Belkin
Belkin BoostCharge Pro 3-Port Laptop Power Bank 20K
$92.43Cheaper
Released 2023
Best Power Banks · head-to-head
A sourced, side-by-side comparison. Belkin BoostCharge Pro 3-Port Laptop Power Bank 20K is cheaper at $92.43. Every spec and price links to its source.
Belkin
$92.43Cheaper
Released 2023
Shargeek
$169
Released 2023
On the specs we track, they're closely matched. The Belkin BoostCharge Pro 3-Port Laptop Power Bank 20K is the cheaper at $92.43.
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✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | | |
|---|---|---|
| US price | $92.43 | $169 |
| Brand | Belkin | Shargeek |
| Released | 2023 | 2023 |
| Capacity (mAh) | 20000 | 20000 |
| Max output (W) | 65 | 130 |
| Ports | 2x USB-C, 1x USB-A | 1x USB-C (100W), 1x USB-A (30W) |
| Built in cable | No | No |
| Display | — | IPS |
| Weight (oz) | — | — |
| Pass through | Yes | Yes |
| Release | 2023 | 2023 |
Sources — Belkin BoostCharge Pro 3-Port Laptop Power Bank 20K: newegg.com (verified 2026-06-15). Shargeek Storm 2 Slim Power Bank 20,000mAh 130W: amazon.com (verified 2026-06-15).
Where the two actually differ on the specs we track (2 of 7). Matching specs are omitted.
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
One whitelisted tester covers this exact model: Wirecutter, in its USB-C laptop power bank guide (updated 13 April 2026). The Belkin appears only in the guide's competition list, which Wirecutter prefaces by saying it comprises models it has tested. The published verdict is two lines long: lighter and typically cheaper than the Anker Prime A110A top pick, but with a less informative screen, less capacity and less power. Nothing was published beyond that comparison. (1 sourced review, 1 lab-tested.)
Praised: Lighter than Wirecutter's top-pick laptop power bank; Typically cheaper than the category top pick.
Flagged: Less capacity and less power than the top pick; Less informative screen than the top pick.
Only one whitelisted tester (Notebookcheck) hands-on-reviewed this exact model; mainstream outlets like PCMag, Tom's Guide and Wirecutter never covered it. Notebookcheck found the Slim charged a 100W ultrabook as expected and praised the see-through design, but flagged early milky discoloration of the clear shell and sub-rated phone charging (~35W to an S22 Ultra). (1 sourced review, 1 lab-tested.)
Praised: Charges a 100W ultrabook as expected, with charging curves comparable to similar-spec rivals; Distinctive see-through design plus IPS info screen; more travel-friendly than the metallic Chargeasap Flash Pro; USB-A port reliably handles anything thrown at it.
Flagged: Clear polycarbonate shell developed faint milky discoloration streaks early in testing; Charged a Galaxy S22 Ultra only ~35W (below its 45W rate) and cannot fully fill a laptop to 100%; On-screen temperature and charging readouts did not match FLIR imaging or a USB multimeter.