Side-by-side comparison of price per watt-hour, capacity, and specs. Updated 2026-04-05.
Choose Generic 999Wh 1000W if you want better value per watt-hour. At $279.99 for 999Wh, it costs less per unit of stored energy.
Choose Generic 288Wh 300W if you prefer the 288Wh capacity. The 288Wh provides approximately 3.8 hours of laptop runtime vs 13.1 hours.
Not sure what capacity you actually need? Use our size calculator to find out. To see which station runs your specific devices longest, try the runtime calculator.
Yes — 19% is a meaningful difference. Over the lifetime of the product, buying at 0.2803/Wh vs 0.3472/Wh saves real money.
Generic 999Wh 1000W: check listing. Generic 288Wh 300W: LiFePO4. LiFePO4 batteries last 2,000-4,000 cycles vs 300-800 for standard Li-ion — an important consideration for long-term value. See our full comparison.