# item.guide
Side-by-Side Comparison Cylindrical Cells

21700 vs. N / LR1

Comparing 2 standards across 5 specifications. 5 key differences identified.

Comparing:
21700
N / LR1
21700 →

A 21700 Li-ion cell measures 21.1mm in diameter and 70.4mm in length. Offering 4000 to 5000 mAh capacity at 3.6V nominal, it provides up to 50% more energy density than an 18650 cell.

View full 21700 spec sheet →
N / LR1 →

An N battery (IEC designation LR1) is a 1.5V Alkaline cylindrical cell measuring approximately 12.0mm in diameter and 30.2mm in length -- between a AAA and a AA in size. It was historically common in pagers and remains used in some medical devices and specialty flashlights.

View full N / LR1 spec sheet →

Specification Comparison Table

5 Parameters
Parameter / Spec
21700
N / LR1
Diameter
21.10 mm 12.00 mm
Overall Length
70.40 mm 30.20 mm
Nominal Capacity
4000–5000 mAh —
Nominal Operating Voltage
— 1.50 V
Chemistry
— Alkaline

Other Alternatives to Compare

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