TerraVolt Prime 140W Power Bank
Charges a 16" MacBook Pro to 50% in 33 minutes. Three ports live simultaneously. Real-time LCD shows watts per port, remaining capacity, and time-to-empty. TSA carry-on approved.
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See every watt. Know every second.
Most power banks are black boxes. The TerraVolt Prime 140W gives you full situational awareness through its built-in smart LCD. The display cycles through real-time output wattage per port, total input power while recharging, battery percentage, ambient temperature, and a live countdown to empty at the current draw rate.
It also tracks cumulative battery cycles — so you always know the health of your investment. When charging three devices simultaneously, you can watch each port's draw update in real time. It's the power bank equivalent of a cockpit instrument panel.
Wall-charger speed. No wall required.
Budget power banks trickle-charge laptops at 18-30W. The TerraVolt Prime 140W uses Power Delivery 3.1 to output up to 140W — the same wattage spec as dedicated laptop wall adapters. A 16" MacBook Pro reaches 50% in 33 minutes. MacBook Air (M3): 33 minutes to 50%. iPhone 16 Pro: 26 minutes to 50%.
The two USB-C ports (C1 and C2) each support up to 140W when used alone. With both USB-C ports active simultaneously, the bank intelligently distributes power between them. The USB-A port handles phones and accessories at up to 18W.
For fastest recharging of the bank itself, use a 140W USB-C charger (sold separately). A 100W charger also works and reaches full in approximately one hour. The included 140W-rated USB-C to USB-C cable handles the full spec.
Eight reasons it outperforms everything else.
6.1 × 2.1 × 1.9 inches. Unlimited power range.
At 140Wh energy content — just below the TSA's 160Wh carry-on ceiling — the TerraVolt Prime 140W flies on every major commercial airline without checking a bag or filing special approvals. The dimensions are 6.13" × 2.15" × 1.95", and it weighs 22 oz (595g). Dense, yes. But that density is 24,000mAh of lithium-ion capacity across six cells.
Slip it into the dedicated travel pouch (included), toss it in your carry-on or daypack, and board knowing your MacBook, iPad, and phone all have multiple charges waiting. For remote work, international travel, long-haul flights, or any scenario where a wall outlet is uncertain — this is the decisive gear upgrade.
See the technology perform.
How it stacks up.
| Feature | TerraVolt Prime 140W | Typical 65W Power Bank |
|---|---|---|
| Max output wattage | ✓ 140W PD 3.1 | ✗ 65W max |
| Laptop charging speed | ✓ Full rated speed | ✗ Partial / trickle |
| Simultaneous ports | ✓ 3 ports active | ✗ 1-2 ports |
| Smart display | ✓ Live LCD, watts + % | ✗ LED dots only |
| Recharge time | ✓ ~52 min (140W) | ✗ 2-3+ hours |
| Capacity | ✓ 24,000mAh / 140Wh | ✗ Typically 20,000mAh |
| TSA carry-on | ✓ Approved (140Wh) | ✗ Varies / check required |
| Cycle count tracking | ✓ Shown on display | ✗ Not available |
| Temperature monitoring | ✓ Real-time on display | ✗ Not monitored |
| Warranty | ✓ 24 months | ✗ 12 months typical |
17,041 verified ratings. Here's what owners say.
Beast of a power bank for laptop owners — 4-month update
Charged my M1 MacBook Pro, 2017 12.9" iPad Pro, and iPhone XR simultaneously: MacBook Pro 70%, iPad Pro 58%, iPhone XR 78% — all from one session. Recharges to 96% in one hour on a 90W charger. Smart display indicates battery percentage, wattage per port, and recharge estimate. Recharges laptops at full speed. Doesn't come with a wall charger — you'll need your own 100W+ USB-C adapter. Overall: the best choice in the sub-$200 range if you have a USB-C laptop.
Fully meets expectations — detailed Surface Pro 8 test results
Charges my Surface Pro 8 at 55W via either Thunderbolt port — ~80% conversion efficiency, so it can fully charge the 50Wh Surface battery with capacity left for phones. The display is fantastic: tells you exactly what's going on with inputs and outputs. The supplied 140W cable is 60cm (about two feet), not 6cm as some claim. DJI battery users: use the USB-A port with the supplied DJI cable for reliable 18W charging.
Perfect for EDC, grilling deck, and power outage backup
I use it in my EDC bag for phone, tablet, and Kindle — and outside on the grilling deck for fan controllers and wireless thermometers. The LCD screen is the geek factor I love: it shows remaining capacity 0-100%, power being pulled from each port, estimated runtime at current draw, and total battery cycles. The only missing piece is a wall adapter — it comes with a USB-C to USB-C cable but no wall plug. Excellent battery to have for power outages too.
Fast charging, great charge details — yes it's bulky
First impression: bulky. Won't fit in a pocket like smaller banks. But if you're using it on a table or in a bag — which is the right use case for this capacity — it's excellent. The charging info display is genuinely useful: shows watts in real time, time remaining to 100%, and temperature. I tested the quoted single vs. dual-port numbers and they were accurate. With a CalDigit Thunderbolt 4 cable (100W rated) I saw close to 100W on my iPhone 12 Pro Max solo.
Fast charging degraded after 16 months — support replaced it
Bought in December 2024. By April 2026 the fast charge rate had dropped from 27W to ~7W. I contacted support — they followed up promptly, issued a replacement, and the replacement has been working properly since. The customer service was extraordinary. I appreciate how they handled the situation and plan to continue using this product line based on that experience alone.
Port reliability issues — refund issued by support
Ports were unreliable — had to switch between them to find one that would charge. When it did charge, it often stopped after a few minutes. The only upside was fast self-recharge with my 140W charging block. The reliability made day-to-day use frustrating. Update: support provided a full refund without difficulty. Customer service is genuinely great — the product experience just didn't match expectations for the price.
Every technical question answered.
Can it actually charge a MacBook Pro at full speed?
Is it allowed on airplanes?
Why does the LCD show display metrics that aren't zero when brand new?
Why can't I reach 140W output?
Why does the USB-A port show 0.1W with nothing connected?
Does it come with a wall charger?
Can I charge the bank and a device simultaneously (pass-through)?
What's covered by the 24-month warranty?
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