Power fact sheet

Battery & charger for your Sony Alpha 33 (SLT-A33)

Interchangeable-lens digital camera

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

Battery: NP‑FW50 (7.2 V)
Shots per battery charge: approx. 340 using the monitor · approx. 270 using the viewfinder (CIPA)
Charging in the camera: No – according to Sony, the charger BC‑VW1 is included; Sony does not mention charging in the camera
Power via USB: Sony does not mention power supply via USB; mains power with the power adapter AC‑PW20 (available separately)
Memory cards: One slot: SD/SDHC/SDXC or Memory Stick PRO Duo/PRO‑HG Duo
Weight: approx. 492 g with battery and memory card (body only approx. 433 g)

Measurement conditions according to Sony: CIPA standard, according to Sony (no further measurement conditions given).

Sources (3) · retrieved on 01/10/2026

Sony and Alpha 33 are trademarks or product names of their respective owners. Baxxtar is an independent brand and is not affiliated with Sony – the names only show which camera our products fit.

Battery check for your camera

Which Baxxtar battery fits?

According to Sony, the Sony Alpha 33 uses the NP‑FW50 battery – Baxxtar offers it as a single battery, in a twin pack and in a set with a charger.

Baxxtar NP‑FW50: 1080 mAh · 7.2 V · 7.8 Wh

View matching batteries & sets

Not your camera? Choose another model

Baxxtar NP-FW50 battery, compatible with the Sony Alpha 33

Switching cameras

Your Baxxtar NP‑FW50 also fits …

According to our compatibility list, the Baxxtar NP‑FW50 also fits these 34 cameras. If you switch to one of them, you can keep using your Baxxtar batteries and charger.

Alpha 7
Alpha 7 II
Alpha 7R
Alpha 7R II
Alpha 7S
Alpha 7S II
Alpha 35
Alpha 37
Alpha 55
Alpha 3000
Alpha 5000
Alpha 5100
Alpha 6000
Alpha 6100
Alpha 6300
Alpha 6400
Alpha 6500
NEX‑3
NEX‑3N
NEX‑5
NEX‑5N
NEX‑5R
NEX‑5T
NEX‑6
NEX‑7
NEX‑C3
NEX‑F3
QX1
RX10
RX10 II
RX10 III
RX10 IV
ZV‑E10
Hasselblad Lunar

Battery planner

How many batteries do you need?

Set how much you photograph in a day – the planner works with the figures from Sony for the Alpha 33.

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

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. 270 shots using the viewfinder per battery charge (CIPA figure from Sony for the Alpha 33, a standardised comparison test). According to Sony, the actual runtime depends on the conditions of use; we have not measured these figures with Baxxtar batteries.

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