CR2450 Battery
24.5 mm × 5.0 mm · 3V · 620 mAh
UL · UN38.3 · CE · RoHS · OEM MANUFACTURER
Technical Specification
1. Scope & Reference Standards
This specification provides the technical requirements of the CR2450. 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
CR2450 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.
Key fobs & car remotes
Car key fobs and remote-entry keychains: the cell sits behind the removable rubber cap. A fresh cell restores the push-to-start response and the range that fade as voltage drops.
Motherboard CMOS
BIOS backup cell on desktop and server motherboards. When it fades, the system forgets the clock and BIOS settings after power-off — replacement takes a minute and restores a clean startup.
Sports watches
Sports watches, heart-rate straps and cycling computers. Small cells hold 1–3 years between changes in continuous training use.
IoT tags & trackers
IoT tags, trackers and smart labels. A single cell carries a 3–5 year shelf-and-operation life in low-power paging duty.
Wholesale Battery Supplier — Factory Direct
Buy in Bulk: CR2450 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): Lithium Manganese Dioxide (Li-MnO₂) · 3V
Primary batteries are non-rechargeable; keep out of reach of children.
Official EU DeclarationOfficial EU Document Details
- Document Number
- TQ-EUDOC-CR2450-20260701
- Reference Capacity
- 550mAh ~ 620mAh
- Conformity Module
- Module A — Internal Production Control
- 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 60086-4:2025 — Primary batteries — Part 4: Safety of lithium batteries
| Battery Name: | Li-MnO₂ Button Cell (non-rechargeable) |
|---|---|
| Category: | Portable battery |
| Chemistry System: | Li-MnO₂ |
| Model: | CR2450 |
| Norminal Voltage: | 3.0V |
| Shelf Life: | One year after delivery under normal storage, 98% of initial capacity maintained |
| Country of Origin: | China |
| Approx. Weight: | 6.5-7.0g (only for reference) |
| Trade/Brand name: | TianQiu/No-brand/OEM brands |
| 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 |
Lithium, Manganese, Graphite
| Capacity | MAD |
|---|---|
| 550mAh / 1.65Wh | 1450hours |
| 600mAh / 1.80Wh | 1500hours |
| 620mAh / 1.86Wh | 1550hours |
Capacity & MAD test condition: 7.5kΩ continuously to 2.0V @ 20±2℃
SVHC Information Disclosure (REACH Article 33)The electrolyte of this product contains ethylene glycol dimethyl ether (EGDME, CAS 110-71-4) above 0.1% w/w, a substance included in the REACH Candidate List of Substances of Very High Concern (SVHC). EGDME is an essential component of lithium battery electrolytes, and no viable alternative is currently available. This information enables downstream users to fulfil their information obligations under Article 33 of the REACH Regulation.
TDC technical file available on request.
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 CR2450
If you are looking for a CR2450 replacement, the key is to match the coin · 3V · Panasonic · key fob references listed above before ordering — CR2450 batteries ship in 5-pcs/10-pcs cards or bulk packs with full specification documents.
Buyers often compare CR2450 against coin · 3V · Panasonic · key fob — 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 CR2450 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 OEM programs from the same factory — the ones that use this cell first, then other lines running at our site.
CR927 & CR2450 Cells for Asset Trackers
High-pulse CR2450 with CR927 for thin tags — sizing the cell to the device firmware so trackers hold five-year field-life targets.
CASE 01Seasonal Remote-Control Battery Program for a Home Appliance Brand
Remote battery line for TV and AC accessories: LR6/2BP and LR03/2BP paper packs under the customer label, 24 pcs per box, built around two seasonal production windows.
CASE 02CR2032 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.
FAQ
What is a CR2450 battery?
A 24.5 mm × 5.0 mm 3V lithium coin cell (~620 mAh) with high capacity for key fobs, sports watches and IoT tags.
What is CR2450 equivalent to?
CR2450 = ECR2450 = DL2450.
Can a CR2450 be recharged?
No — the CR2450 is a primary (non-rechargeable) Lithium battery. Attempting to recharge it may cause leakage, fire or explosion; for rechargeable options see our rechargeable battery page.
More common questions
Is a CR2450 the same as ECR2450 / DL2450?
CR2450 references ECR2450 / DL2450 in different naming systems — IEC, AG and retail labels name the same size cell differently.
Read the full answer →CR2450 vs CR2032 / CR2025 / CR2016 — what is the difference?
CR2450 and CR2032 / CR2025 / CR2016 share similar diameters but differ in thickness and capacity: CR2450 is 24.5 mm × 5.0 mm at 3V with 620 mAh.
Read the full answer →How long does a CR2450 last?
Service life depends on device drain: CR2450 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 a CR2450 battery?
CR2450 measures 24.5 mm in diameter and 5.0 mm in height (max dimension per IEC) — verify against your battery holder.
Read the full answer →What voltage is a CR2450?
The CR2450 is rated 3V — always match the device voltage requirement before replacing.
Read the full answer →CR2450 replacement — which battery should I buy?
Buy the same reference CR2450 (or its equivalent ECR2450 / DL2450) with the same voltage and dimensions.
Read the full answer →Does a CR2450 fit in coin · 3V · Panasonic devices?
CR2450 fits devices designed for its size class: the references coin · 3V · Panasonic are the common entries for such devices.
Read the full answer →Can I buy CR2450 in bulk?
Yes — CR2450 is supplied in bulk, raw cards or retail packs from 50 cartons (≈ US$2,000), with volume-laddered pricing.
Read the full answer →CR2450 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 CR2450?
We supply CR2450 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.