TIANQIU
Li-MnO₂ · Technical file
CR1220 Battery — Data Sheet & EU Declaration
CR1220 Li-MnO₂ Button. The measured record for this model — 38mAh (0.114Wh) capacity, 3.0V nominal, performance table, materials and the EU 2023/1542 declaration. Buying, equivalents and OEM packaging are on the model page.
CR1220 Li-MnO₂ Button — a 3.0V Li-MnO₂ battery supplied factory-direct by TIANQIU, documented at 38mAh (0.114Wh) capacity. Every unit ships with UL, UN38.3, 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 2023/1542UN38.3
0% mercury OEM / custom label MOQ & quote on request
At a glance
What is a CR1220 battery?
CR1220 is a 3.0V Li-MnO₂ button cell rated 38mAh (0.114Wh). Lithium manganese dioxide cells hold a steady 3.0 V for most of their life, which is why they are the default choice for memory backup, key fobs, remote controls and low-current sensors. TIANQIU manufactures and supplies it factory-direct, with OEM label and packaging.
| Nominal voltage | 3.0V |
|---|---|
| Chemistry | Li-MnO₂ |
| Rated capacity | 38mAh (0.114Wh) |
| Approx. weight | 0.8g (only for reference) |
Specifications
What are the specs of a CR1220 battery?
| Battery Name | Li-MnO₂ Button Cell (non-rechargeable) |
|---|---|
| Model | CR1220 |
| Category | Portable battery |
| Chemistry system | Li-MnO₂ |
| Weight | 0.8g (only for reference) |
| Trade / Brand | TIANQIU/No-brand/OEM brands |
| Shelf Life | One year after delivery under normal storage, 98% of initial capacity maintained |
| Production Date | According to customer requirements, generally printed on the battery negative electrode:Y-MFor example: 64=2026-04 6X=2026-10 6Y=2026-11 6Z=2026-12 |
| Country of Origin | China |
Lithium manganese dioxide cells hold a steady 3.0 V for most of their life, which is why they are the default choice for memory backup, key fobs, remote controls and low-current sensors. The CR1220 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 CR1220 and ships with its own EU declaration of conformity.
Same family
Which cells are close to the CR1220?
Other Li-MnO₂ cells in the range with a comparable capacity — swap only when the holder and the voltage allow it.
| Model | Chemistry | Nominal voltage | Typical capacity | Weight |
|---|---|---|---|---|
| CR1025 | Li-MnO₂ | 3.0V | 30mAh (0.090Wh) | 0.6g (only for reference) |
| CR2016 | Li-MnO₂ | 3.0V | 75mAh ~ 100mAh | 1.6-1.9g (only for reference) |
| CR2025 | Li-MnO₂ | 3.0V | 130mAh ~ 185mAh | 2.3-2.6g (only for reference) |
Documents for the CR1220: EU declaration of compliance
TQ-EUDOC-CR1220-20260622 · tested to IEC 60086-1:2021, IEC 60086-2:2021, IEC 60086-3:2021, IEC 60086-4:2025. Datasheet and declaration links are in Related documents.Performance
How does the CR1220 perform?
| Capacity | MAD |
|---|---|
| 38mAh / 0.114Wh | 750hours |
Capacity & MAD test condition: 62kΩ continuously to 2.0V @ 20±2℃
Materials
What raw materials does the CR1220 contain?
LithiumManganeseGraphite
Safety & Compliance
Is the CR1220 compliant with EU 2023/1542?
CR1220 is supplied under EU Regulation 2023/1542. Each shipment carries the EU declaration of conformity (No.
TQ-EUDOC-CR1220-20260622), tested against IEC 60086-1:2021, IEC 60086-2:2021, IEC 60086-3:2021, IEC 60086-4:2025, and an MSDS, plus UN38.3 transport documentation for the lithium cell.
CE marking
Separate collection
Keep out of reach
Do not recharge
Documentation
What do buyers ask about the CR1220 data sheet and EU declaration?
Where is the EU declaration of conformity for the CR1220?
Every CR1220 shipment carries its own EU declaration of conformity (document TQ-EUDOC-CR1220-20260622) and an MSDS, plus UN38.3 transport documentation for the lithium cell. Ask for the current file set and we send the signed copies.
How is this page different from the CR1220 model page?
This page is the technical record: capacity, the performance table with its discharge conditions, materials and the compliance file. The model page covers the CR1220 as a product — interchangeable numbers, packaging formats and bulk supply.
Are the CR1220 performance figures measured or nominal?
The performance table is the measured data we hold for the model at the discharge conditions printed with it. Nominal figures are labelled nominal, and typical capacity is given as a range because it moves with the cut-off voltage.
Ordering
What do buyers ask before ordering the CR1220?
How long does a CR1220 battery last?
CR1220 is rated 38mAh / 0.114Wh and runs for 750hours under our published test — test conditions: 62kΩ continuously to 2.0V @ 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 CR1220 battery?
The CR1220 is built from Lithium, Manganese, Graphite — a Li-MnO₂ system at 3.0V, rated 38mAh / 0.114Wh, about 0.8g (only for reference). 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 CR1220 be stored?
Our storage statement for the CR1220 reads: One year after delivery under normal storage, 98% of initial capacity maintained. Keep the cells in the original packaging; the storage and transport guidance that applies to this 3.0V Li-MnO₂ model goes out with the shipment paperwork.
Is the CR1220 rechargeable?
No — the CR1220 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 CR1220 order?
Each CR1220 consignment carries its own EU declaration of conformity (reference TQ-EUDOC-CR1220-20260622) and an MSDS. As a lithium cell, the shipment also carries UN38.3 transport documentation.
How do I order the CR1220 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 CR1220 wholesale pricing?
Factory-direct with OEM custom label & packaging. Samples available.
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