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How e-ink sips power

A short explainer on why electronic paper lasts weeks on a charge while LCDs last hours.

People are often surprised that InkView runs for weeks on a small battery. The trick isn't a huge cell — it's the display technology.

Bistable by design

An e-ink screen is bistable: once a pixel flips to black or white, it stays there with no power at all. The panel only draws current during the brief moment it redraws the image. Hold a frame for an hour, a day, a week — it costs nothing.

An LCD, by contrast, has to light every pixel continuously. That backlight is what drains a tablet in hours.

Refresh on your terms

Because each refresh is the only thing that costs energy, battery life comes down to how often you update:

  • Default — a few refreshes an hour → around six weeks.
  • Quiet hours — pause overnight → stretches into months.

Quiet by nature

No backlight also means no glare and no light pollution. InkView reads like paper on a shelf — there when you glance at it, invisible when you don't.