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Two Kastar BL-5B lithium-ion batteries and a foldable-plug LCD charger

Kastar

Kastar BL-5B 2-Pack Battery & Smart LCD Charger for Tecsun X3 A3 A5

SKU CH-706J-8DBBQ

Two 890 mAh lithium-ion batteries and a foldable-plug LCD charger compatible with Tecsun X3, A3 and A5 radios

  • Total capacity4.26 Wh
  • Pack contents1 Charger + 2 Batteries
  • Battery chemistryLi-Ion
  • Product typeBattery & Charger
  • Product dimensions3 × 2 × 2 in
  • Key featuresFoldable Flat Plug
  • Two 890mAh Li-Ion batteries keep Tecsun radios running longer
  • Smart LCD charger shows red while charging and green when full
  • Foldable flat plug stores neatly in a bag or pocket
  • Universal 100–240V input works worldwide without a converter
  • Charger delivers 4.2V 600mA output for safe, steady charging

Kastar BL-5B Li-Ion Battery Pair

This pack supplies two 3.7 V 890 mAh lithium-ion cells rated at 4.26 Wh each, plus a matching charger. The combination suits owners of Tecsun X3, A3 or A5 radios who need reliable replacements for original BL-5B packs.

Fits Tecsun radios and listed compacts

Users of the named Tecsun models, compatible Vivitar cameras or listed mini keyboards gain a direct power solution. Buyers whose devices require a different voltage, capacity or form factor should look at something else.

100-240 V AC input with foldable plug

The charger accepts worldwide mains voltage and outputs 4.2 V at 600 mA, with red and green LEDs showing charge status. Its foldable flat pins make storage simple for travel or desk use.

How it compares

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

Price $10.99
Cheaper than about 80% of the 5,900 comparable items (median $17.99).

Specifications

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

Other versions of this model

5 more in the same range

Questions about this item

Which Tecsun radios does this BL-5B pack replace the original battery for?

The two 890mAh 3.7V Li-Ion cells are direct replacements for the Tecsun X3, A3 and A5 models listed in the compatibility data.

Can I charge the batteries from a 240 V UK mains socket without an extra adapter?

Yes, the charger accepts AC 100-240 V 50-60 Hz and has a foldable flat plug that fits standard wall outlets.

How do I know each cell has reached full charge on the smart LCD charger?

The charger shows a red LED while charging and switches to a green LED when the cell is at 4.2 V and fully charged.

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