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LR721 Zn-MnO₂ battery product photo
Zn-MnO₂

LR721 Battery

LR721/LR721H Alkaline Zn-MnO₂ Button. 13mAh capacity, 1.5V nominal — factory-direct from TIANQIU with OEM custom label & packaging, compliant with EU 2023/1542.

LR721/LR721H Alkaline Zn-MnO₂ Button — a 1.5V Zn-MnO₂ battery supplied factory-direct by TIANQIU, documented at 13mAh capacity. Every unit ships with UL, CE and EU 2023/1542 documentation, and the model is available for wholesale orders or OEM production under your own brand. Request the data sheet or a sample to confirm fit before ordering.
ULCEEU 2023/1542
0% mercury OEM / custom label MOQ & quote on request
At a glance

What is a LR721 battery?

LR721 (also sold as LR721H) is a 1.5V Zn-MnO₂ button cell rated 13mAh. Alkaline zinc-manganese dioxide cells deliver 1.5 V with a long shelf life, which makes them the everyday choice for low to medium drain devices such as toys, torches, meters and thermometers. TIANQIU manufactures and supplies it factory-direct, with OEM label and packaging.

Nominal voltage1.5V
ChemistryZn-MnO₂
Rated capacity13mAh
Also sold asLR721 / LR721H
Specifications

What are the specs of a LR721 battery?

Battery NameAlkaline Zn-MnO₂ LR721/LR721H button cell (non-rechargeable)
ModelLR721
CategoryPortable battery
Chemistry systemZn-MnO₂
Trade / BrandTIANQIU/No-brand/OEM brands
Shelf LifeOne years under normal storage conditions
Production DateAccording to customer requirements, generally printed on the battery body:Y-MFor example: 64=2026-04 6X=2026-10 6Y=2026-11 6Z=2026-12
Country of OriginChina

Alkaline zinc-manganese dioxide cells deliver 1.5 V with a long shelf life, which makes them the everyday choice for low to medium drain devices such as toys, torches, meters and thermometers. The LR721 is produced on our own lines in China and can be supplied as a bare cell, on a blister card or in a printed box. Each is marked for LR721 and ships with its own EU declaration of conformity.

Same family

Other Zn-MnO₂ cells in the range with a comparable capacity — swap only when the holder and the voltage allow it.

ModelChemistryNominal voltageTypical capacity
LR626Zn-MnO₂1.5V13mAh
LR621Zn-MnO₂1.5V9mAh
LR726Zn-MnO₂1.5V17mAh
Documents for the LR721: EU declaration of compliance TQ-EUDOC-LR721-20260701 · tested to IEC 60086-1:2021, IEC 60086-2:2021, IEC 60086-3:2021, IEC 60086-5:2021. Datasheet and declaration links are in Related documents.
Performance

How does the LR721 perform?

Approx. WeightCapacityMAD
0.35g13mAh460.0 hours
Capacity & MAD test condition: 47KΩ 24h/day to 1.2V @ 20±2℃
Approx. weight only for reference
Materials

What raw materials does the LR721 contain?

ManganeseGraphite
Safety & Compliance

Is the LR721 compliant with EU 2023/1542?

LR721 is supplied under EU Regulation 2023/1542. Each shipment carries the EU declaration of conformity (No. TQ-EUDOC-LR721-20260701), tested against IEC 60086-1:2021, IEC 60086-2:2021, IEC 60086-3:2021, IEC 60086-5:2021, and an MSDS.
CE marking
CE marking
Separate collection
Separate collection
Keep out of reach
Keep out of reach
Do not recharge
Do not recharge
Ordering

What do buyers ask before ordering the LR721?

How long does a LR721 battery last?
LR721 is rated 13mAh and runs for 460.0 hours under our published test — test conditions: 47KΩ 24h/day to 1.2V @ 20±2℃. Service life in your device depends on the load and the cut-off voltage, so send us the device and we will size the cell for it.
What is inside a LR721 battery?
The LR721 is built from Manganese, Graphite — a Zn-MnO₂ system at 1.5V, rated 13mAh, about 0.35g. The material list belongs to this model's technical file, and the MSDS for the chemistry comes with the documentation set.
How long can a LR721 be stored?
Our storage statement for the LR721 reads: One years under normal storage conditions. Keep the cells in the original packaging; the storage and transport guidance that applies to this 1.5V Zn-MnO₂ model goes out with the shipment paperwork.
Is the LR721 rechargeable?
No — the LR721 is a primary (non-rechargeable) cell. Charging a primary cell can cause leakage or rupture, so replace it rather than recharge it. If your application needs recharging, ask us for the rechargeable range.
Which documents come with a LR721 order?
Each LR721 consignment carries its own EU declaration of conformity (reference TQ-EUDOC-LR721-20260701) and an MSDS. Transport documentation is issued for the consignment as the destination market requires.
How do I order the LR721 in bulk?
Send the model, your annual quantity and the packaging format. First orders start from 50 cartons per product line, and printing on the cell, blister card and box is done in our own plant with your logo and barcode.

How do I get LR721 wholesale pricing?

Factory-direct with OEM custom label & packaging. Samples available.

Downloads

Which documents are available for the LR721?

Last updated:

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