Menu
Source-linked model
Energizer PPS300W2 Runtime Calculator
Use this source-linked record to estimate runtime from tracked capacity, output, charging, and weight fields. Unknown specs stay unknown until an official or manufacturer-grade source confirms them.

| Battery capacity | 293.76 Wh |
|---|---|
| Battery chemistry | Lithium-ion |
| AC output | 300 W |
| Surge output | 600 W |
| DC output | 120 W |
| USB-C output | 60 W |
| Solar input | 60 W |
| Weight | 3.55 kg |
| Confidence | Verified |
| Lifecycle status | Unknown |
| Source region | global/general |
| Last verified | 2026-08-08 |
Runtime Starting Points
These are formula estimates using the tracked capacity, a 10% reserve, and each scenario's default wattage and duty cycle. They are planning starters, not measured runtimes.
| Scenario | Default load | Estimate | Scenario confidence | Station page |
|---|---|---|---|---|
| Full-size refrigerator | 500 W at 33% | above tracked AC output | Estimated | Use calculator |
| CPAP without heated humidifier | 40 W at 100% | 5h 37m | Estimated | Use calculator |
| Starlink Mini | 32 W at 100% | 7h 26m | Estimated | Use calculator |
| Wi-Fi router | 12 W at 100% | 19h 23m | Estimated | Use calculator |
| LED TV | 100 W at 100% | 2h 15m | Estimated | Use calculator |
Calculator for this station
Adjust watts, duty cycle, reserve, output path, and startup surge with Energizer PPS300W2 prefilled from the source-linked specs above.
Something blocked the calculator from starting. Check your connection or reload the page to try again.

Estimated runtime
3h 45mEstimated runtime: 3h 45mThis setup is tight. Reduce load, use DC where possible, or choose a larger station.
Conservative assumes harder conditions; optimistic assumes favorable conditions.
- This is an estimate. Real runtime changes with load, temperature, battery age, AC/DC output, and device behavior.
- Usable energy
- 225 Wh
- Average load
- 60 W
- Fixed station overhead
- Unknown (not included)
- Running watts
- 60 W
- Max surge
- n/a
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
- Rated battery
- 294 Wh
- Battery capacity (Wh): 294 Wh
- Usable energy
- 225 Wh
- 294 Wh x 85% x 90% x 100% x 100%
- Average load
- 60 W
- 60 W running, 60 W average after duty cycle and quantity
- Fixed station overhead
- Unknown (not included)
- 60 W / 85% = 70.6 W battery draw; fixed overhead is unknown and excluded
- Estimated runtime
- 3h 45m
- 225 Wh / 60 W = 3h 45m
- 294 Wh nominal battery capacity
- AC inverter output path
- 85% conversion efficiency
- 10% reserve kept unused
- 60 W average load from 1 load
- 100% battery health
- 0% temperature loss
- Fixed station overhead unknown; not included
This link contains the numeric values you entered, but not custom load names.
WattRunTime.com
WattRunTime estimate
Estimated runtime
3h 45mThis setup is tight. Reduce load, use DC where possible, or choose a larger station.Runtime range
Show your work
Rated Wh is reduced by efficiency, reserve, battery health, and temperature before it is divided by average load.
Assumptions
- 294 Wh nominal battery capacity
- AC inverter output path
- 85% conversion efficiency
- 10% reserve kept unused
- 60 W average load from 1 load
- 100% battery health
- 0% temperature loss
- Fixed station overhead unknown; not included
Warnings
- This is an estimate. Real runtime changes with load, temperature, battery age, AC/DC output, and device behavior.
Share URL
Good fit when
- Capacity is a compact class; use it for small electronics and short essentials rather than high-wattage appliances.
- Tracked AC output is 300 W, so high-draw appliances and tools need careful filtering.
- USB-C output is tracked at laptop-class power, useful for direct DC charging when the device supports it.
- Tracked solar input is 60 W before panel, weather, angle, and controller losses.
Watch out for
- Surge output is tracked, but device startup behavior should still be checked against the actual load.
Related Energizer Records
Nearby source-linked models from the same brand help you compare capacity, output, and unknown fields without leaving the data set.
PPS550W1F
551.25 Wh, 700 W AC output, confidence: Verified.
PPS1100W2F
1,102.5 Wh, 1,200 W AC output, confidence: Verified.
PPS1500W2F
1,536 Wh, 1,800 W AC output, confidence: Verified.
Sources
- Energizer Power Packs PPS300W2 specifications (official; checked 2026-08-08)
