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Watson D-LI50 Lithium-Ion Battery Pack (7.4V, 1500mAh)

BH #WADLI50 • MFR #B-3701
5 reviews
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Watson D-LI50 Lithium-Ion Battery Pack (7.4V, 1500mAh)
Key Features
  • Replacement for Minolta NP-400, Pentax D-Li50, Samsung SLB-1674, and Sigma BP-21 Batteries
The Watson D-LI50 Lithium-Ion Battery Pack works with the same cameras as the Minolta NP-400, Pentax D-Li50, Samsung SLB-1674, and Sigma BP-21. This replacement battery pack features a capacity of 1500mAh, 7.4V of output power, and 11.1 watt hours. Small and lightweight, lithium-ion batteries can be charged or discharged at any time without developing memory effects.
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Watson D-LI50 Overview

The Watson D-LI50 Lithium-Ion Battery Pack works with the same cameras as the Minolta NP-400, Pentax D-Li50, Samsung SLB-1674, and Sigma BP-21. This replacement battery pack features a capacity of 1500mAh, 7.4V of output power, and 11.1 watt hours. Small and lightweight, lithium-ion batteries can be charged or discharged at any time without developing memory effects.

Compatible Cameras
Minolta
  • D-IMAGE A1

Pentax
  • K10D
  • K20D
  • Optio RZ10
  • Optio RZ18

Samsung
  • GX-10
  • GX-20

Sigma
  • SD1
  • SD14
  • SD15
  • SD1m
UPC: 847628543799

Watson D-LI50 Specs

Battery
Battery Type
1x Pentax D-LI50
Battery Capacity
1500 mAh / 11.1 Wh
Output Voltage
7.4 VDC
Battery Chemistry
Lithium-Ion
Accessory Mounting Thread
No
Dimensions
2.18 x 1.54 x 0.85" / 5.5 x 3.9 x 2.2 cm
Weight
2.8 oz / 79.4 g
Packaging Info
Package Weight
0.225 lb
Box Dimensions (LxWxH)
5.25 x 2.95 x 1.4"

Watson D-LI50 Reviews

Saved my Pentax K20D

By David
Rated 5 out of 5
Date: 2025-02-09

My Pentax K20D recently went swimming with me when I fell into a stream. When the camera was checked it still came on, but the SD card card was ruined. After a few weeks when turning the camera on, neither the top screen or the back screen would turn on, so I hoped that the battery needed charging. I put it on charge and when it was fully charged I put it in the camera and turned it on. The only difference was the top screen came on for a split second displaying the battery level and then went blank. I took a chance and ordered two Watson D-L150 batteries, hoping the camera wasn't ruined from being submerged in the water. When they arrived they were totally discharged, so I impatiently waited while I charged the first one. When it was fully charged I inserted it into the camera and turned it on. Both displays lit up with the top display indicating a full charge. I was able to scroll through the rear screen and perform multiple functions, including setting the date and time. My K20D is still functioning, which makes me happy because I wasn't going to be able to afford a new camera, which is why I have an old camera like the K20D.

Perfect

By Gail
Rated 5 out of 5
Date: 2018-03-25

Just what I needed!

See any errors on this page?

Hello - Can this battery be charged with my ...

Hello - Can this battery be charged with my original Pentax K20D charger? Or do I need a Watson charger?
Asked by: Jennifer
Yes, the Watson D-LI50 Lithium-Ion Battery Pack (7.4V, 1500mAh) can be charged in the Pentax charger.
Answered by: Dan W
Date published: 2025-05-06

Where are the cells made for Watson batteries?

Where are the cells made for Watson batteries?
Asked by: Craig
The Watson D-LI50 Lithium-Ion Battery Pack (7.4V, 1500mAh) is manufactured in China.
Answered by: Lawrence C
Date published: 2023-05-17
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