Power fact sheet

Battery & charger for your OM System PEN E-PM1

Interchangeable-lens digital camera (Micro Four Thirds)

Information from OM System on battery, charging and memory cards – as of 01/10/2026.

Battery: BLS‑5 (7.2 V)
Note on the battery: Depending on the kit, the BLS‑1 or the BLS‑5 was supplied; according to OM Digital Solutions’ compatibility table, the BLS‑1, BLS‑5 and BLS‑50 fit. The BLS‑1 is only charged in the BCS‑1 charger, the BLS‑5 and BLS‑50 in the BCS‑5.
Shots per battery charge: approx. 300 (CIPA)
Charging in the camera: No – the battery is charged in the supplied charger (BCS‑5 for the BLS‑5/BLS‑50, BCS‑1 for the BLS‑1); according to OM Digital Solutions, the USB-AC adapter F‑5AC for charging in the camera is not compatible
Memory cards: SD (UHS‑I)
Weight: approx. 265 g with battery and memory card (body only approx. 217 g)

Measurement conditions according to OM System: figure from the E-PM2/E-PM1 comparison table by OM Digital Solutions (BLS-1 or BLS-5 battery), with no measurement conditions given there; the launch press release did not yet give a figure; one figure, not split by monitor and viewfinder.

Sources (5) · retrieved on 01/10/2026

OM System and PEN E-PM1 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 PEN E-PM1 uses the BLS‑5 battery – Baxxtar offers it as a single battery, in a twin pack and in a set with a charger.

Baxxtar BLS‑5: 1100 mAh · 7.4 V · 8.1 Wh

View matching batteries & sets

Not your camera? Choose another model

Baxxtar BLS-5 battery, compatible with the OM System PEN E-PM1

Switching cameras

Your Baxxtar BLS‑5 also fits …

According to our compatibility list, the Baxxtar BLS‑5 also fits these 13 cameras. If you switch to one of them, you can keep using your Baxxtar batteries and charger.

OM‑D E‑M10
OM‑D E‑M10 Mark II
PEN E‑P3
PEN E‑PL1
PEN E‑PL2
PEN E‑PL3
PEN E‑PL5
PEN E‑PL6
PEN E‑PL7
PEN E‑PL8
PEN E‑PM2
Stylus 1
Stylus 1s

Battery planner

How many batteries do you need?

Set how much you photograph in a day – the planner works with the figures from OM System for the PEN E-PM1.

Photos per day 800 Allow for a reserve – one extra batteryAccording to OM System, battery life is shorter in the cold, with frequent focusing by pressing the shutter button halfway, with long image display on the monitor and when connected to a computer or printer.

Guide value

3battery charges

Battery in the camera + 2 spare batteries – for example, the twin pack.

A guide value, not a guarantee: based on approx. 300 shots per battery charge (CIPA figure from OM System for the PEN E-PM1, a standardised comparison test). 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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