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Watson BLX-1 Lithium-Ion Battery Pack (7.4V, 2250mAh)

Name: Watson BLX-1 Lithium-Ion Battery Pack (7.4V, 2250mAh)
Brand: Watson
SKU: WABLX1
Price: 29.95 USD
Availability: InStock
Rating: 3.8 (6 reviews)

BH #WABLX1 • MFR #B-3514

6 reviews

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Watson BLX-1 Lithium-Ion Battery Pack (7.4V, 2250mAh)

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Key Features

Replacement for Olympus BLX-1 Battery

The Watson BLX-1 Lithium-Ion Battery Pack is a replacement for the Olympus BLX-1-type battery. It is compatible with select Olympus mirrorless cameras. This battery has a capacity of 2250mAh, an output voltage of 7.4V, and provides 16.65Wh for longer shooting times.

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$29.95

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Watson BLX-1 Overview

UPC: 847628058064

Watson BLX-1 Specs

Battery

Battery Type	1x OM System BLX-1
Battery Capacity	2250 mAh / 16.65 Wh
Output Voltage	7.4 VDC
Battery Chemistry	Lithium-Ion
Accessory Mounting Thread	No
Dimensions	2.2 x 1.5 x 0.8" / 5.6 x 3.8 x 2 cm
Weight	2.8 oz / 80 g

Packaging Info

Package Weight	0.235 lb
Box Dimensions (LxWxH)	5.25 x 2.95 x 1.35"

Watson BLX-1 Reviews

So Disappointed

By Peter

Rated 1 out of 5

Date: 2026-05-26

I ordered this as a backup to my Olympus battery thinking it would have reasonable life. Whereas my original Olympus battery lasted several weeks and over 1300 shots and was only down to 60%, this completely ran out of battery in just over 24 hours with not that much use. From 100% to no battery left. Amazingly awful.

It Works!

By Ken

Rated 5 out of 5

Date: 2025-11-05

Exactly What I Expected. It's Been In My Camera Since It Was Delivered And Has Not Disappointed.

See any errors on this page?

Can you charge this battery in the OM-1 battery ...

Can you charge this battery in the OM-1 battery charger? In the OM-1 camera?

Asked by: Peter

Yes, the Watson BLX-1 Lithium-Ion Battery Pack (7.4V, 2250mAh) is compatible with the OM-1 battery charger and the OM-1 camera for charging.

Answered by: Boyd H

Date published: 2023-05-01

Has Watson made the battery plates yet for this?

Asked by: Mladen

Watson Battery Adapter Plate for BLX-1 BH #WARPBLX1 â¢ MFR #P-3514

Answered by: Dennis

Date published: 2025-11-18

Is it safe to charge this battery in the Hahnel ...

Is it safe to charge this battery in the Hahnel ProCube 2 charger that includes the BLX-1 plate?

Asked by: Elliot

The Watson BLX-1 Lithium-Ion Battery Pack (7.4V, 2250mAh) is compatible with the hahnel ProCUBE2 Charger Plate for Olympus BLX-1 BAT.