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Three Kastar BL-5B lithium-ion batteries and a compact wall charger with foldable flat plug and LCD status lights

Kastar

Kastar BL-5B 3-Pack Battery & Smart LCD Charger

SKU CH-7ENR-W15W9

Three 3.7 V 890 mAh lithium-ion batteries and a foldable-plug AC charger with red-green LED status indicators

  • Total capacity4.26 Wh
  • Pack contents1 Charger + 3 Batteries
  • Battery chemistryLi-Ion
  • Product typeBattery & Charger
  • Product dimensions3 × 2 × 3 in
  • Key featuresFoldable Flat Plug
  • Three 890 mAh lithium-ion batteries deliver reliable power
  • Smart LCD charger shows red while charging and green when full
  • Foldable flat plug makes the charger easy to store and carry
  • Universal 100–240 V input lets you charge anywhere in the world
  • Compatible with a wide range of cameras, keyboards and audio devices

Three-battery pack with charger

This set supplies three lithium-ion BL-5B cells rated at 890 mAh each alongside a compact AC wall charger. It is aimed at owners of compatible mini cameras, wireless keyboards and portable media players who need spare power on the go.

890 mAh capacity per cell

Each battery stores 4.26 Wh at 3.7 V, matching the original BL-5B specification. The charger accepts 100–240 V AC input and delivers 4.2 V at 600 mA, with a red LED while charging and a green LED when the cell is full.

Foldable flat plug for travel

The charger’s pins fold flat so it slips into a bag without snagging. It powers the three included cells sequentially, freeing the user from hunting for proprietary cables and keeping keyboards, compact cameras or MP3 recorders running through a day of use.

How it compares

Measured against everything we stock in Camera Batteries, Grips & Chargers, at today’s prices. Recalculated every night.

Price $15.99
Cheaper than about 57% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model nameBL-5B
Part numberMCH-3B-BL5B-D
Total capacity4.26 Wh
Product typeBattery & Charger
Power
Battery chemistryLi-Ion
Size & build
Product dimensions3 × 2 × 3 in
In the box
Pack contents1 Charger + 3 Batteries

Other versions of this model

5 more in the same range

Questions about this item

How long will an 890 mAh BL-5B battery run my VJIANGER 4K 48MP Mini Digital Compact Camera before needing a recharge?

Run-time depends on the camera's power draw; the battery stores 4.26 Wh at 3.7 V, so divide that by the camera's average wattage to estimate hours.

What does the charger's 4.2 V 600 mA output mean for charging speed and safety?

It delivers up to 600 mA at the lithium-ion termination voltage of 4.2 V, so each 890 mAh cell takes roughly 90 minutes to reach full charge while the red LED is lit.

Will the foldable flat plug fit a standard UK wall socket without an adapter?

The plug is designed for North American flat-pin outlets; a UK socket requires a separate travel adapter.

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