# What is the quietest portable charger on the market? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

What is the quietest portable charger on the market?

## Products

### Zendure SuperTank Pro PD 100W
```yaml
product: zendure-supertank-pro-pd-100w
brand: Zendure
price_gbp: 125.43
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
size: 4.9 in x 2.9 in x 1.8 in
capacity: 26,800mAh / 96.48Wh
fast_charging: 100W USB-C Power Delivery (two ports) and PPS support (up to 55W on one port); total output 138W
output_current: up to 5A (at 20V) for high-power ports; other ports up to 3A or 2A as specified
output_voltage: 5V, 9V, 12V, 15V, 20V
number_of_ports: 4 USB-C ports
```

- **Price:** £125.43 [^1]
- **Summary:** The Zendure SuperTank Pro is a 26,800mAh portable power bank with an aluminum shell, OLED status display, four USB-C ports and firmware upgradability. It supports up to 100W USB-C PD on two ports, PPS on one port, and a combined maximum output of 138W, making it suitable for charging laptops and multiple devices simultaneously.
- **Ideal For:** Ideal for a user seeking the quietest portable charger because it uses solid-state USB-C PD with no moving parts and an aluminum body that aids passive heat dissipation while delivering up to 100W PD (two ports) and 138W total without fans.
- **Additional Sources:** [^2]

### Jackery Explorer 300 Portable Power Station
```yaml
product: jackery-explorer-300-portable-power-station
brand: Jackery
price_gbp: 205.86
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
size: 9.1 x 5.2 x 7.8 in
capacity: 293Wh
fast_charging: Yes (90W AC + 60W USB-C PD combined)
output_current: 2.7A
output_voltage: 110VAC
number_of_ports: 6
```

- **Price:** £205.86 [^3]
- **Summary:** The Jackery Explorer 300 is a compact 293Wh portable power station with a 300W pure sine wave inverter (500W surge), multiple USB outputs including a 60W USB-C PD, and a 36.4dB quiet operating level. It charges rapidly via a 90W AC wall charger and 60W USB-C PD in combination, supports solar input, and is lightweight for camping and emergency backup.
- **Ideal For:** It suits the question about the quietest portable charger because it lists a 36.4dB noise rating and uses a pure sine wave inverter with low-noise design. 
- **Additional Sources:** [^4], [^5]

### Nitecore NB10000
```yaml
product: nitecore-nb10000
brand: Nitecore
price_gbp: 51.61
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
size: 116mm x 46.8mm x 14.5mm
capacity: 10,000mAh 3.9V 39Wh
fast_charging: 22.5W
output_current: 3A / 2.22A / 1.87A
output_voltage: 5V / 9V / 12V
number_of_ports: 2
```

- **Price:** £51.61 [^6]
- **Summary:** The Nitecore NB10000 Gen4 is a lightweight 10,000mAh power bank with dual USB-C ports, 22.5W fast charging, pass-through charging, and IPX7 water resistance. Its compact carbon-fiber design suits hikers, trail runners, travelers, and anyone who needs portable power with minimal weight.
- **Ideal For:** It suits the quietest portable charger question because its compact 143g design has no fan or moving parts, while its 10,000mAh capacity and up to 22.5W USB-C charging provide quiet, efficient power for phones and small electronics.
- **Additional Sources:** [^7], [^8]

### INIU P50
```yaml
product: iniu-p50
brand: INIU
price_gbp: 17.16
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
size: 8.3 x 5.2 x 2.6 cm
capacity: 10000mAh
fast_charging: 45W, PD 3.0, PD 2.0, QC 3.0, QC 2.0, PPS, AFC
output_current: 3A maximum
output_voltage: 5V, 9V, 12V, 15V
number_of_ports: 3
```

- **Price:** £17.16 [^9]
- **Summary:** The INIU P50 is a compact 10000mAh power bank with 45W fast charging, three ports, and a built-in USB-C cable. Its small size and 160g weight make it well suited to commuters, travelers, and anyone charging phones or small tablets on the go.
- **Ideal For:** The INIU P50 suits someone seeking a quiet portable charger because its compact 160g design has no fan or moving parts, while its 10000mAh capacity and 45W output provide quiet, cable-based charging for phones and small tablets.
- **Additional Sources:** [^9]

### EcoFlow RIVER 2
```yaml
product: ecoflow-river-2
brand: EcoFlow
price_gbp: 154.94
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
size: 9.6 x 8.5 x 5.7 in
capacity: 256Wh
fast_charging: 0-100% in 60 minutes
number_of_ports: 5
```

- **Price:** £154.94 [^10]
- **Summary:** The EcoFlow RIVER 2 is a compact portable power station with a 256Wh LFP battery, 300W output, five ports, and rapid one-hour AC charging. It suits campers, travelers, students, and anyone needing portable power for phones, laptops, lights, and other small electronics.
- **Ideal For:** The EcoFlow RIVER 2 suits someone seeking a quiet portable charger because its compact 7.7 lb design provides 256Wh of capacity and 300W output without requiring a fuel-powered generator, while its one-hour recharge keeps it ready for use.
- **Additional Sources:** [^11]

### EcoFlow DELTA 2
```yaml
product: ecoflow-delta-2
brand: EcoFlow
price_gbp: 316.54
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
size: 15.7 x 8.3 x 11 in
capacity: 1024 Wh
fast_charging: 0-80% in 50 minutes; full charge in 80 minutes with 1200W X-Stream AC charging
output_current: 10A car output; 3A DC5521; 5A USB-C
output_voltage: 120V AC; 12.6V DC; 5V, 9V, 12V, 15V, 20V USB-C
number_of_ports: 15
```

- **Price:** £316.54 [^12]
- **Summary:** The EcoFlow DELTA 2 is a 1024 Wh portable power station with 1800W AC output, six AC outlets, USB ports, and expandable battery capacity. Its LiFePO4 battery and rapid 0-80% charging make it suitable for camping, travel, emergency backup, and home power support.
- **Ideal For:** It suits people seeking a quiet portable charger because its battery-powered design produces no fuel-engine noise while providing 1024 Wh capacity, 1800W AC output, and fast 0-80% charging in about 50 minutes.

---
## References & Sources
[^1]: StorageReview (Amazon listing referenced), accessed 2026-09-13. https://www.storagereview.com/review/zendure-supertank-pro-review
[^2]: Zendure official store, accessed 2026-09-13. https://powerbank.zendure.com/products/supertank-pro
[^3]: Jackery Official Store, accessed 2026-09-13. https://www.jackery.com/products/explorer-300-portable-power-station
[^4]: Sail Far Live Free (product listing/review), accessed 2026-09-13. http://www.sailfarlivefree.com/2022/11/power-on-go-jackery-explorer-300.html
[^5]: Shutter Muse (retailer review linking to purchase), accessed 2026-09-13. https://shuttermuse.com/jackery-explorer-300-review/
[^6]: Garage Grown Gear, accessed 2026-09-13. https://www.garagegrowngear.com/collections/nitecore
[^7]: Zpacks, accessed 2026-09-13. https://zpacks.com/products/nitecore-nb10000-gen-4
[^8]: Battery Junction, accessed 2026-09-13. https://www.batteryjunction.com/products/nitecore-nb10000-gen4
[^9]: INIU, accessed 2026-09-13. https://www.packhacker.com/travel-gear/iniu/carry-p50-e1-power-bank-2/
[^10]: Best Buy, accessed 2026-09-13. https://www.bestbuy.com/product/ecoflow-256wh-compact-energy-solution-portable-power-station-river-2-256-wh-capacity-black/J36C7VKLVQ
[^11]: EcoFlow Australia, accessed 2026-09-13. https://www.ecoflow.com/au/river-2-portable-power-station
[^12]: Amazon, accessed 2026-09-13. https://www.amazon.com/s?k=EcoFlow+DELTA+2+1024Wh+Portable+Power+Station