Buy backup power by the numbers.
Compare capacity, inverter output, solar input and expansion—and size your system around the loads you actually need during an outage.
Backup power is an engineering decision.
Watt-hours determine runtime. Inverter watts determine simultaneous load. Recharge power determines whether your system can recover during a long outage.
Portable Power Stations
Compare battery capacity, inverter output, weight, solar input and expansion options.
LiFePO4 Batteries
Size lithium battery banks for RV, solar and backup systems using watt-hours, voltage, BMS current and charging constraints.
Solar Kits & DIY Solar
Size panels, MPPT controllers, batteries and inverters for RVs, sheds, cabins and off-grid systems.
Home Backup Power
Size backup systems around the loads that actually matter during an outage.
Solar Generators
Match battery capacity with realistic solar input and recharge windows.
Emergency Power
Plan resilient backup for refrigerators, internet, lighting, pumps and essential devices.
RV & Off-Grid Power
Understand watt-hours, inverter limits, charging and expansion before buying.
Brand & Model Comparisons
Side-by-side decisions built from manufacturer specifications and use-case fit.
Four calculators before you spend $1.
Turn appliance loads, outage goals and solar-array specifications into a battery, panel and controller target before comparing brands.
Battery Runtime Calculator
Estimate AC runtime from battery Wh, load watts and conversion efficiency.
Home Backup Sizing
Add critical loads and daily hours to estimate the battery capacity you need.
Solar Recharge Calculator
Estimate recharge time using panel watts, sun hours and real-world efficiency.
MPPT Controller Sizing
Estimate controller output current and cold-weather PV string voltage.
High-intent buying guides
Best Portable Power Station for a Refrigerator: How to Size It Correctly
Choose a power station for a refrigerator using running watts, compressor surge and usable battery capacity—not marketing claims.
Best Portable Power Station for CPAP: Runtime, Humidifier Draw & Backup Planning
Calculate CPAP backup runtime and understand how humidifiers, heated tubing and AC inverter losses change battery needs.
Best Power Station for an Apartment: Quiet Backup Without a Gas Generator
What apartment dwellers should prioritize in a battery backup: size, output, recharge speed, noise, storage and safe indoor operation.
1000Wh vs 2000Wh Power Station: Which Battery Size Is Worth It?
Compare 1 kWh and 2 kWh power stations by usable runtime, portability, recharge time and cost per watt-hour.
LiFePO4 vs Lithium-Ion Power Stations: What Actually Matters
A practical comparison of LFP and other lithium chemistries for cycle life, weight, heat tolerance and backup-power ownership.
EcoFlow DELTA Pro 3 vs Anker SOLIX F3800: 4kWh Home Backup Compared
Compare capacity, inverter output, solar input, weight and expansion of EcoFlow DELTA Pro 3 and Anker SOLIX F3800.
Compare current product classes
Source-linked manufacturer specifications. Prices are intentionally excluded from the core database because promotions change faster than electrical specifications.
| Model | Capacity | AC output | Solar input | Weight | Battery |
|---|---|---|---|---|---|
| EcoFlow DELTA 3 Plus | 1,024 Wh | 1,800 W | 1,000 W | 27.6 lb | LFP |
| Jackery Explorer 1000 v2 | 1,070 Wh | 1,500 W | 400 W | 23.8 lb | LiFePO4 |
| BLUETTI AC180 | 1,152 Wh | 1,800 W | 500 W | 35.3 lb | LiFePO4 |
| VTOMAN FlashSpeed 1500 | 1,548 Wh | 1,500 W | 400 W | 41.4 lb | LiFePO4 |
| OUPES Mega 2 | 2,048 Wh | 2,500 W | 2,100 W | 48.5 lb | LiFePO4 |
| EcoFlow DELTA 2 Max | 2,048 Wh | 2,400 W | 1,000 W | 50 lb | LFP |
| BLUETTI AC200L | 2,048 Wh | 2,400 W | 1,200 W | 62.4 lb | LFP |
| Jackery Explorer 2000 Plus | 2,042.8 Wh | 3,000 W | 1,400 W | 61.5 lb | LiFePO4 |
| Dabbsson DBS2300 Plus | 2,330 Wh | 2,200 W | 800 W | 58.15 lb | Semi-solid-state LiFePO4 |
| Mango Power Power E | 3,533 Wh | 3,000 W | 2,000 W | 100.1 lb | LFP |
| Anker SOLIX F3800 | 3,840 Wh | 6,000 W | 2,400 W | 132 lb | LFP |
| EcoFlow DELTA Pro 3 | 4,096 Wh | 4,000 W | 2,600 W | 113.54 lb | LFP |