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NP-BJ1 J-type Rechargeable Battery Pack
$39.99
$39.99
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- Lithium ion J-type rechargeable battery
- Capacity: Approx. 3.7V/2.6W(700mAh)
- Dimensions (W x H x D): Approx. 31.4 x 6 x 39.5mm (1 1/4 x 1/4 x 1 9/16inches)
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- This product is also known as NPBJ1
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What cameras are compatible with the Sony NP-BJ1 battery pack?
The NP-BJ1 J-type battery is designed primarily for Sony RX0 and RX0 II ultra-compact cameras, along with certain Cyber-shot compact models such as the DSC-RX0M2.
What is the capacity and voltage of the NP-BJ1 battery?
The NP-BJ1 has a capacity of approximately 700mAh with about 2.6Wh of power and a nominal output voltage of 3.7V.
How long does the NP-BJ1 battery last on a single charge?
In a compatible camera like the RX0, one NP-BJ1 battery provides up to about 240 still images or roughly 35–60 minutes of video recording, depending on settings and shooting conditions.
How long does it take to fully charge the NP-BJ1 battery?
A full charge takes about 120 minutes when using a compatible 1.5A micro USB AC adapter under recommended temperature conditions.
What are the dimensions and weight of the NP-BJ1 battery?
The NP-BJ1 measures approximately 31.4 x 6 x 39.5mm (1 1/4 x 1/4 x 1 9/16 inches) and weighs about 14g (0.5 oz), making it slim and easy to carry as a spare.
Is the NP-BJ1 rechargeable, and what battery chemistry does it use?
Yes, the NP-BJ1 is a rechargeable lithium-ion J-type battery pack designed for repeated charging and discharging in compatible Sony cameras.
Can the NP-BJ1 be charged inside the camera?
Many RX0-series cameras support in-camera USB charging, allowing the NP-BJ1 to be recharged inside the camera via USB. It is also compatible with Sony's ACC-TRDCJ USB travel charger kit for charging via USB power sources.
What is the recommended temperature range for using the NP-BJ1 battery?
Sony specifies a battery operating temperature range of approximately 0°C to 40°C (32°F to 104°F) for best performance and battery health.
How much does the Sony NP-BJ1 J-type Rechargeable Battery Pack cost?
MSRP is listed as $39.99. Given that, these models can go on sale from time to time, and there are several other opportunities to save on price like through their group discounts for education, healthcare and military/veterans (ID.me & Unidays) along with their free loyalty program that gives up to 5% back in points.
*FAQ generated on 07/23/2026. Financing, pricing and promotions may no longer apply.