Free USPS shipping · Estimated delivery in 5–10 business days
✓ TSA Approved⚡ 140W Fast Charge🔒 Secure Checkout↩ 24-Mo Warranty
SEE IT IN ACTION
300W IN YOUR POCKET
CHARGE PERFORMANCE
MEASURED IN MINUTES, NOT HOURS
MacBook Pro (M4 Pro) → 50%
27 min
iPhone 16 Pro → 50%
26 min
Power Bank → 50% (dual input)
13 min
Power Bank → 40% (dual input)
10 min
MacBook Pro (M4) full charge
0.8×
Data from controlled lab testing. Actual performance may vary by device and cable. A 5A USB-C cable required for 140W single-port output.
TWO-WAY POWER — IN AND OUT
⚡
Dual-Port Recharge
250W
Two USB-C inputs combined push 250W into the power bank simultaneously — the fastest dual-port recharging available in a portable device this size. From 0 to 50% in 13 minutes.
📱
Three Devices Out
300W
USB-C1 at up to 140W for laptops. USB-C2 for tablets and phones. USB-A for legacy cables. All three run simultaneously without throttling each other.
WHAT MAKES IT DIFFERENT
PRECISION ENGINEERING, VISIBLE IN EVERY SPEC
26,250Milliamp Hours · 99.75Wh
TSA-Approved Capacity
Sits just under the 100Wh airline carry-on limit at 99.75Wh. Take it on any commercial flight without checking it. Enough capacity to charge a MacBook Pro (M4) 0.8 times, or keep a phone running through four full charge cycles.
140WSingle-Port Max
Laptop-Grade Output
Delivers what a dedicated laptop charger delivers — from a device that fits in a bag pocket.
1.32Pounds · 600g
Carry Without Noticing
About the hand-feel of a 20 oz water bottle. Dimensions: 6.29 × 1.49 × 2.47 in.
SMART DISPLAY + APP CONTROL
EVERY WATT, ACCOUNTED FOR
1Per-Port Wattage Readout — the display shows exactly how many watts each connected device is pulling. You'll know instantly if your cable is capable of fast charge.
2Bluetooth App Monitoring — connect via the companion app (iOS/Android) to see real-time power flow, battery percentage, and input/output rates without touching the device.
3Output Cap Control — set maximum wattage per port directly from the app. Useful for managing sensitive devices or sharing power between users.
4Firmware Updates Over-the-Air — the device receives performance and protocol updates through the app. Your hardware stays current.
DEVICE COMPATIBILITY
EVERYTHING IN YOUR BAG
💻MacBook Pro
💻MacBook Air
📱iPhone 17/16
📱Android Phones
📟iPad / Tablets
🎧Headphones
🎮Nintendo Switch
📸Cameras
Compatible with any USB-C or USB-A device. USB-C 5A cable required for 140W max output.
✓
CLEARED FOR CARRY-ON. EVERY COMMERCIAL FLIGHT.
At 99.75Wh, the VoltForge Prime 300W sits under the 100Wh TSA carry-on limit. No checking it. No gate confiscation. Full power in the overhead bin.
This thing has a timer built in — and 300W in a portable?
I've gone through probably six portable chargers in three years. This one is different. The display tells you not just percentage but how many watts each port is pulling — so I finally know if my cable is the bottleneck or if the device itself caps out. Charged my laptop from 8% to 52% during a 40-minute layover. The 300W output is real.
Verified Buyer · USA
★★★★★
Powerful and charges fast — exactly what it claims
Charges my phone and laptop at the same time without slowing down. The 3-port setup is actually useful — not just a spec. Build quality is solid, no flex in the casing, connectors have no play. Heavier than a basic power bank but that's expected when it's running 300W. For long travel days, worth every ounce.
Tobias R. · Verified Buyer
★★★★★
Reliability, aesthetics, Bluetooth app — all solid
I use this twice daily. Full discharge, full recharge. Takes about 50 minutes to go from empty to full via dual input. The Bluetooth app is genuinely useful — I can check the battery level and per-device wattage without looking at the unit. Placing it on the charging base is dead simple. Reliability over months of heavy use has been flawless.
Renata B. · Verified Buyer
★★★★★
Fit in my cargo pocket. Charged three devices on vacation.
Took this on a week-long trip. Charged my phone, my wife's phone, and a tablet without running out before the day ended. The display showing charge speed was a feature I didn't know I needed — I could tell at a glance which device was pulling fast charge and which wasn't. Fits in a cargo pocket or drops easily into a backpack side sleeve.
Soren K. · Verified Buyer
★★★★★
Performs well and the design is genuinely premium
The screen is bright enough to read in direct sunlight. Battery percentage is exact — no blinking-LED guesswork. I use it to extend my laptop through flights where the seat outlet is dead or occupied, and it's handled that without issues across four trips. The solid feel and clean port layout make it feel like a precision tool, not just a commodity accessory.
Imani W. · Verified Buyer
★★★★★
Smaller than expected, charges laptop twice
Smaller and lighter than the previous generation but same capacity — that was the first surprise. The second was the recharge speed: two 100W USB-C bricks in simultaneously and this thing fills up in under an hour. Three ports means phone, laptop, and a legacy USB-A device all at once. Screen shows exactly what each port is pulling. Comes with a nice braided cable and carry bag.
Dashiell J. · Verified Buyer
QUESTIONS ANSWERED
Why does the power bank charge fewer times than the math suggests?
Lithium cells operate at internal voltages that don't convert 1:1 to output voltage. Conversion losses, cable resistance, and device-side charging circuits typically reduce delivered capacity by 10–15% versus nominal mAh. For the VoltForge Prime 300W at 26,250mAh, real-world device charging reflects this — still one of the highest actual-delivered capacities in the portable segment.
Can I charge the power bank and charge my devices at the same time?
Yes — the dual USB-C input and output ports operate independently. You can connect the power bank to a wall charger on one USB-C port while simultaneously charging a laptop or phone on the other ports. The display will show you both the incoming and outgoing wattage in real time.
Why does charging power decrease as the battery fills up?
This is normal lithium cell behavior. All lithium-based batteries taper charging current in the final 20–30% of capacity to protect cell health and prevent heat buildup. The power bank charges fastest from 0 to 80%, then tapers deliberately. This is not a defect — it's how premium lithium cells are designed to extend longevity.
Is it normal for the power bank to feel warm during use?
At 300W output, some warmth is expected and normal. The internal thermal management system actively monitors temperature and adjusts output to stay within safe operating range. If the unit becomes uncomfortably hot, place it on a flat surface with airflow rather than inside a bag while charging at maximum wattage.
How should I store the power bank when not in use?
Store it at roughly 50% charge in a cool, dry location. Avoid leaving it fully depleted for extended periods, as deep discharge can reduce long-term cell capacity. For travel storage over a week or more, charge to 50–70% rather than 100% for optimal cell longevity. The companion app can remind you of storage best practices.
What cable do I need for 140W single-port output?
You need a USB-C to USB-C cable rated for 5A current (often labeled 240W or 5A/48V). The included 3.3 ft cable in the package supports up to 240W and will enable full 140W output. Standard USB-C cables rated for only 3A (60W) will cap the output to 60W regardless of the power bank's capability.
READY TO CARRY
300W. 26,250mAh. FITS IN A BAG.
The VoltForge Prime 300W is built for the gap between where power is and where you need to be. Three ports. Smart display. TSA-approved. Charges a MacBook Pro to 50% in 27 minutes. 78% off while supplies last.
