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Three rectangular Li-Ion batteries and a compact charger with foldable flat plug

Kastar

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

SKU CH-MHRX-9YPX7

Three lithium-ion batteries and a foldable-plug LCD charger for BL-5B devices

  • 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 BL-5B batteries deliver 890mAh each for extended shooting
  • Smart LCD charger shows red while charging and green when full
  • Foldable flat plug folds away for compact travel storage
  • Universal AC 100-240V input works worldwide without a voltage converter
  • Compatible with Yashica, Vivitar, Rollei, SVP, Minox, Tecsun and Avantree devices

Three batteries and a smart charger

The Kastar BL-5B kit includes three 3.7 V 890 mAh lithium-ion cells and a folding-plug wall charger. Photographers and users of compatible compact cameras, mini keyboards or portable radios can keep spare power ready for extended shooting or recording sessions.

Foldable plug and wide voltage input

The charger accepts AC 100–240 V at 50–60 Hz and delivers DC 4.2 V at 600 mA through a flat foldable pin that stores easily in a bag. Red and green LEDs show charging and full-charge status, so no separate adapter or cable is required for mains power worldwide.

Steady 600 mA charge current

Each cell charges at a constant 600 mA rather than a rapid burst, limiting heat during long overnight cycles. The three-pack rotation means a fresh battery is always available while the depleted pair recover fully, avoiding the capacity drop that fast-charge shortcuts can cause.

How it compares

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

Price $13.99
Cheaper than about 65% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model nameBL-5B
Part numberMCH-3B-BL5B-J
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 can one 890 mAh BL-5B battery run before it needs recharging?

Each pack contains three 3.7 V lithium-ion cells rated at 890 mAh and 4.26 Wh, so runtime depends on the device's current draw.

Does the charger get hot or make noise when charging three batteries back-to-back?

The wall charger draws AC 100-240 V at 50-60 Hz and outputs DC 4.2 V at 600 mA with a simple red-to-green LED indicator; no fan or audible alert is fitted.

What power socket does the foldable-plug charger need?

The charger accepts AC 100-240 V 50-60 Hz directly from a standard wall outlet, so no separate power brick or cable is required.

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