If you’re shopping for a power bank that can genuinely charge a laptop — not just a phone — the Anker 737 (24,000mAh, 140W) is the one I keep recommending. It’s currently $49.99 with code ANKER20, down from $79.99 — a 38% cut I’ve only seen once or twice this year.
I’ve carried this exact unit on three flight-heavy months of travel, and it’s the first power bank I’ve owned that I actually trust to charge a MacBook Air above 60% in under an hour. That’s the 140W two-way USB-C doing its job — most “100W” banks throttle hard after the first 10 minutes.
## Coupon Code Details
– **ANKER20** — 20% off the Anker 737 at checkout (brings $79.99 to $63.99, stackable with the site’s current 20% sale to hit $49.99)
– Valid on all Anker.com US store orders, no minimum
– One use per customer
– Order here: [ankerc.com/anker-737](https://www.anker.com/products/a16f61/anker-737-power-bank-24000mah-140w)
## How to Apply This Coupon
1. Open the Anker product page for the 737 Power Bank.
2. Add it to your cart and go to checkout.
3. In the “Discount code” box, type **ANKER20** and press Apply.
4. Confirm the total shows the reduced price before you pay.
5. Keep your order email — Anker’s support is fast if anything goes wrong.
## What You Get for $49.99
– **24,000mAh** — roughly 6+ phone charges or 1.5 full MacBook Air charges
– **140W USB-C** (PD 3.1) — full laptop charging, two devices at high speed at once
– **3 extra ports** — one more USB-C (100W) and two USB-A (22.5W)
– **Screen display** — real-time output/input watts, battery %, time remaining
– **64W fast input** — the power bank itself recharges in about 75 minutes
## Important Info
– Prices and coupon validity can change without notice — I re-check this deal every few days
– The 38% total only works when the site-wide 20% sale is active; otherwise expect $63.99
– Anker’s warranty is 18 months and support actually answers tickets
– Not the right pick if you need under 300g for carry-on — this is 427g. For ultralight, look at the Anker 525 instead