Power fact sheet

Battery & charger for your OM System OM-1

Interchangeable-lens digital camera (Micro Four Thirds)

Information from OM System on battery, charging and memory cards – as of 29/09/2026.

Battery: BLX‑1 (7.2 V)
Note on the battery: The BLH‑1 from the E‑M1X, E‑M1 Mark III and E‑M1 Mark II does not fit – it has a different shape from the BLX‑1
Shots per battery charge: approx. 520 (CIPA)
Video per battery charge: approx. 90 min (JEITA standard)
Charging in the camera: Yes – via USB‑C with the camera switched off; with the USB-AC adapter F‑7AC also with the camera switched on (more slowly then; switched off approx. 2 h 30 min); charging behaviour depends on the USB device
Power via USB: Yes – via USB‑C with USB PD devices, e.g. the USB-AC adapter F‑7AC or a PD power bank; with the F‑7AC, the battery charges at the same time; a battery must be inserted
Vertical grip: Power Battery Holder HLD‑10 (available separately, for a second BLX‑1)
Memory cards: Slot 1: SD (UHS‑I/UHS‑II)
Slot 2: SD (UHS‑I/UHS‑II)
Weight: 599 g with battery and memory card (based on CIPA, without eyecup)

Measurement conditions according to OM System: CIPA standard with KIOXIA KSDXU-A064G memory card, image stabiliser on, without flash; one figure, not split by monitor and viewfinder; with Quick Sleep mode (power-saving mode) enabled approx. 1,100 shots; video: JEITA standard (without zooming or other operations approx. 160 minutes).

Charging and power via USB: information from OM System on the camera – we have not tested whether it also charges replacement batteries in the camera.

Sources (8) · retrieved on 29/09/2026

OM System and OM-1 are trademarks or product names of their respective owners. Baxxtar is an independent brand and is not affiliated with OM System – the names only show which camera our products fit.

Battery check for your camera

Which Baxxtar battery fits?

According to OM System, the OM System OM-1 uses the BLX‑1 battery – Baxxtar offers it as a single battery, in a twin pack and in a set with a charger.

Baxxtar BLX‑1: 2600 mAh · 7.2 V · 18.7 Wh

View matching batteries & sets

Not your camera? Choose another model

Baxxtar BLX-1 battery, compatible with the OM System OM-1

Switching cameras

Your Baxxtar BLX‑1 also fits …

According to our compatibility list, the Baxxtar BLX‑1 also fits these 2 cameras. If you switch to one of them, you can keep using your Baxxtar batteries and charger.

OM‑1 Mark II
OM‑3

Battery planner

How many batteries do you need?

Set how much you shoot or film in a day – the planner works with the figures from OM System for the OM-1.

Photos per day 800 Allow for a reserve – one extra battery

Guide value

2battery charges

Battery in the camera + 1 spare battery – for example, the single battery.

A guide value, not a guarantee: based on approx. 520 shots per battery charge (CIPA figure from OM System for the OM-1, a standardised comparison test) or approx. 90 minutes of video (JEITA standard). According to OM System, the actual runtime depends on the conditions of use; we have not measured these figures with Baxxtar batteries.

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