At One Place

LR6 battery

What replaces a LR6
LR6, 15A, MN1500, E91, AM3, Mignon
1.5 V alkaline, 14.5 × 50.5 mm (diameter × height)

The LR6 is a single-use 1.5 V alkaline cylindrical. The codes below are the same physical cell sold under different manufacturer names, and any of them will fit.

Specification

IEC designation
LR6
ANSI / NEDA
15A
Nominal voltage
1.5 V
Chemistry
Alkaline
Size
14.5 × 50.5 mm (diameter × height)
Typical capacity
2600 mAh
Rechargeable
No — never charge it

Codes that mean the same battery

Different manufacturers, one physical battery. Voltage, chemistry and dimensions all match.
Code Fits?
LR6 Yes — same cell
15A Yes — same cell
MN1500 Yes — same cell
E91 Yes — same cell
AM3 Yes — same cell
Mignon Yes — same cell
UM-3 Yes — same cell
Type 15 Yes — same cell
R6 (zinc-carbon size) Yes — same cell

Codes that look close but are not

Code Why it is not a substitute
14500 A lithium-ion cell in the AA shape at 3.7 V nominal, 4.2 V charged. Fitting one where an AA belongs applies more than twice the voltage and destroys most devices, sometimes spectacularly. The size match is a genuine hazard, not a convenience.
NiMH AA / HR6 Rechargeable at 1.2 V rather than 1.5. It runs almost everything, but devices that judge "low battery" by voltage will report empty early, and a few — some smoke alarms and glucose meters — refuse it outright.
FR6 lithium AA Also 1.5 V and a legitimate drop-in for most things, but it holds a higher voltage under load and runs hotter in high-drain devices. A few manufacturers specifically exclude it; check before using it in a medical device.

The LR6 is a primary cell and must never be put in a charger. Charging a sealed primary battery builds gas pressure inside a can with no vent designed for it, which is how they rupture or catch fire. Rechargeable look-alikes exist for several sizes and carry different codes — check the code, not the shape.

Where it turns up

  • TV and streaming remotes
  • Wireless mice and keyboards
  • Xbox controllers and children's toys
  • Wall clocks and smoke alarms

Capacity depends almost entirely on the drain: roughly 2600–3000 mAh at a trickle in a clock, but nearer 700–1200 mAh in a camera flash. Any single "AA capacity" number is only true at the load it was measured at.

Common questions

What is equivalent to a LR6?
LR6, 15A, MN1500, E91, AM3, Mignon, UM-3, Type 15, R6 (zinc-carbon size) — all the same 1.5 V cell under different manufacturer codes.
Can I use a 14500 instead of a LR6?
A lithium-ion cell in the AA shape at 3.7 V nominal, 4.2 V charged. Fitting one where an AA belongs applies more than twice the voltage and destroys most devices, sometimes spectacularly. The size match is a genuine hazard, not a convenience.
Is the LR6 rechargeable?
No. It is a primary cell — charging one risks rupture or fire. Rechargeable look-alikes exist in the same size under different codes.

Related pages

Sources

  1. Typical range compiled from manufacturer specifications — At One Place

How these figures are compiled and checked