CONNECTIVITY→Bluetooth App Control — iOS & Android
CERTIFICATION→TSA-Approved carry-on (sub-100Wh)
IN THE BOX→Power bank + 3.3ft USB-C cable (240W) + travel pouch + guide
WARRANTY→24 months — full manufacturer coverage
// FOUR REASONS IT EARNS ITS WEIGHT
Built Different. Works Harder.
🔄
Two-Way Charging
Charge the power bank and charge your devices at the same time. Pass-through capability means it works as a hub when docked — grab it when you leave and it's full.
📲
App Control
Bluetooth-paired app shows per-port output, total battery remaining, and input speed. Set custom output limits per port. Push firmware updates wirelessly. Know everything.
💻
Multi-Device Power
MacBook Pro, iPad, iPhone, and a USB-A device — all running at the same time without any of them throttling. 300W total means there's enough headroom for everything.
✈️
Travel-Ready
99.75Wh — designed to sit just under the TSA's 100Wh carry-on limit. Flies with you in cabin luggage on every major airline. No checked-bag surprises, no confiscation risk.
// SEE IT IN ACTION
Watch Before You Decide
// DEMO: Timer test — 300W output measured live
// OVERVIEW: Dual-port charging and app walkthrough
// TRAVEL: TSA approval and carry-on portability test
"Timed it myself — 300W output is real. The display shows exactly what each port is pulling. Connected my MacBook Pro and iPhone at the same time and watched both numbers climb. The timer feature in the app is something I didn't expect to find useful, but I use it every day now."
Verified Buyer
MacBook Pro + iPhone 16 Pro
"Charges my phone and laptop incredibly fast. The 3-port setup handles multiple devices without any of them slowing down. Build quality feels substantial — not hollow, not cheap. Heavy, yes, but that's what 26,250mAh of real capacity feels like. Worth every penny for serious travel days."
Valentina R. — New York, NY
MacBook Air M3 + Samsung S25
"I use this full charge twice a day and a full recharge takes about 50 minutes — that's genuinely fast for a bank this size. The Bluetooth pairing was effortless and the app shows power draw per device without me having to look at the physical unit. The charging dock makes it a permanent desktop fixture when I'm home."
Dashiell M. — Austin, TX
iPad Pro + MacBook + USB-A legacy device
"Took it on a 14-hour travel day — three flights, two layovers. My MacBook started the day at 100% and ended at 78%. My iPhone never dipped below 60%. The display showing remaining capacity and per-port speed is the kind of information I didn't know I needed until I had it. Cargo pocket fit on the outbound, backpack side pouch on the return."
Soren K. — Seattle, WA
MacBook Pro 14" + iPhone 16 Pro Max
"The display is genuinely useful — not just a battery percentage bar, but actual wattage readout per port. Plugged in a cable that supposedly supported 100W and watched it deliver 67W. That kind of transparency is rare. Bought it for travel, use it daily around the house as a wireless extension cord for the laptop."
Renata L. — Chicago, IL
MacBook Pro M4 + Switch 2
"Smaller and lighter than I expected for 26K capacity. Fits in a jacket inner pocket without pulling the lining down. Screen is bright enough to read in direct sunlight. App pairs in under 10 seconds. I can charge it at 200W using two USB-C bricks simultaneously — filled up in under an hour. Solid braided cable included."
Imani T. — London, UK
ThinkPad X1 + iPhone 17 Pro
// VOLTVAULT PRIME VS. TYPICAL COMPETITOR
The Numbers Don't Lie
SPECIFICATIONVOLTVAULT PRIMETypical 20K Bank
Battery Capacity26,250mAh20,000mAh
Max Total Output300W65–100W
Single-Port Max140W45–65W
Recharge Speed250W Dual-Input65W Single-Input
To 50% Bank Fill13 minutes45–60 minutes
Charging Ports3 (2×C + 1×A)2 (1×C + 1×A)
Real-Time DisplayPer-port wattageLED dots only
App ControlBluetooth + firmwareNone
TSA ApprovedYes — 99.75WhVaries
Warranty24 months12 months
// COMMON QUESTIONS
Before You Order
Yes. The VoltVault Prime is rated at 99.75Wh — just under the TSA's 100Wh carry-on limit for lithium batteries. This means it flies legally in your carry-on luggage on virtually all commercial airlines worldwide. It cannot go in checked baggage (like all lithium batteries), but carry-on is fully approved.
Yes — 140W single-port output requires a 5A-rated USB-C cable. A standard 3A cable will cap out around 60W. The included 3.3ft cable in the box is rated to 240W, so it handles the full output. If you're using a third-party cable, check its amperage rating before expecting maximum speed.
Yes — two-way charging is a core feature. You can have the power bank connected to a wall charger (recharging itself) while simultaneously charging your laptop and phone through the output ports. When docked on the optional charging base, it operates in pass-through mode — devices charge without drawing down the battery until the bank itself is full.
This is normal lithium battery behavior. Fast charging protocols (like Power Delivery) run at peak wattage during the first 60–70% of a charge cycle, then taper to protect battery longevity. You'll see the display drop from, say, 45W to 18W as your device approaches full charge. The power bank itself does the same when recharging — fastest in the first half, slower in the second.
Mild warmth is completely normal at 300W output — that's a significant amount of power moving through a compact unit. The built-in safe temperature control system monitors heat in real time and adjusts output if temperatures rise beyond safe thresholds. You'll notice the unit gets warm, not hot. If it ever gets uncomfortably hot, check your cable and disconnect any devices that may be drawing unusually high current.
For storage longer than 3 months, keep the battery at 40–60% charge in a cool, dry location away from direct sunlight. Avoid storing at 100% or 0% — both accelerate battery degradation. The travel pouch included in the box protects the unit and ports during storage or transit. Recharge from storage level every 3 months if not in regular use.
Carry Power That Matters
26,250mAh · 300W · TSA-Approved · Ships via USPS
$9.99 USD $45 USD
$9.99 USD $45 USD1× VoltVault Prime 300W Power Bank
Free Shipping via USPS · Arrives in 3–7 business days
