LR20 Battery
34.2 mm × 61.5 mm · 1.5V · 18000 mAh
UL · UN38.3 · CE · RoHS · OEM MANUFACTURER
Technical Specification
1. Scope & Reference Standards
This specification provides the technical requirements of the LR20. The battery complies with the international and EU standards listed below; unless otherwise specified, requirements and sizes shall meet or exceed the referenced standard.
2. Chemical System, Voltage and Designation
3. Operating Temperature Range
-20℃ ~ +60℃
Per IEC 60086-5 for aqueous-electrolyte batteries — confirm with our engineers for your specific device.
4. Size & Weight
5. Product Tags & Application
Equivalent & Cross-Reference
These references are electrically compatible. Always match size and voltage before replacing.
Common Applications
LR20 is used every day in these classes of devices — the cell is matched to each duty below, and every pack is tested against the appliance profile before dispatch.
Flashlights & torches
Keychain lamps and pocket flashlights. The high-rate button cell drives bright LEDs on demand and stores safely in a pocket for years.
Radios & portable audio
Radios, portable audio and wireless doorbells. Standby drain is tiny, so the cell keeps the receiver alive between battery changes.
Industrial devices
Meters, PLC memory backup and test instruments. Industrial channels order these cells with per-batch COA and long shelf-life stock.
Emergency lighting
Emergency lighting and exit signs. The cell maintains the battery-backup circuit that fires up the lamp when the power fails.
Wholesale Battery Supplier — Factory Direct
Buy in Bulk: LR20 available for distribution in bulk packs, 5-pcs child-resistant cards or custom retail packaging under your brand. From blister cards to display boxes, your private label battery brand on every cell. Minimum order 50 cartons (about US$2,000) — a proven entry for chains testing private label battery lines.
EU Battery Regulation (EU) 2023/1542
Manufacturer declaration by DongGuan Tianqiu per Regulation (EU) 2023/1542 — compliance documents per model are stored on this site; models without a published declaration are issued per batch on request.
Chemical system (EU declaration): Alkaline (Zn-MnO₂) · 1.5V
Primary batteries are non-rechargeable; keep out of reach of children.
Declaration Available on RequestDeclaration Available on Request
The official EU declaration for the LR20 is issued by our compliance team on request — per-batch COA and test data included. Contact us for the current document package.
- IEC 60086-1:2021 — Primary batteries — Part 1: General
- IEC 60086-2:2021 — Primary batteries — Part 2: Physical and Electrical Specification
- IEC 60086-3:2021 — Primary batteries — Part 3: Watch batteries
- IEC 60086-5:2021 — Primary batteries — Part 5: Safety of batteries with aqueous electrolyte
| Chemical system (EU declaration) | Alkaline (Zn-MnO₂) |
|---|---|
| Nominal Voltage | 1.5V |
| Nominal Dimensions | 34.2 mm × 61.5 mm |
| Capacity | 18000 mAh |
D-size cylindrical cell.
DongGuan Tianqiu Enterprise Co., Ltd.
TianQiu Industrial Park, Xinji Industrial Zone, Machong Town, Dongguan Guangdong, P.R.China
Post Code: 523142
E-mail: office@gdtianqiu.com
Apex CE Specialists GmbH
Grafenberger Allee 277, 40237 Düsseldorf, DE
Contact: Wells Yan
E-mail: Info@apex-ce.com
Tel: +49 21312066043
- Mercury (Hg): ≤ 0.0005% by weight
- Cadmium (Cd): ≤ 0.002% by weight (portable batteries only)
- Lead (Pb): ≤ 0.01% by weight (portable batteries only; zinc-air button cells exempt until 18 August 2028)
- REACH Regulation (EC) 1907/2006, Annex XVII — applicable restrictions complied with.
- EU POPs Regulation (EU) 2019/1021 — complied with.
Marking & Symbols — Regulation (EU) 2023/1542, Article 13
- CE marking — Indicates that the battery conforms to the applicable EU conformity requirements and is placed on the European market lawfully.
- Crossed-out wheeled bin symbol — Indicates that the battery must not be disposed of with household waste — separate collection is required.
- Do not recharge symbol — This battery is non-rechargeable; attempting to recharge it may cause leakage, fire or explosion.
- Service life marker — The XX.Xh circle mark shows the rated service life of the battery under reference discharge conditions.
- Keep out of reach of children symbol — A warning to prevent ingestion — small batteries cause severe burns in 2 hours; seek medical attention immediately.
Swallowing or ingestion of any button cell battery is a life-threatening injury!
Swallowing can lead to chemical burns, perforation of soft tissue, and death. Severe burns can occur within 2 hours of ingestion. Seek medical attention immediately.
Buying Guide: What Buyers Search for LR20
If you are looking for an LR20 replacement, the key is to match the D cell · size D · replacement · DLR20 references listed above before ordering — LR20 batteries ship in 5-pcs/10-pcs cards or bulk packs with full specification documents.
Buyers often compare LR20 against D cell · size D · replacement · DLR20 — they share diameter or voltage but differ in thickness and capacity, so always match the original cell. Our engineers confirm compatibility for your device and provide the matching reference without guesswork.
For distributors and OEM buyers searching LR20 bulk, price and lead time: we supply from 50 cartons (≈ US$2,000) with volume-laddered pricing, shipping marks and transport certificates — request the current price list for your volumes.
Procurement Guide — How to Order
From first inquiry to production line in five steps, with one engineer on your order from start to finish.
Send your inquiry
Quantity in cartons or pieces, destination port and market. We reply within 24 hours with a complete quotation.
Check specs, approve samples
Spec sheets first, then samples by express in 3–7 days so you can test fit and performance on your own device.
Confirm the written offer
Price, MOQ (from 50 cartons, approx. US$2,000) and lead time are fixed in the offer, and the price is held for 30 days.
OEM / ODM preparation
Your logo, pack design and artwork enter the prepress flow; before mass production we print one sample box for your visual approval.
Production, QC and delivery
Mass production runs about 35 days from sample approval, with per-batch COA and transport certificates (UN38.3 for lithium cells) in the shipment.
Project Cases
Real programs from our production lines that used this cell — volumes, packaging and quality documents in one page.
CR2032 Child-Resistant Cards for a Key Fob Distributor
Locksmith and car-accessory channel supply: CR2032 on 5-pcs child-resistant cards (EU retail requirement), quarter replenishment driven by store sell-out.
CASE 06CR2032 Supply for a Motherboard Line
CR2032 kitted per production batch and delivered on a monthly kanban to a motherboard assembly line, with export documentation for finished units.
CASE 10High-Temperature D-Cell for Gas Stoves
The "Stove No.1" D-cell developed for gas cooker ignition with 30% boosted pulse power and heat-resistant construction.
FAQ
What is an LR20 battery?
LR20 is the D-size 1.5V alkaline cell (34.2 mm × 61.5 mm, ~18000 mAh) for flashlights, radios and industrial equipment.
Is LR20 the same as a D cell?
Yes. LR20 = D cell = R20 (R20 is the carbon-zinc version).
Can an LR20 be recharged?
No — the LR20 is a primary (non-rechargeable) Alkaline battery. Attempting to recharge it may cause leakage, fire or explosion; for rechargeable options see our rechargeable battery page.
More common questions
Is an LR20 the same as D cell / R20 / 13A?
LR20 references D cell / R20 / 13A in different naming systems — IEC, AG and retail labels name the same size cell differently.
Read the full answer →LR20 vs CR2032 / LR44 — what is the difference?
LR20 and CR2032 / LR44 share similar diameters but differ in thickness and capacity: LR20 is 34.2 mm × 61.5 mm at 1.5V with 18000 mAh.
Read the full answer →How long does an LR20 last?
Service life depends on device drain: LR20 typically runs 1–3 years in normal use and stores 3–5 years when kept cool and dry.
Read the full answer →What size is an LR20 battery?
LR20 measures 34.2 mm in diameter and 61.5 mm in height (max dimension per IEC) — verify against your battery holder.
Read the full answer →What voltage is an LR20?
The LR20 is rated 1.5V — always match the device voltage requirement before replacing.
Read the full answer →LR20 replacement — which battery should I buy?
Buy the same reference LR20 (or its equivalent D cell / R20 / 13A) with the same voltage and dimensions.
Read the full answer →Does an LR20 fit in D cell · size D · replacement devices?
LR20 fits devices designed for its size class: the references D cell · size D · replacement are the common entries for such devices.
Read the full answer →Can I buy LR20 in bulk?
Yes — LR20 is supplied in bulk, raw cards or retail packs from 50 cartons (≈ US$2,000), with volume-laddered pricing.
Read the full answer →LR20 wholesale price — how is it quoted?
Wholesale pricing is laddered by carton volume and packaging format: raw, card or retail pack each carry different unit costs.
Read the full answer →Where can I buy LR20?
We supply LR20 factory-direct worldwide — samples, bulk and OEM programs from the same production line.
Read the full answer →
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.