# Which power bank provides the fastest charging speed? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

Which power bank provides the fastest charging speed?

## Products

### Anker Anker Prime 20,000mAh Power Bank (200W)
```yaml
product: anker-anker-prime-20-000mah-power-bank-200w
brand: Anker
price_gbp: 104.54
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
size: 126.9 x 54.6 x 49.65mm
weight: 545g
capacity: 20000mAh
charging_time: About 1 hour 15 minutes
input_voltage: 5V / 9V / 12V / 15V / 20V
output_current: See per-protocol values (varies by voltage); 5V⎓3A / 9V⎓3A / 12V⎓3A / 15V⎓3A / 20V⎓5A
output_voltage: 5V / 9V / 10V / 12V / 15V / 20V
number_of_ports: 2 USB-C, 1 USB-A
```

- **Price:** £104.54 [^1]
- **Summary:** High‑power 20,000mAh USB power bank delivering up to 200W total (up to 100-140W per USB-C depending on configuration), fast 100W recharging, and a three‑port layout with a digital display. Suited for users who need laptop‑level USB‑C charging on the go and fast top‑up speed without carrying a full-sized battery pack.
- **Additional Sources:** [^2], [^3]

### UGREEN UGREEN 145W 25,000mAh Power Bank
```yaml
product: ugreen-ugreen-145w-25-000mah-power-bank
brand: UGREEN
price_gbp: 82.14
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
size: 160*80*26mm
weight: 513g
capacity: 25000mAh
charging_time: 2 hours (with 65W PD charger)
input_voltage: 5V-20V
output_current: up to 5A
output_voltage: 5V-28V
number_of_ports: 3
```

- **Price:** £82.14 [^4]
- **Summary:** High-capacity 25,000mAh power bank with up to 145W combined output across two USB-C and one USB-A port. Suited for charging laptops, tablets, phones, and multiple devices simultaneously for travelers and power users.

### Anker Anker Nano Power Bank 10,000mAh 45W Built-In Cable
```yaml
product: anker-anker-nano-power-bank-10-000mah-45w-built-in-cable
brand: Anker
price_gbp: 44.8
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
size: 3.21 × 1.99 × 1.42 in
weight: 0.51 lb
capacity: 10000mAh
charging_time: About 2 hours (with 30W charger)
input_voltage: 5V / 9V / 12V / 15V
output_current: 3A / 3A / 2.25A / 3A / 2.25A
output_voltage: 5V / 9V / 10V / 15V / 20V
number_of_ports: 3
```

- **Price:** £44.8 [^5]
- **Summary:** Compact 10,000mAh power bank with a built-in retractable USB-C cable, 45W max USB-C output, a USB-A port, and a smart display. Suits travelers and commuters who want fast charging and a cable built into a pocketable pack.
- **Additional Sources:** [^6], [^7]

### Anker Anker 737 PowerCore 24K 140W (PowerCore 24K)
```yaml
product: anker-anker-737-powercore-24k-140w-powercore-24k
brand: Anker
price_gbp: 82.14
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
size: 6.13 x 2.15 x 1.95 in
weight: 22.22 oz
capacity: 24000mAh
charging_time: 1 hour (with 140W PD wall charger)
input_voltage: 5V / 9V / 15V / 20V / 28V
output_current: 3A / 5A (varies by voltage)
output_voltage: 5V / 9V / 15V / 20V / 28V
number_of_ports: 3
```

- **Price:** £82.14 [^8]
- **Summary:** High-capacity 24,000mAh power bank with up to 140W USB-C two-way fast charging, two USB-C ports and one USB-A port, and an OLED status display. Suited for users who need laptop-class charging on the go and multi-device charging while traveling.
- **Additional Sources:** [^9]

### Belkin Belkin 25,000mAh 140W USB-C Power Bank
```yaml
product: belkin-belkin-25-000mah-140w-usb-c-power-bank
brand: Belkin
price_gbp: 63.47
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
size: 6.5in x 3.5in x 1in
weight: null
capacity: 25,000 mAh
charging_time: null
input_voltage: null
output_current: null
output_voltage: null
number_of_ports: 3
```

- **Price:** £63.47 [^10]
- **Summary:** High-capacity 25,000mAh laptop power bank with up to 140W single‑port USB‑C Power Delivery and an integrated 13.8in USB‑C cable. Suited for charging laptops, tablets, and phones on the go and for users who need high-watt fast charging and TSA‑compliant capacity for travel.
- **Additional Sources:** [^11]

### BioLite BioLite Charge 100 Max 25,000mAh 100W
```yaml
product: biolite-biolite-charge-100-max-25-000mah-100w
brand: BioLite
price_gbp: 134.38
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
size: 5.4 x 4.4 x 1.4 in
weight: 580 g
capacity: 25,000 mAh
charging_time: 1.5 hours
input_voltage: 5V, 9V, 12V, 15V, 20V (65W USB-C PD input)
output_current: 5A (at 20V), 3A (at 5V/9V/12V/15V)
output_voltage: 5V, 9V, 12V, 15V, 20V
number_of_ports: 2x USB-C PD (100W combined), 1x USB-C (15W), 1x USB-A (15W), 1x wireless pad (15W)
```

- **Price:** £134.38 [^12]
- **Summary:** The Charge 100 Max is a 25,000 mAh, 100W fast portable charger with two high-power USB-C PD ports, additional USB-C and USB-A outputs, and a 15W magnetic wireless pad. It recharges in about 1.5 hours with a 65W USB-C charger and suits travelers, remote workers, and users who need fast multi-device charging in a compact, airline-compliant package.
- **Additional Sources:** [^13], [^14]

### UGREEN UGREEN Nexode 25,000mAh 165W Power Bank
```yaml
product: ugreen-ugreen-nexode-25-000mah-165w-power-bank
brand: UGREEN
price_gbp: 74.67
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
size: 16.9L x 8.1W x 2.7Th centimetres
weight: 550 Grams
capacity: 25000 mAh
charging_time: About 2 hours
input_voltage: null
output_current: null
output_voltage: 3.7 V
number_of_ports: 4
```

- **Price:** £74.67 [^15]
- **Summary:** High-capacity 25,000mAh power bank with up to 165W total output, two built-in USB-C cables plus USB-C and USB-A ports, and a digital display. Suited for travelers and professionals who need fast laptop and multi-device charging on the go.
- **Additional Sources:** [^16], [^17]

---
## References & Sources
[^1]: Best Buy, accessed 2026-06-08. https://www.bestbuy.com/product/anker-power-bank-20000mah-200w-3-port-black/JJ8586VYPW
[^2]: CDW, accessed 2026-06-08. https://www.cdw.com/product/anker-prime-power-bank-200-watt-20000-mah/7770247
[^3]: Anker Support/Product Page, accessed 2026-06-08. https://support.anker.com/s/product/a085g00000BdlzHAAR/anker-prime-20000mah-power-bank-200w
[^4]: UGREEN Official Store, accessed 2026-06-08. https://us.ugreen.com/products/ugreen-145w-power-bank-for-laptop
[^5]: Anker, accessed 2026-06-08. https://www.anker.com/products/a1638-10k-45w-power-bank
[^6]: Best Buy, accessed 2026-06-08. https://www.bestbuy.com/product/anker-nano-portable-charger-white/JJ858RXTG5
[^7]: Anker Service (product description), accessed 2026-06-08. https://service.anker.com/product-description/a08J1000000YaQ9IAK
[^8]: Anker (official store), accessed 2026-06-08. https://www.anker.com/products/a1289
[^9]: StorageReview (linking retailers), accessed 2026-06-08. https://www.storagereview.com/review/anker-737-power-bank-review
[^10]: Belkin, accessed 2026-06-08. https://www.belkin.com/p/laptop-power-bank-25k/BBA019ttBK.html
[^11]: Belkin Support (FAQ), accessed 2026-06-08. https://www.belkin.com/support-article/?articleNum=337736
[^12]: BioLite Store, accessed 2026-06-08. https://www.bioliteenergy.com/products/charge-100-max
[^13]: Popular Mechanics (buy link), accessed 2026-06-08. https://www.popularmechanics.com/technology/gear/a70821273/biolite-charge-100-max-battery-pack-review-2026/
[^14]: GearJunkie (REI link reference), accessed 2026-06-08. https://gearjunkie.com/technology/portable-power/biolite-charge-100-max-power-bank-review
[^15]: UGREEN (US), accessed 2026-06-08. https://us.ugreen.com/products/nexode-power-bank-25000mah-165w-built-in-cables
[^16]: UGREEN (EU), accessed 2026-06-08. https://eu.ugreen.com/products/nexode-power-bank-25000mah-165w-4-ports-built-in-cables
[^17]: Best Buy, accessed 2026-06-08. https://www.bestbuy.com/product/ugreen-nexode-200w-25000mah-power-bank-with-smart-tft-display-pd-3-1-fast-portable-charger-for-laptops-tablets-cell-phones-black/J3R84YGXYV/sku/6644435