---
title: "ICR16340 equivalent: RCR123A, 16340 Li-ion, ICR16340"
description: "The ICR16340 is a 3.6 V lithium-ion (rechargeable) cell, also sold as RCR123A, 16340 Li-ion, ICR16340. Full equivalents, what does not substitute, and where it is us"
url: https://atoneplace.net/battery/16340/
site: "At One Place"
---

# ICR16340 battery

**What replaces a ICR16340: RCR123A, 16340 Li-ion, ICR16340, LIR123A**

3.6 V lithium-ion (rechargeable), 16 × 34 mm (diameter × height)

The ICR16340 is a rechargeable 3.6 V lithium-ion (rechargeable) cylindrical. The codes below are the same physical cell sold under different manufacturer names, and any of them will fit.

## Specification

- **IEC designation:** ICR16340
- **Nominal voltage:** 3.6 V
- **Chemistry:** Lithium-ion (rechargeable)
- **Size:** 16 × 34 mm (diameter × height)
- **Typical capacity:** 650 mAh
- **Rechargeable:** Yes

## Codes that mean the same battery

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

| Code | Fits? |
| --- | --- |
| RCR123A | Yes — same cell |
| 16340 Li-ion | Yes — same cell |
| ICR16340 | Yes — same cell |
| LIR123A | Yes — same cell |

## Codes that look close but are not

| Code | Why it is not a substitute |
| --- | --- |
| CR123A | The primary it replaces: 17 × 34.5 mm at 3.0 V and 1500 mAh, against 16 × 34 mm at 3.7 V and 650. The rechargeable is higher voltage and less than half the capacity. Many torches tolerate both, some are damaged by the extra volt, and no CR123A should ever meet a charger. |

## Where it turns up

- Compact rechargeable torches
- Some security camera and doorbell packs
- Laser sights
- Small RC models

> Genuine capacity runs 550–800 mAh. Wrappers claiming 1200 mAh or more in this size are misdescribed.

## Common questions

### What is equivalent to a ICR16340?

RCR123A, 16340 Li-ion, ICR16340, LIR123A — all the same 3.6 V cell under different manufacturer codes.

### Can I use a CR123A instead of a ICR16340?

The primary it replaces: 17 × 34.5 mm at 3.0 V and 1500 mAh, against 16 × 34 mm at 3.7 V and 650. The rechargeable is higher voltage and less than half the capacity. Many torches tolerate both, some are damaged by the extra volt, and no CR123A should ever meet a charger.

### Is the ICR16340 rechargeable?

Yes. Use a charger made for its chemistry and never substitute a primary cell of the same size.

## Related pages

- [LR6 battery](https://atoneplace.net/battery/aa/)
- [LR03 battery](https://atoneplace.net/battery/aaa/)
- [ICR18650 battery](https://atoneplace.net/battery/18650/)
- [LR20 battery](https://atoneplace.net/battery/d/)
- [HR6 battery](https://atoneplace.net/battery/nimh-aa/)
- [LR14 battery](https://atoneplace.net/battery/c/)
- [CR17345 battery](https://atoneplace.net/battery/cr123a/)
- [HR03 battery](https://atoneplace.net/battery/nimh-aaa/)
- [8LR932 battery](https://atoneplace.net/battery/a23/)
- [FR6 battery](https://atoneplace.net/battery/fr6/)
- [INR21700 battery](https://atoneplace.net/battery/21700/)
- [4LR44 battery](https://atoneplace.net/battery/4lr44/)

## Sources

- Typical range compiled from manufacturer specifications — At One Place (/about/)