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LR20 Battery - 1.5V Alkaline Cylindrical
The LR20 alkaline 1.5V cylindrical battery — 34.2mm diameter, 18000mAh capacity. Ideal for flashlights, radios, industrial equipment.
What are the specifications of a LR20 battery?
The LR20 is a Alkaline cylindrical battery rated 1.5V, with a nominal capacity of 18000mAh. It measures 34.2mm across and 61.5mm long, and weighs 139g. The table below gives the full specification — final values are confirmed on the OEM spec sheet for your project.
| Chemistry | Alkaline |
|---|---|
| Voltage | 1.5V |
| Diameter | 34.2mm |
| Length | 61.5mm |
| Capacity | 18000mAh |
| Weight | 139g |
| Compatible | LR20 = D cell = R20 |
Specs for reference — final values per OEM project.
LR20 (D Cell) vs AA Batteries
A LR20 (D cell) is a large-area, high-capacity 1.5V cell for flashlights, radios and industrial equipment. It is not a drop-in for AA devices — check the size your product needs.
| LR20 (D) | AA (LR6) | |
|---|---|---|
| Diameter | 34.2mm | 14.0mm |
| Height | 61.5mm | 50.5mm |
| Voltage | 1.5V | 1.5V |
| Capacity | ~18000mAh | ~2500mAh |
What batteries are equivalent to the LR20?
The LR20 is interchangeable with any cell of the same diameter, length and voltage, so an equivalent can be substituted without changing the device. Buyers look these cells up under three numbering systems at once — IEC, ANSI and manufacturer codes — and the list below covers the names the LR20 is sold under.
Look any number up in the cross-reference tool → — type the marking on your cell and see where it lands, or pick your device and see the cells we supply for it.
Where is the LR20 battery used?
The LR20 is used in flashlights, radios, industrial equipment and other compact devices that draw small currents over long periods. Its 1.5V output and 18000mAh capacity suit equipment that has to run for months without a battery change. The blocks below set out what to check for each device type.
What do buyers ask about the LR20 battery?
Need the LR20 priced, or the same cell printed and packed under your own brand? Send the quantity, the target market and the packaging format, and we return price, MOQ band and the LR20 data sheet.
Printed, blister-carded and boxed in our own plant, from 50 cartons per product line. Samples are available before a production run — tell us the device the cell goes into.
LR20 Battery FAQs
What is a LR20 battery?
What is the LR20 compatible with?
What is a LR20 battery equivalent to?
Is the LR20 rechargeable?
How long does a LR20 battery last?
Does a LR20 fit my device?
How do I get LR20 battery wholesale pricing?
Pricing depends on cell grade, quantity and packaging, so quotes are issued per project rather than from a fixed list. Send your quantity, target market and label or packaging requirements, and we return a landed-cost quote together with samples — usually within one working day.