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Watson NP-BX1 Lithium-Ion Battery Pack (3.6V, 1150mAh)

BH #WANPBX1 • MFR #B-4234
90 reviews
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Watson NP-BX1 Lithium-Ion Battery Pack (3.6V, 1150mAh)
Key Features
  • Replacement for Sony NP-BX1
The Watson NP-BX1 Lithium-Ion Battery Pack works with the same cameras as the Sony NP-BX1. This replacement battery pack features a capacity of 1150mAh, 3.6V of output power and 4.14 watt-hours. Small and lightweight, lithium-ion batteries can be charged or discharged at any time without developing memory effect.
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Kit Configuration
Battery Only
with Charger
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Watson NP-BX1 Overview

The Watson NP-BX1 Lithium-Ion Battery Pack works with the same cameras as the Sony NP-BX1. This replacement battery pack features a capacity of 1150mAh, 3.6V of output power and 4.14 watt-hours. Small and lightweight, lithium-ion batteries can be charged or discharged at any time without developing memory effect.

Compatible Cameras
    Sony:
  • DSC-RX100 II
  • DSC-RX1R
  • DSC-HX50V
  • DSC-HX300
  • DSC-WX300
  • DSC-RX1
  • DSC-RX100
  • HDR-AS10
  • HDR-AS15
UPC: 847628563803

Watson NP-BX1 Specs

Battery
Battery Type
1x Sony NP-BX1
Battery Capacity
1150 mAh / 4.14 Wh
Output Voltage
3.6 VDC
Battery Chemistry
Lithium-Ion
Accessory Mounting Thread
No
Dimensions
1.7 x 1.7 x 0.4" / 4.3 x 4.3 x 1 cm
Weight
0.8 oz / 23 g
Packaging Info
Package Weight
0.135 lb
Box Dimensions (LxWxH)
6.4 x 3.6 x 1"

Watson NP-BX1 Reviews

Works Well. Good value

By Michael
Rated 5 out of 5
Date: 2026-07-01

I ordered these Watson NP-BX1 batteries after ordering the Watson charger for the orignal sony NP-BX1 batteries because I realized I could get two Watsons for the cost of one Sony. Having recently purchased the Sony RX100Vii camera, I noticed how the battery life was no where near as long as I was used to on my A1 or A9ii, so I decided I need a few extra batteries for a full day of travel shooting.

Excellent battery pack

By Gage
Rated 5 out of 5
Date: 2025-08-01

This battery is holding it's charge very well and seems to be top quality

See any errors on this page?

question

will it work with hdr-cx-440 ?
Asked by: thomas h.
I don't know. I use it for a Sony RX 100
Answered by: Michael R.
Date published: 2018-08-28

Can this work on Sony rx100vii

Can this work on Sony rx100vii
Asked by: Emmanuel
The Watson NP-BX1 Lithium-Ion Battery Pack (3.6V, 1150mAh) is compatible with the Sony RX100 VII Digital Camera (B&H # SODSCRX1007).
Answered by: Marvin C
Date published: 2025-09-26

Will it work in my RX100 V1?

Will it work in my RX100 V1?
Asked by: Charles
I purchased the Watson NP-BX1 battery for my Sony RX100 VI and it works just as well as the Sony batteries. The camera is hard on batteries and I usually carry 3, particularly if I plan to use my camera all day. The only issue I've had with the Watson battery is that I find it easy to place in my charger incorrectly. Fortunately, the charger then blinks rather than going into charging mode.
Answered by: Anonymous
Date published: 2019-04-19

question

How long does it take to charge the sonyNP-BX1 lithium-ion rechargeable battery to full on this charger?
Asked by: Andrea H.
The charger depending on how depleted the battery is will charge the battery in approximately 2-6 hours.
Answered by: Robert K.
Date published: 2018-08-25

does charger have a light on it to let u know ...

does charger have a light on it to let u know when charging is finished?
Asked by: Ken
Yes, a light is red while charging, changing to green when charged. The charger works well with either Watson or Sony batteries. However, the Watson B-4234 batteries are slightly different in size from the Sony NP-BX1 they are supposed to replace. Sometimes I can wiggle them until they latch in my Sony RX100-VI, but today, I can't get them to stay in after several tries. I recommend paying the more exorbitant price for the Sony batteries.
Answered by: Arthur
Date published: 2020-10-22

question

Can I charge this battery with Sony BCTRX Battery Charger or Sony Travel Charger? Thank you.
Asked by: michael
I am having trouble charging this battery with a Sony charger.
Answered by: hal
Date published: 2019-07-01

question

Can I use this in my Sony Handycam?
Asked by: Tiffany D.
I am not exactly sure, but if it fits into the battery space and has the same voltage I would say yes
Answered by: Ricardo M.
Date published: 2018-08-28

question

Will these works with the Sony RX100V
Asked by: Dj G.
yes
Answered by: Sarah C.
Date published: 2018-08-28
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