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The Galaxy Note 9 fast-charges over both Samsung’s Adaptive Fast Charging (AFC/Quick Charge 2.0-compatible) and USB Power Delivery, so almost any modern PD or QC power bank will top it up quickly — you don’t need a Samsung-branded unit, just one that outputs at least 15W over USB-C or USB-A QC. Below are real, currently-sold power banks that cover that spec, from Samsung’s own official pack to budget PD options.
| # | Product | Price | Where to buy |
|---|---|---|---|
| 1 | Samsung 25W Battery Pack (10,000mAh, EB-U3300) | $30-$45 | Amazon · eBay |
| 2 | Samsung Wireless Battery Pack 10,000mAh (EB-U3300XJEGWW, 25W) | $35-$50 | Amazon · eBay |
| 3 | Anker Nano Power Bank (10K, 45W, A1638) | $40-$55 | Amazon |
| 4 | INIU Portable Charger (45W PD, ~10,000mAh) | $25-$40 | Amazon · eBay |
| 5 | Baseus Portable Charger (10,000mAh, 22.5W PD3.0/QC3.0, built-in cable) | $20-$30 | Amazon · eBay |
| 6 | CUKTECH 20 Power Bank (25,000mAh, 210W max) | $70-$100 | Amazon |
| 7 | RAVPower 20,000mAh Power Bank (USB-C PD) | $35-$50 | Amazon · eBay |
| 8 | Mophie Powerstation Fast 20,000mAh (45W, 3x USB-C PD) | $45-$70 | Amazon · eBay |
| 9 | Zendure Power Bank (QC 3.0 certified) | $30-$60 | Amazon · eBay |
The picks, in detail
Samsung 25W Battery Pack (10,000mAh, EB-U3300)
Samsung’s own accessory, built around the Super Fast Charging standard the Note 9’s successors use — it also runs Adaptive Fast Charging on the Note 9 itself over its USB-C port.
- 10,000mAh capacity
- 25W USB-C output
- Can charge two devices via USB-C + a second port on some revisions
- Compact, pocketable form factor
- Guaranteed Samsung charging-protocol compatibility
- Small and light for the capacity
- USB-C in and out
- No wireless charging
- Pricier than third-party packs of similar capacity
Samsung Wireless Battery Pack 10,000mAh (EB-U3300XJEGWW, 25W)
Same Samsung pack line but with a Qi wireless charging pad on top, useful if you also own a Galaxy Watch or Buds case alongside the Note 9.
- 10,000mAh
- 25W wired USB-C + Qi wireless pad
- Dual-device charging (wired + wireless simultaneously)
- Wireless top-up for watches/earbuds while wired-charging the phone
- Official Samsung fast-charge support
- Wireless output is slower than wired
- Adds bulk versus the wired-only version
Anker Nano Power Bank (10K, 45W, A1638)
A 10,000mAh pack with a built-in retractable USB-C cable, so there’s no separate cable to lose — 45W is well above what the Note 9 can draw, giving headroom and faster charging of newer devices too.
- 10,000mAh
- 45W USB-C PD output
- Built-in retractable USB-C cable
- USB-C input for recharging the bank itself
- No cable needed
- Compact for the power delivered
- Anker’s standard 18-month warranty
- Single retractable cable limits simultaneous charging of a second device
INIU Portable Charger (45W PD, ~10,000mAh)
A budget-tier PD 3.0 pack that still hits 45W, enough to fast-charge the Note 9 well past its own rated speed with margin to spare.
- ~10,000mAh capacity
- 45W USB-C Power Delivery
- LED display on some models
- Compact triple-layer casing
- Strong price-to-output ratio
- Reliable PD/QC compatibility
- Build quality is plastic-forward versus premium brands
Baseus Portable Charger (10,000mAh, 22.5W PD3.0/QC3.0, built-in cable)
Includes a built-in braided USB-C cable and hits 22.5W — comfortably above the Note 9’s charging ceiling, with QC3.0 fallback for USB-A devices.
- 10,000mAh
- 22.5W PD3.0 + QC3.0
- Built-in braided USB-C cable
- Compact travel size
- No cable to carry separately
- Dual fast-charge protocol support
- Single built-in cable, no USB-A port on some variants
CUKTECH 20 Power Bank (25,000mAh, 210W max)
A high-capacity pack for anyone who wants several full Note 9 charges before recharging the bank itself — far more output than the phone needs, so it also covers laptops.
- 25,000mAh
- 210W total max output, up to 140W single-port
- Two USB-C ports + one USB-A
- LED charge display
- Multiple full phone charges per bank charge
- Can also fast-charge a laptop
- Heavier and bulkier than a phone-focused pack
- Overkill capacity for single-phone use
RAVPower 20,000mAh Power Bank (USB-C PD)
A mid-capacity RAVPower pack with USB-C PD output, a long-running line with wide QC/PD device compatibility including the Note 9’s charging standards.
- 20,000mAh
- USB-C PD output
- USB-A QC port for a second device
- LED capacity indicator
- Good capacity-to-price ratio
- Charges two devices at once
- Larger and heavier than 10,000mAh packs
Mophie Powerstation Fast 20,000mAh (45W, 3x USB-C PD)
Three USB-C PD ports let it fast-charge the Note 9 plus two other devices simultaneously — a good pick for travel where multiple gadgets need topping up.
- 20,000mAh
- 45W max PD output
- 3x USB-C PD ports
- USB-A port also included on most versions
- Charges multiple devices at full speed at once
- Reputable mophie build quality
- Bigger and heavier than single-port packs
Zendure Power Bank (QC 3.0 certified)
Zendure’s packs carry Qualcomm QC 3.0 certification, which is directly compatible with the Note 9’s Adaptive Fast Charging over USB-A.
- QC 3.0 certified output
- Multiple capacity options (10,000-26,800mAh)
- Durable aluminum-alloy shells on several models
- Confirmed QC3.0/AFC compatibility with Samsung phones
- Rugged build on the higher-end models
- Premium-metal models cost more than plastic competitors
Buying tips
- Match the output, not the brand: any pack rated 15W+ over USB-C PD or Samsung AFC/QC2.0 will fast-charge the Note 9 — Samsung-branded packs add nothing electrically beyond convenience.
- For daily one-charge use 10,000mAh is enough; go 20,000mAh+ only if you need multiple full charges before recharging the bank.
- Check for simultaneous wired+wireless charging only if you also own Qi accessories — it doesn’t speed up the phone itself.
As an Amazon Associate and eBay Partner, toptenpick.com earns from qualifying purchases. Prices and availability are subject to change.