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Home › Batteries › A544
6-volt specialty battery

A544 is the same as 4LR44

1What it is2Other names3Facts4Buy it
  1. 1

    What it is

    4LR44

    A544 is just another name for 4LR44. Same battery, different label, so you can buy either one.

    Get 4LR44 on AmazonAs an Amazon Associate, KnowYourBatteries.com earns from qualifying purchases.

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  2. 2

    Names you might see in the store

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

    4LR44PX28A476A28AV4034PX
  3. 3

    Quick facts

    Size
    Short and skinny, about 2.5 cm long
    Power
    6 volts
    Keeps in a drawer for
    About 5 years
    Rechargeable?
    No, use once
    Found in things like
    Dog training collarsVintage cameras
  4. 4

    Where to buy it

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

    Our pickThe exact match, 4-packEnergizer A544 (4LR44) 6.0V Battery (4-Pack)
    Check Price on Amazon →
    Best value10-pack, handy to keep in a drawerA544 (4LR44) 6.0V Battery Value Pack (10-Pack)
    Check Price on Amazon →
    Other brandDuracell PX28A, the same batteryDuracell PX28A / 4LR44 6.0V Battery
    Check Price on Amazon →

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

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See it at real size

4LR44 next to a US quarter and an AA battery. “Real size” matches your hand once your screen is set up in Measure it.

4LR44US quarterAA

What do the letters mean?

Battery names are a code. Here’s how to read A544:

A544Energizer Proprietary for this cell
4LR44Physical cell: 13.0 × 25.2 mm, 6.0V alkaline high-v

The same battery from each brand

BrandTheir name for it
Official name4LR44
EnergizerA544
DuracellPX28A
VartaV4034PX

Exact measurements

Width
13.0 mm (0.512 in)
Length
25.2 mm
Voltage
6.0V (empty at 3.6V)
Energy stored
150 mAh
Weight
10 g
Made with
Alkaline (stacked cells)
Works between
-10 … 50 °C
Official code
4LR44

Questions people ask

Is A544 the same as 4LR44?

Yes. They’re the same battery with different names. You might also see 4LR44, PX28A, 476A, 28A.

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.

4LR44
4LR446-volt specialty battery
Get 4LR44 on AmazonAs an Amazon Associate, KnowYourBatteries.com earns from qualifying purchases.

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1What it is2Other names3Facts4Buy it