D Batteries (LR20 / R20)
1.5V D-size cells for high-drain and long-life applications — torches, radios, industrial gear and heat-resistant gas-stove versions.
The D cell (LR20 alkaline, about 18,000 mAh; R20 carbon-zinc) powers high-drain devices. Our range includes a heat-resistant version developed for gas-stove ignition with 30% boosted pulse power.
International Designations (IEC / ANSI / JIS)
Standard reference numbers for each battery size, per IEC 60086-2, ANSI C18.1 and JIS C8500 — the same sizes are branded differently worldwide.
| Size | IEC | ANSI | JIS | Others |
|---|---|---|---|---|
| AA | LR6 / R6 | AA · E91 | AM-3 | 24A · UM3 |
| AAA | LR03 / R03 | AAA · E92 | AM-4 | 24A · UM4 |
| C | LR14 / R14 | C · E93 | AM-2 | 14A · UM2 |
| D | LR20 / R20 | D · E95 | AM-1 | 13A · UM1 |
| 9V | 6LR61 / 6F22 | 9V · 1604A | 006P | 6AM6 |
D Batteries (LR20 / R20)
FAQ
What is the difference between LR20 and R20?
Same D size and 1.5V: LR20 is the alkaline version, R20 the carbon-zinc. LR20 gives much longer service life.
Is LR20 the same as a D cell battery?
Yes — LR20 = D cell = R20 (IEC reference 13A).
Do you have a heat-resistant D cell?
Yes — our gas-stove line uses Pulse Power Boost +30% and heat-resistant construction for kitchen environments.
Related Products
Ultra Alkaline Batteries
LR6 · LR03 · LR14 · LR20 · 6LR61
Learn More →Super Heavy Duty Batteries
R6P · R03P · R14P · R20P · 6F22
Learn More →LR20
1.5V · 34.2 mm × 61.5 mm · 18000 mAh
Buy in Bulk →OEM Projects & Case Studies
The "Stove No.1" D-cell developed for gas cooker ignition with 30% boosted pulse power and heat-resistant construction.
View Case Detail →Ready to Put Your Brand on a Great Battery?
Send us your logo and target market — we will reply with packaging options, MOQ and pricing within 24 hours.