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ZenithVolt Surge 300W portable power bank in use
300W
Total Output
140W
Single-Port Max
250W
Dual Input
26K
mAh Capacity
78% Off — Limited Stock

ZenithVolt Surge 300W

26,250mAh of TSA-approved power. Three ports. Smart display. The only portable charger that can push a MacBook Pro to 50% in 27 minutes — and refill itself to 50% in 13.

$9.99 USD
$45 USD
Configuration:
Quantity:
1 UNIT $9.99 USD
POPULAR 2 UNITS $19.99 USD
BEST VALUE 3 UNITS $29.99 USD
ORDER NOW — $9.99 USD
✓ Free US Shipping via USPS  ·  ✓ TSA-Approved  ·  ✓ 24-Month Warranty
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Capacity Breakdown

26,250mAh.
Here's what that actually means.

Raw milliamp-hours don't tell the whole story. Here's how that capacity translates to real devices, in the real world.

MacBook Pro (M4)
0.8× full charge
140W single-port delivery27 min → 50%
99.75Wh usable capacityTSA-cleared
iPhone 16 Pro
4–5× full charges
Fast charging via USB-C26 min → 50%
Multi-device simultaneous300W total
Recharging the bank itself
50% in 13 min
250W dual USB-C inputIndustry first
40% in just 10 minutesFull in ~45 min
Charge Time Comparison

How fast is fast?
Scroll to compare.

MacBook Pro M4 — 0→50%
27min
140W single-port output
iPhone 16 Pro — 0→50%
26min
Up to 27W iPhone fast charge
ZenithVolt Surge — 0→50%
13min
250W dual-port input recharge
iPad Pro — full charge
~90min
65W USB-C delivery
3 Devices — simultaneously
300W
2× USB-C + 1× USB-A parallel
AirPods Pro — full charge
~45min
USB-C 5W delivery
Technical Specifications

Every spec.
No marketing fluff.

300W_TOTAL_OUTPUT
Two USB-C + one USB-A running simultaneously at full rated wattage
140W_SINGLE_PORT_MAX
Laptop-grade fast charging — requires 5A-rated USB-C cable (included)
250W_DUAL_INPUT
Industry-leading recharge speed. 50% capacity in 13 minutes flat
26,250mAh_CAPACITY
99.75Wh — sitting just under the 100Wh TSA carry-on limit by design
SMART_DIGITAL_DISPLAY
Real-time wattage per port, remaining capacity %, estimated time remaining
APP_CONTROL_BLUETOOTH
Per-port output management, firmware updates, and real-time monitoring via mobile app
PHANTOM_GRAY_HOUSING
6.29×1.49×2.47 in — 21.12 oz (600g). Fits in a jacket pocket or backpack front sleeve
INCLUDES_240W_CABLE
Ships with 3.3ft braided USB-C to USB-C cable rated at 240W, travel pouch, welcome guide
SAFE_TEMP_CONTROL
Active temperature management prevents heat buildup during sustained high-wattage output
24_MONTH_WARRANTY
Full manufacturer coverage. US-based customer service included
POWERIQ_4.0_TECH
Intelligent power distribution — automatically allocates wattage based on connected device demand
PASS_THROUGH_CHARGING
Recharge the unit while simultaneously powering connected devices — no interruption
Bidirectional Power

Charge it.
Charge from it.

Input — Recharging the unit
250Win
Dual USB-C input simultaneously.
50% capacity in 13 minutes.
Charging input
ZenithVolt Surge
Output — Powering your devices
300Wout
3 ports active simultaneously.
140W single-port max output.
Charging output
Travel Authorization

Carry-on cleared.
Every flight.

✈
TSA Carry-On Authorization — Portable Power Bank
ZenithVolt Surge 300W
Approved for Air Travel

Capacity: 99.75Wh — designed to sit just under the TSA's 100Wh carry-on limit. No special permits. No gate agent conversations. Goes where you go, every time.

99.75Wh Energy Capacity
<100Wh TSA Limit
Carry-On Bag Classification
No Permit Required
Smart Control

The display tells you
exactly what's happening.

Smart display and app control interface
1
Per-Port Wattage Display
The onboard display shows live wattage draw for each connected port. You know instantly if a device is fast-charging or trickle-charging through a bad cable.
2
Remaining Capacity %
Battery percentage shown in real time — not just a four-dot LED indicator. Exact numbers, always visible on the display without touching the unit.
3
App-Based Output Control
The companion app lets you set per-port output limits, monitor charge state, and push firmware updates. Useful when you're running sensitive electronics that need controlled wattage.
4
Estimated Time Remaining
Based on current draw across all ports, the unit calculates and displays estimated runtime. Stops the guesswork before a long flight or meeting.
See It In Action

Watch before
you decide.

Verified Buyers Say

From Recent Customers

Common Questions

Before you order.

Limited Stock

Stop hunting
for outlets.

300W output. 26,250mAh. TSA-cleared. Ships with a 240W cable. This is the one power bank that actually keeps pace with how you work.

$9.99 USD
$45 USD
ORDER NOW — FREE US SHIPPING
TSA-Approved 24-Month Warranty Free USPS Shipping Secure Checkout