also charges devices.
- Mobile techs who live out of a truck and value charging flexibility (vehicle PD outlet, jobsite power, shop).
- Anyone who wants to carry one charger that can top up the battery, the phone, and a small laptop.
If you’re primarily running high‑draw tools for long sessions, keep this as your lightweight auxiliary pack and add a higher‑capacity battery for the main event.
Value and platform thinking
The real value here isn’t just runtime on tools; it’s consolidation. One battery and one PD charger cover tools and personal electronics. That means fewer chargers, fewer cables, and faster turnarounds between tasks. If you’re building out a PWRCore 20 kit, starting with a USB‑C capable battery like this sets you up for a more flexible workflow from day one.
Recommendation
I recommend the Skil USB‑C battery kit for anyone in the PWRCore 20 ecosystem who values portability and modern charging. It’s a well‑built 2.0Ah pack with genuinely useful two‑way USB‑C PD, a compact and capable 45W charger, and thoughtful thermal management. The capacity is best suited to compact tools and mobile device charging, and while the exposed port could use a sturdier dust solution, the included jacket mitigates most of that concern. If you want a lightweight pack that pulls double duty—powering tools on the clock and recharging your phone or laptop between tasks—this kit earns its keep.
Project Ideas
Business
Pop‑Up Charging Booth
Set up at markets, festivals, and conferences with multiple SKIL batteries and PD hubs to offer paid phone/laptop charging. Provide fast cables, clear pricing (per 15 minutes/flat fee), and seat signage. Hot‑swap batteries and keep spares on the 45W chargers. Upsell cable sales and quick device cleanings.
Event POS Backup Kits
Rent kits to vendors: each includes the battery, a belt-clip holster, a 100W USB‑C cable, and any needed PD trigger cables (e.g., 12V for receipt printers). Ensures card readers/tablets stay powered through peak hours or outages. Offer weekend packages with extra packs and on‑site support.
Creator Power Pack Rentals
Curate portable power kits for content creators: 2–4 batteries, a compact PD LED panel, dummy batteries for popular cameras, and a cable bundle. Price per day with discounted weekly rates. Add a quick-start card showing expected runtimes (e.g., 40Wh ≈ ~30–40 minutes at 60W) and recharge tips.
SKIL Battery Holsters & Mounts
Design and sell 3D‑printed holsters, tripod plates, and belt mounts tailored to the PWR CORE 20 battery with cable strain relief and QR labels for wattage profiles. Offer branded versions for crews. Sell on Etsy/Amazon with STL upsells for makers.
Small Office Internet Backup Service
Offer a subscription to keep routers/ONTs alive during outages. Install a battery cradle with a PD‑to‑12V trigger, provide two batteries, and schedule monthly health checks. During storms, swap in fresh packs or supply extras. Simple, low‑cost resilience for remote‑work teams.
Creative
Field Photo/Video Power Sled
Build a lightweight camera-cage sled that mounts the 20V battery on a quick-release plate and routes its USB-C PD to: (1) a dummy battery adapter for your mirrorless camera and (2) a small LED panel. Use a PD splitter/hub that can negotiate 65–100W to share power, and short right-angle cables for tidy runs. The pulsing LED helps monitor status on set. Expect ~30–45 minutes powering a 60W rig per 2.0Ah pack; carry spares and recharge in ~55 minutes.
USB‑C PD Soldering Field Kit
Assemble a pocket repair kit around a PD soldering iron (e.g., Pinecil/TS80). Add tips, tweezers, flux, and a foldable silicone mat. The battery’s up-to-100W USB‑C PD powers the iron for on‑site fixes; 40 Wh yields multiple small joints or ~30 minutes of moderate heat. Recharge with the included 45W charger between jobs. Great for drone, guitar pedal, or RC repairs on the go.
Router/Modem Backup Pod
Create a compact cradle that holds the battery and a USB‑C‑to‑12V PD trigger cable to run a home router or modem during outages. Add a velcro cable wrap and a label showing which PD voltage profile to use. For automatic switchover, pair with a small PD UPS module; otherwise, manually plug in during outages. Keeps internet up for meetings when mains power drops.
Time‑Lapse and Astro Pack
Build a small clamp-on pack for tripods to power a mirrorless camera via USB‑C dummy battery for time-lapse or night shots. Include a cable clip and an inline PD meter to watch draw. For low-power bodies (5–10W), a single 2.0Ah pack provides multi‑hour sessions; swap packs for longer sequences. The compact size minimizes wind profile on lightweight tripods.
Backpacker’s Micro Power Station
Make a rugged, lightweight board with tie‑downs for the battery, a short 100W USB‑C cable, and a small pouch of adapters (USB‑C to Lightning, USB‑C to DC barrel via PD trigger). It charges phones, headlamps, action cams, and gimbals off‑grid. The two‑way USB‑C lets you top up the battery from a campsite solar PD panel on sunny days.