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Home › Batteries › AG3
Button battery

AG3 is the same as LR41

1What it is2Safety3Other names4Tip5Facts6Buy it7Swaps
  1. 1

    What it is

    LR41+ 1.5V

    AG3 is just another name for LR41. Same battery, different label, so you can buy either one.

    Get LR41 on AmazonAs an Amazon Associate, KnowYourBatteries.com earns from qualifying purchases.

    Something wrong or missing? Tell us

  2. 2

    Safety first

    Keep away from children and pets

    A swallowed coin or button battery can cause serious burns inside the body within 2 hours. If you think one was swallowed, get emergency help right away.

    Swallowed one? What to do now →
  3. 3

    Names you might see in the store

    All of these are the same battery. Any of them will work.

    LR41192LR736GP192V3GA
  4. 4

    A tip before you buy

    SR41 is the same size and lasts longer

    It costs a little more but gives steadier power. Worth it for cameras, measuring tools and watches. For toys and laser pointers, LR41 is fine.

    About SR41Compare the two
  5. 5

    Quick facts

    Size
    About as wide as a pea
    Thickness
    As thick as 5 credit cards stacked
    Power
    1.5 volts
    Keeps in a drawer for
    About 5 years
    Rechargeable?
    No, use once
    Found in things like
    Digital thermometersLED toysLaser pointers
  6. 6

    Where to buy it

    As an Amazon Associate, KnowYourBatteries.com earns from qualifying purchases.

    Our pickThe exact match, 4-packEnergizer AG3 (LR41) 1.5V Battery (4-Pack)
    Check Price on Amazon →
    Best value10-pack, handy to keep in a drawerAG3 (LR41) 1.5V Battery Value Pack (10-Pack)
    Check Price on Amazon →
    Other brandDuracell, the same batteryDuracell LR41 / LR41 1.5V Battery
    Check Price on Amazon →

    Buttons open amazon.com 🇺🇸, picked from your country.

  7. 7

    Can I use something else?

    Can I use SR41 instead of LR41?Yes
Show more details (optional)

See it at real size

LR41 next to a US quarter and an AA battery. “Real size” matches your hand once your screen is set up in Measure it.

LR41Thickness 3.6US quarterAA

What do the letters mean?

Battery names are a code. Here’s how to read AG3:

AGAsian generic alkaline button code (JIS-style)
3Size index within the AG series. Maps to LR41, 7.9 × 3.6 mm

The same battery from each brand

BrandTheir name for it
Official nameLR41
Energizer192
Murata (formerly Sony)LR41
VartaV3GA
MaxellLR41

Exact measurements

Width
7.9 mm (0.311 in)
Thickness
3.6 mm
Voltage
1.5V (empty at 0.9V)
Energy stored
38 mAh
Weight
0.6 g
Made with
Alkaline
Works between
-10 … 60 °C
Official code
LR41

Questions people ask

Is AG3 the same as LR41?

Yes. They’re the same battery with different names. You might also see LR41, 192, LR736, GP192.

Can I use SR41 instead?

Yes, and it’s even better. Same size, but it lasts longer and gives steadier power.

How long will a spare keep in a drawer?

About 5 years if it stays cool and dry.

Can I recharge it?

No. Never try to recharge it.

Which way up does it go?

Usually with the side marked “+” facing you or facing up. Look at how the old one sits before you take it out.

LR41+ 1.5V
LR41Button battery
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1What it is2Safety3Other names4Tip5Facts6Buy it7Swaps