---
title: "CR2450 equivalent: DL2450, ECR2450, KCR2450"
description: "The CR2450 is a 3 V lithium (primary) cell, also sold as DL2450, ECR2450, KCR2450. Full equivalents, what does not substitute, and where it is used."
url: https://atoneplace.net/battery/cr2450/
site: "At One Place"
---

# CR2450 battery

**What replaces a CR2450: DL2450, ECR2450, KCR2450, BR2450, 5029LC, SB-A8**

3 V lithium (primary), 24.5 × 5 mm (diameter × height)

The CR2450 is a single-use 3 V lithium (primary) coin cell. The codes below are the same physical cell sold under different manufacturer names, and any of them will fit.

## Specification

- **IEC designation:** CR2450
- **ANSI / NEDA:** 5029LC
- **Nominal voltage:** 3 V
- **Chemistry:** Lithium (primary)
- **Size:** 24.5 × 5 mm (diameter × height)
- **Typical capacity:** 620 mAh
- **Rechargeable:** No — never charge it

## Codes that mean the same battery

*Different manufacturers, one physical battery. Voltage, chemistry and dimensions all match.*

| Code | Fits? |
| --- | --- |
| DL2450 | Yes — same cell |
| ECR2450 | Yes — same cell |
| KCR2450 | Yes — same cell |
| BR2450 | Yes — same cell |
| 5029LC | Yes — same cell |
| SB-A8 | Yes — same cell |

## Codes that look close but are not

| Code | Why it is not a substitute |
| --- | --- |
| CR2477 | Same 24.5 mm diameter but 7.7 mm tall instead of 5.0. It carries far more charge and will not close a CR2450 compartment. |
| CR2430 | Same diameter, 3.0 mm thick. It rattles in a CR2450 holder and holds about half the charge. |
| LIR2450 | Rechargeable at 3.6 V nominal. Never charge a CR2450. |

> The CR2450 is a primary cell and must never be put in a charger. Charging a sealed primary battery builds gas pressure inside a can with no vent designed for it, which is how they rupture or catch fire. Rechargeable look-alikes exist for several sizes and carry different codes — check the code, not the shape.

## Where it turns up

- Smart door locks and Yale/August keypads
- Zigbee and Z-Wave door and motion sensors
- Blood glucose meters
- Heated ski gloves and electric-scooter remotes

## Common questions

### What is equivalent to a CR2450?

DL2450, ECR2450, KCR2450, BR2450, 5029LC, SB-A8 — all the same 3 V cell under different manufacturer codes.

### Can I use a CR2477 instead of a CR2450?

Same 24.5 mm diameter but 7.7 mm tall instead of 5.0. It carries far more charge and will not close a CR2450 compartment.

### Is the CR2450 rechargeable?

No. It is a primary cell — charging one risks rupture or fire. Rechargeable look-alikes exist in the same size under different codes.

## Related pages

- [CR2032 battery](https://atoneplace.net/battery/cr2032/)
- [CR2025 battery](https://atoneplace.net/battery/cr2025/)
- [CR2016 battery](https://atoneplace.net/battery/cr2016/)
- [CR1220 battery](https://atoneplace.net/battery/cr1220/)
- [CR1620 battery](https://atoneplace.net/battery/cr1620/)
- [CR1632 battery](https://atoneplace.net/battery/cr1632/)
- [CR2430 battery](https://atoneplace.net/battery/cr2430/)
- [CR2477 battery](https://atoneplace.net/battery/cr2477/)
- [CR1616 battery](https://atoneplace.net/battery/cr1616/)
- [CR1225 battery](https://atoneplace.net/battery/cr1225/)
- [LIR2032 battery](https://atoneplace.net/battery/lir2032/)
- [BR2032 battery](https://atoneplace.net/battery/br2032/)

## Sources

- Official vendor product documentation — At One Place (/about/)