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Home › Batteries › E90
Small “N” size battery

E90 is the same as N

1What it is2Other names3Facts4Buy it
  1. 1

    What it is

    N

    E90 is just another name for N. Same battery, different label, so you can buy either one.

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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.

    NLR1MN9100910A
  3. 3

    Quick facts

    Size
    Short and skinny, about 3 cm long
    Power
    1.5 volts
    Keeps in a drawer for
    About 5 years
    Rechargeable?
    No, use once
    Found in things like
    Bike lightsLaser levels
  4. 4

    Where to buy it

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

    Our pickThe exact match, 4-packEnergizer E90 (N) 1.5V Battery (4-Pack)
    Check Price on Amazon →
    Best value10-pack, handy to keep in a drawerE90 (N) 1.5V Battery Value Pack (10-Pack)
    Check Price on Amazon →
    Other brandDuracell MN9100, the same batteryDuracell MN9100 / N 1.5V Battery
    Check Price on Amazon →

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

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See it at real size

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

NUS quarterAA

What do the letters mean?

Battery names are a code. Here’s how to read E90:

E90Energizer Proprietary for this cell
NPhysical cell: 12.0 × 30.2 mm, 1.5V alkaline

The same battery from each brand

BrandTheir name for it
Official nameLR1
Shop nameN
EnergizerE90
DuracellMN9100

Exact measurements

Width
12.0 mm (0.472 in)
Length
30.2 mm
Voltage
1.5V (empty at 0.9V)
Energy stored
1000 mAh
Weight
9 g
Made with
Alkaline
Works between
-18 … 55 °C
Official code
LR1

Questions people ask

Is E90 the same as N?

Yes. They’re the same battery with different names. You might also see N, LR1, MN9100, 910A.

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.

N
NSmall “N” size battery
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1What it is2Other names3Facts4Buy it