# What is the most powerful external battery available? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

What is the most powerful external battery available?

## Products

### Pecron F3000LFP Portable Power Station
```yaml
product: pecron-f3000lfp-portable-power-station
brand: Pecron
price_gbp: 666.67
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
weight: 28.7kg / 63.3lb
capacity: 3072Wh
charging_time: 1.5 hours with AC and solar; 2 hours with AC; 2.3 hours with solar
output_current: 30A AC; 10A DC at 12V
output_voltage: 100V-120V pure sine wave
number_of_ports: 13
input_charging_method: AC, solar, and car charging
```

- **Price:** £666.67 [^1]
- **Summary:** The Pecron F3000LFP is a high-capacity portable power station with a 3072Wh LiFePO4 battery and a 3600W pure sine wave inverter. It supports fast AC and solar charging, app control, UPS functionality, and expandable capacity, making it suitable for home backup, RVs, camping, job sites, and emergencies.
- **Ideal For:** It suits anyone seeking the most powerful external battery because it combines 3072Wh of capacity, 3600W continuous output, 4500W surge power, 13 output ports, and expansion capability up to 10752Wh.
- **Additional Sources:** [^2], [^3]

### EcoFlow DELTA Pro 3
```yaml
product: ecoflow-delta-pro-3
brand: EcoFlow
price_gbp: 2075.65
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
weight: 113lb
capacity: 4096Wh
output_current: 16.7A
output_voltage: 120V or 240V
input_charging_method: AC, solar, EV, alternator, generator, vehicle DC
```

- **Price:** £2075.65 [^4]
- **Summary:** The EcoFlow DELTA Pro 3 is a 4096Wh portable power station with 4000W continuous output and split-phase 120V or 240V power. It suits home backup, RVs, camping, and off-grid use, with expandable capacity and multiple charging options.
- **Ideal For:** It suits anyone seeking the most powerful external battery because it delivers 4000W of continuous output, supports 120V or 240V split-phase power, accepts up to 2600W of solar input, and can expand to 12kWh per unit.

### Pecron E3600LFP Power Station 240V Bundle
```yaml
product: pecron-e3600lfp-power-station-240v-bundle
brand: Pecron
price_gbp: 1666.3
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
weight: 72kg
capacity: 6144Wh
charging_time: 1.3 hours
output_current: 30A
output_voltage: 240V
number_of_ports: 32
input_charging_method: AC, solar, car
```

- **Price:** £1666.3 [^5]
- **Summary:** This bundle combines two E3600LFP power stations with a 240V connect box, providing 6144Wh of total LiFePO4 battery capacity and 7200W of combined output. It supports fast AC charging, solar charging, Wi-Fi control, UPS functionality, and expandable battery capacity, making it suitable for home backup, off-grid use, RVs, and demanding outdoor work.
- **Ideal For:** It suits someone seeking the most powerful external battery because it delivers 7200W of combined continuous output at 240V, 6144Wh of storage, up to 4800W of solar input, and expandable capacity.

### EcoFlow STREAM 5000
```yaml
product: ecoflow-stream-5000
brand: EcoFlow
price_gbp: 1185.77
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
weight: 45.4 kg
capacity: 5024 Wh
input_charging_method: AC charging up to 3000 W and solar charging up to 5000 W
```

- **Price:** £1185.77 [^6]
- **Summary:** The EcoFlow STREAM 5000 is a 5024 Wh home energy storage battery with four MPPT solar inputs, up to 5000 W of solar input, and up to 3000 W of AC output. It suits homeowners who want solar energy storage, backup power for high-demand appliances, and the option to expand the system up to 90 kWh.
- **Ideal For:** It suits someone seeking the most powerful external battery because it combines 5024 Wh capacity, up to 3000 W output, 5000 W solar input through four MPPTs, and expansion up to 90 kWh.
- **Additional Sources:** [^7]

---
## References & Sources
[^1]: Pecron, accessed 2026-09-03. https://www.pecron.com/products/pecron-f3000lfp-portable-power-station-3600w-3072wh
[^2]: Off-Grid Source, accessed 2026-09-03. https://offgridsource.com/products/pecron-f3000lfp-portable-power-station-3600w-3072wh-pre-order-eta-end-of-june
[^3]: The Battery Shop, accessed 2026-09-03. https://thebatteryshop.eu/Pecron-F3000LFP-Portable-Power-Station
[^4]: EcoFlow, accessed 2026-09-03. https://us.ecoflow.com/products/delta-pro-3-portable-power-station
[^5]: Pecron, accessed 2026-09-03. https://www.pecron.com/products/pecron-e3600lfp-portable-power-station-3600w-3072wh
[^6]: EcoFlow Europe, accessed 2026-09-03. https://eu.ecoflow.com/products/stream-series-solar-battery
[^7]: Solar Power Supply, accessed 2026-09-03. https://solarpowersupply.eu/plug-in-home-batteries/ecoflow-stream-5000-25-kw-5-kwh