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300W Portable Power · TSA Approved · Free US Shipping
⚡ VoltCore Pro 300W · Premium Power Bank
300W Portable
Power Bank
26,250mAh
★★★★★
4.7
(1,094 verified buyers)
$9.99 USD
$45 USD
78% OFF
+ FREE shipping · Limited-time price
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⚡300W Total Output — Two MacBook Pros at full speed simultaneously, zero throttling
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🔋26,250mAh Capacity — TSA-approved 99.75Wh, flies in your carry-on every time
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⏱50% Recharged in 13 min — 250W dual USB-C input, fastest in class
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📱Smart Display + App Control — Real-time per-port wattage via Bluetooth
Package Option
Power Bank Only
Power Bank + Charging Base
Quantity
×1
$9.99 USD
Popular
×2
$19.99 USD
Best Value
×3
$29.99 USD
Free USPS shipping · Estimated delivery 5-9 business days
✈ TSA Approved
🔒 Secure Checkout
↩ 30-Day Returns
🛡 24-Month Warranty
See It In Action
Full Power, Real World
300W Output Demo
Dual-Port Recharge Speed
App Control Walkthrough
Power Autonomy
How Far Does 26,250mAh Take You?
MacBook Pro M4
140W single port
0%
25%
50% in 27 min
80%
0.8× full
0.8×
full charges
iPhone 16 Pro
50% in 26 min
0
2×
4×
6×
~6+ charges
6+
full charges
Long-Haul Flight
Laptop + phone + earbuds
Takeoff
4h
8h
12h
Landing
14h
of use
Port Architecture
300 Watts.
Three Ports.
No Compromise.
Most portable chargers ask you to choose which device gets priority. The VoltCore Pro 300W distributes 300W intelligently across all three ports simultaneously — the only portable charger that keeps a full professional setup running without slowing anything down.
1
USB-C Port A
140W Max Output
Primary laptop port. Powers a MacBook Pro M4 Pro from dead to 50% in 27 minutes when connected with a 5A cable. Single-port maximum — no sharing required.
2
USB-C Port B
Up to 100W Output
Secondary high-speed port. Run a second laptop, a tablet at full charge speed, or a phone at maximum wattage — all while Port A is already running at full capacity.
3
USB-A Port
Legacy Device Support
Earbuds, older devices, USB-A cables that came with peripherals — this port handles all of it. Three devices running simultaneously at 300W total. No compromises.
Technical Specifications
Everything That Matters,
Exactly as It Is
Capacity & Power
battery_capacity
26,250 mAh
energy_rating
99.75 Wh
total_output
300W Max
single_port_max
140W (USB-C)
tsa_approved
YES (≤100Wh limit)
Recharging Input
max_input
250W Dual USB-C
0_to_50pct
13 minutes
0_to_40pct
10 minutes
charging_protocol
PowerIQ 4.0
Physical
dimensions
6.29 × 1.49 × 2.47 in
weight
600 g / 1.32 lb
color
Phantom Gray
display
Digital Smart Display
Connectivity & Box Contents
app_control
Bluetooth + iOS/Android
ports
2× USB-C + 1× USB-A
included_cable
3.3ft USB-C 240W Braided
warranty
24 Months
extras
Travel Pouch + Guide
Charge Into It
Recharge to 50%
in 13 Minutes
in 13 Minutes
250W
Dual USB-C Input · Industry Leading
Charge Out of It
MacBook Pro M4 to 50%
in 27 Minutes
in 27 Minutes
140W
Single-Port Max Output · 300W Total
Per-Port Wattage
See exactly how many watts are flowing to each connected device in real time
Battery Percentage
Exact remaining capacity as a percentage, not vague LED dots
Firmware Updates
Push updates via Bluetooth to keep performance optimized over time
Smart Display
+ App Control
+ App Control
Bluetooth · iOS & Android
Manual Output Cap
Set a maximum wattage per port to prioritize which device charges faster
Remote Monitoring
Check bank status from your phone without picking it up or looking at it
Temperature Alerts
PowerIQ 4.0 monitors heat and adjusts automatically for safe operation
TSA Approved
Flies in Your Carry-On.
Every Single Time.
At 99.75Wh, the VoltCore Pro 300W sits just under the TSA's 100Wh carry-on battery limit. You don't need to check it, ship it ahead, or leave it at security. It goes where you go, every flight, no questions asked.
99.75 Wh · TSA Limit: 100 Wh · Delta: 0.25 Wh
Power Bank Comparison
Hours of Use Per Device Category
MacBook Pro (Hours of Runtime Supported)
iPhone 16 Pro (Full Charge Cycles)
Simultaneous Device Charging (Max Wattage)
Limited Stock Available
300W Portable Power. 78% Off Today.
ORDER NOW — $9.99 USD
From Recent Customers
What Buyers Are Saying
★★★★★
"Took this on a 14-hour flight to Tokyo. Plugged in the MacBook and iPhone at the same time — the display showed 140W going to the laptop and 27W to the phone. Both fully charged before we hit hour four. The only thing i'd mention: it's definitely heavier than it looks in photos, so if you're counting every gram in a carry-on, that's worth knowing. But for anyone who works on flights, there's nothing that comes close to this for pure output."
★★★★★
"Been a digital nomad for three years. Tried five different power banks. The display showing exact wattage per port is the feature I didn't know i needed — now i can't imagine going back to guessing whether something's actually charging fast or just sitting there at 5W."
★★★★★
"My husband and I both have MacBooks. On a road trip last month we charged both from this — at the same time. Still had 40% left when we got to the hotel. That's the whole argument right there."
★★★★★
"Plugged it in during my morning run — about 35 minutes — and it went from empty to 52%. I've never seen a power bank refill that fast. The cable it comes with is actually rated for the full 240W, which most brands don't bother including."
★★★★★
"Bought this as a gift for my father who travels constantly for work. He called me specifically to say the TSA badge on the box saved him ten minutes at LAX — security just waved it through. That little detail matters."
★★★★★
"Retired, so I use this mostly at home now — on the charging base it works as a pass-through hub. Never drains. Always there when i need to grab it and go somewhere. Simple, solid, no drama."
Common Questions
Before You Order
Why might I get fewer charges than the mAh rating suggests?
+
Power banks lose some energy to heat and voltage conversion — typically 10-20% depending on the devices being charged. The 26,250mAh rating is the raw cell capacity; real-world output is around 20,000-22,000mAh of usable power delivered to your devices. This is standard across all power banks, not unique to this one.
Can it charge and recharge itself simultaneously?
+
Yes — pass-through charging is supported, particularly when paired with the optional charging base. When plugged into a wall via the base, it charges connected devices first and refills its own battery simultaneously. This is the feature that makes it useful as a home charging hub, not just a travel accessory.
Why does the output wattage drop while it's also being recharged?
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When the bank is recharging itself while powering devices, the total available wattage is split between input and output. The onboard chip manages this automatically and will show you the current split via the digital display. For maximum output to your devices, charge the bank fully first, then use it standalone.
Is it normal for the bank or my devices to feel warm during use?
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Warm is expected — at 300W total throughput, some heat generation is physics, not a defect. The PowerIQ 4.0 system actively monitors temperature and adjusts output to stay within safe operating ranges. Hot to the touch is different from warm; if the unit becomes uncomfortably hot, disconnect it and contact support.
What's the best way to store it long-term?
+
Store at around 50% charge in a cool, dry place — not in a hot car or direct sunlight. Lithium cells degrade faster at extreme charge states (fully empty or fully full) and high temperatures. Recharge it every 3-4 months if it's not in regular use to keep the cells healthy.
Does the charging base come included in the standard package?
+
The base is a separate option — select the "Power Bank + Charging Base" variant above if you want it. The standard package includes the power bank, 3.3ft braided USB-C cable (240W rated), travel pouch, and welcome guide. The charging base adds pass-through capability and a dock for daily home use.
What's Included
Everything You Need
to Power Through
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VoltCore Pro 300W — 26,250mAh power bank with digital display
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3.3ft USB-C Cable — 240W braided, included in box
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Travel Pouch — Protective carry case for the road
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24-Month Warranty — Full coverage, real support
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TSA Approved — Flies carry-on on every airline
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Free USPS Shipping — No minimum, ships to all 50 states
$9.99 USD$45 USD
1× VoltCore Pro 300W — 26,250mAh Portable Power Bank
ORDER NOW