GLOBAL — August 2, 2026 — "How long will it last?"
It's the question every homeowner asks the moment they hear the word "battery." And it's the one most brochures answer with phrases like "whole-home backup" or "hours of protection" — language designed to sound reassuring without committing to a single number.
Today, we're committing. Room by room. Appliance by appliance. Watt by watt.
Here is exactly what a 16kWh home battery — the standard capacity in EXLIPORC's residential lineup, built on 314Ah LFP cells — will power during a blackout.
16 kilowatt-hours equals 16,000 watt-hours.
If your home draws 1,000 watts continuously, the battery lasts 16 hours. If it draws 500 watts, 32 hours. If it draws 4,000 watts — say, running central air conditioning, an electric oven, and a pool pump simultaneously — about 4 hours.
The key insight is that during a blackout, you're not running everything. You're running essentials. Let's define what those essentials actually draw.
The refrigerator is the single most important backup load. A modern Energy Star refrigerator cycles on and off, drawing about 150 watts while running and operating roughly 8 hours out of every 24. That's 1,200 watt-hours — about 7.5% of a full charge.
| Appliance | Power Draw | Daily Runtime | Daily Consumption |
|---|---|---|---|
| Refrigerator (standard) | 150W | 8 hours (cycling) | 1,200 Wh |
| Chest freezer | 100W | 8 hours (cycling) | 800 Wh |
| Microwave (15 min/day) | 1,000W | 15 minutes | 250 Wh |
| Coffee maker (1 pot) | 900W | 10 minutes | 150 Wh |
| Kitchen daily subtotal | — | — | 2,400 Wh (2.4 kWh) |
The verdict: Your refrigerator and freezer will run indefinitely on a 16kWh battery through a multi-day outage. These are not the appliances you need to worry about.
During a blackout, your living room becomes command central. The loads here are small, but they matter enormously for comfort and information.
| Appliance | Power Draw | Daily Runtime | Daily Consumption |
|---|---|---|---|
| WiFi router + modem | 15W | 24 hours | 360 Wh |
| LED TV (55-inch) | 80W | 4 hours | 320 Wh |
| Two laptops charging | 65W each | 3 hours each | 390 Wh |
| LED lights (10 bulbs * 5 hrs) | 8W each | 5 hours | 400 Wh |
| Phone charging (4 devices) | 10W each | 2 hours each | 80 Wh |
| Living room daily subtotal | — | — | 1,550 Wh (1.55 kWh) |
The verdict: Connectivity, lighting, and entertainment are negligible draws on a 16kWh system. Stay online. Stay informed. Let the kids watch a movie. The battery won't notice.
