# Which power bank offers the highest capacity for my needs? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

Which power bank offers the highest capacity for my needs?

## Products

### Anker Anker Prime 27650mAh 250W Power Bank
```yaml
product: anker-anker-prime-27650mah-250w-power-bank
brand: Anker
price_gbp: 110.93
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
size: 57 x 49.7 x 161.7 mm
weight: 665g
capacity: 27,650mAh
charging_time: 43mins (140W)
input_voltage: 5V/9V/12V/15V/20V/28V
output_current: 5A
output_voltage: 3.3V-28V
number_of_ports: 3
```

- **Price:** £110.93 [^1]
- **Summary:** Compact high-capacity power bank with a 27,650mAh Li‑Po battery, three ports (two USB‑C and one USB‑A), up to 250W combined output and a bright LCD for real‑time stats. Suited for power users who need fast charging for laptops, phones and multiple devices on the go.
- **Additional Sources:** [^2], [^3]

### UGREEN UGREEN Nexode 25000mAh Power Bank
```yaml
product: ugreen-ugreen-nexode-25000mah-power-bank
brand: UGREEN
price_gbp: 59.54
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
size: 155 x 54 x 50 mm
weight: 609 g
capacity: 25000mAh
charging_time: 2 hours
input_voltage: 5V-20V
output_current: Up to 5A
output_voltage: 5V-28V
number_of_ports: 3
```

- **Price:** £59.54 [^4]
- **Summary:** High-capacity 25000mAh power bank with up to 200W combined output, a smart TFT display, and multiple fast-charge protocols. Suited for power users and travelers who need to charge laptops and multiple devices quickly.
- **Additional Sources:** [^5]

### EcoFlow EcoFlow Delta Pro Portable Power Station
```yaml
product: ecoflow-ecoflow-delta-pro-portable-power-station
brand: EcoFlow
price_gbp: 1264.86
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
size: 25*11.2*16.4 in
weight: 99 lbs
capacity: 3600Wh
charging_time: 2.7 hours (AC to 80%)
input_voltage: AC 120V15A or 240V12.5A; Solar 11-150V; Car 12V/24V
output_current: null
output_voltage: 120/240V AC
number_of_ports: 15
```

- **Price:** £1264.86 [^6]
- **Summary:** The DELTA Pro is a high-capacity, expandable portable power station with a 3600Wh LFP battery, 3600W continuous (7200W surge) AC output, multiple fast-charge options and support for extra batteries for up to 25kWh. It suits homeowners and professionals needing reliable whole-home backup or high-power off-grid use.
- **Additional Sources:** [^7], [^8]

### INIU INIU P63-E1 25000mAh 100W Power Bank
```yaml
product: iniu-iniu-p63-e1-25000mah-100w-power-bank
brand: INIU
price_gbp: 44.66
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
size: 4.3 x 2.7 x 1.4 in
weight: 15.8 ounces
capacity: 25000 mAh
charging_time: 1.4 hours
input_voltage: null
output_current: null
output_voltage: null
number_of_ports: 3
```

- **Price:** £44.66 [^9]
- **Summary:** Compact 25,000mAh power bank with up to 100W single-port PD output and total 110W output, fast 65W input recharge and three ports (USB-C x2, USB-A x1). Suited for users needing high-capacity, laptop-capable fast charging in a pocketable package.
- **Additional Sources:** [^10], [^11]

### Energizer Energizer Ultimate Lithium 30000mAh 30W PD Power Bank
```yaml
product: energizer-energizer-ultimate-lithium-30000mah-30w-pd-power-bank
brand: Energizer
price_gbp: 22.33
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
size: 149 x 70 x 40.8mm
weight: 606.5g
capacity: 30000mAh
charging_time: 4 hours
input_voltage: 5V, 9V
output_current: up to 3A (varies by voltage/port)
output_voltage: 5V, 9V, 12V, 15V, 20V
number_of_ports: 6
```

- **Price:** £22.33 [^12]
- **Summary:** High-capacity 30000mAh power bank with up to 30W USB-C PD, multiple USB-A ports, LCD battery display and PowerSafe protections. Suited for users who need multi-device charging on the go and occasional laptop or fast-phone charging.
- **Additional Sources:** [^13], [^14]

### BioLite BioLite Charge 100 Max 25000mAh
```yaml
product: biolite-biolite-charge-100-max-25000mah
brand: BioLite
price_gbp: 111.67
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
size: 140 x 112 x 35 mm
weight: 580 g
capacity: 25,000 mAh
charging_time: 1.5 hours
input_voltage: USB-C PD 65W (input)
output_current: 3A, 5A (20V/5A)
output_voltage: 5V, 9V, 12V, 15V, 20V
number_of_ports: 2 x USB-C PD, 1 x USB-C, 1 x USB-A, 1 x wireless pad
```

- **Price:** £111.67 [^15]
- **Summary:** High-capacity 25,000 mAh portable charger with up to 100W fast USB-C output and a 15W magnetic wireless charging pad. Suited for travelers and mobile professionals who need fast laptop charging and the ability to charge multiple devices simultaneously.
- **Additional Sources:** [^16], [^17]

---
## References & Sources
[^1]: Anker, accessed 2026-06-06. https://www.anker.com/products/a1340-250w-power-bank
[^2]: Android Central (Amazon listing referenced), accessed 2026-06-06. https://www.androidcentral.com/accessories/anker-prime-27650mah-250w-power-bank-review
[^3]: I'mTech, accessed 2026-06-06. https://im.com.au/off-grid/anker-prime-27650mah-250w-power-bank-a1340-a-marathon-runner-portable-power-review/
[^4]: UGREEN Official Store, accessed 2026-06-06. https://us.ugreen.com/products/ugreen-nexode-power-bank-25000mah-200w-with-smart-digital-display
[^5]: Best Buy, accessed 2026-06-06. 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
[^6]: EcoFlow (official store), accessed 2026-06-06. https://us.ecoflow.com/products/delta-pro-portable-power-station
[^7]: Best Buy, accessed 2026-06-06. https://www.bestbuy.com/product/ecoflow-delta-pro-3600wh-portable-home-battery-3600-wh-capacity-black/J36C7VW54W
[^8]: The Home Depot, accessed 2026-06-06. https://www.homedepot.com/p/EcoFlow-Battery-Generator-Delta-Pro-Ultra-6144Wh-Solar-Generator-7200W-Output-LFP-Power-Station-Home-Backup-Push-Button-EFDPUPCS-BP/328514398
[^9]: Best Buy, accessed 2026-06-06. https://www.bestbuy.com/product/iniu-100w-25000mah-power-bank-ultra-compact-fast-charging-portable-charger-with-usb-c-cable-for-laptops-tablets-phones-black/CZTZXS32TY/sku/10191465
[^10]: Manuals+ (product manual), accessed 2026-06-06. https://manuals.plus/asin/B0DBHC9F8B
[^11]: Camelcamelcamel (Amazon price tracker), accessed 2026-06-06. https://camelcamelcamel.com/product/B0DBHC9F8B
[^12]: Best Buy, accessed 2026-06-06. https://www.bestbuy.com/product/energizer-ultimate-lithium-30000-mah-30w-power-delivery-3-port-usb-c-universal-portable-battery-charger-power-bank-w-lcd-display-black/J36C4YXKZ5
[^13]: Energizer Power Packs (official), accessed 2026-06-06. https://www.energizerpowerpacks.com/index.php?category=P00001&class=P00001&model=UE30063PQ&routing=product-detail
[^14]: LeaseVille, accessed 2026-06-06. https://www.leaseville.com/energizer-ultimate-lithium-30-000-mah-30w-power-delivery-3-port-usb-c-universal-portable-battery-charger-power-bank-w-lcd-display-black.html
[^15]: BioLite Store, accessed 2026-06-06. https://www.bioliteenergy.com/products/charge-100-max
[^16]: Popular Mechanics (affiliate listing), accessed 2026-06-06. https://www.popularmechanics.com/technology/gear/a70821273/biolite-charge-100-max-battery-pack-review-2026/
[^17]: GearJunkie (retailer link), accessed 2026-06-06. https://gearjunkie.com/technology/portable-power/biolite-charge-100-max-power-bank-review