Measure it

Can’t read your battery? Measure it on screen

Your screen can work like a ruler. Three quick steps.

  1. Make your screen life-size

    Hold any bank card or ID card against the screen. Slide until the outline is exactly the same width as the card.

    Not set up yet
    Card goes here

  2. Put your battery on the screen

    Lay it flat inside the circle. Slide until the circle’s edge lines up with the battery’s edge.

  3. It’s probably one of these

    Same width, different thickness? Stack it next to a credit card: each card is about 0.76 mm thick.

    CR2032Coin battery · as thick as 4 credit cards stackedCR2025Coin battery · as thick as 3 credit cards stackedCR2016Coin battery · as thick as 2 credit cards stackedCR2012Coin battery · as thick as 2 credit cards stackedLIR2032Rechargeable coin battery · as thick as 4 credit cards stackedBR2032Coin battery · as thick as 4 credit cards stacked