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

Kastar

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

SKU CH-M7D8-MRTHV

Three 3.7 V 890 mAh lithium-ion batteries and a foldable-plug smart LCD charger compatible with ECHO HD eR1 and BLAUPUNKT BT Drive Free models

  • TypeBattery & Charger
  • Pack1 Charger + 3 Batteries
  • ChemicalLi-Ion
  • Capacity4.26 Wh
  • Dimensions3*2*3 Inch
  • FeaturesFoldable Flat Plug
  • Three 890 mAh Li-Ion batteries power compatible devices longer
  • Smart LCD charger shows red while charging and green when full
  • Foldable flat plug stores neatly for travel or home use
  • Charger accepts 100-240 V AC input for worldwide voltage compatibility
  • Replaces BLAUPUNKT TM533443 1S1P and Callstel TM533443 1S1P batteries

Kastar BL-5B 3-Pack Battery Kit

This kit includes three lithium-ion batteries and a smart LCD charger. Each cell delivers 3.7V and 890mAh capacity for 4.26Wh total energy. The charger accepts AC 100-240V input at 50-60Hz and provides DC 4.2V 600mA output. A foldable flat plug makes storage simple for travel or home use.

Replaces original BL-5B cells in compatible devices

The pack suits owners of ECHO HD eR1, BLAUPUNKT BT Drive Free 111, 112, 211, 311, Callstel BFX-300 and Prestigio RoadRunner 505 units. Swap ageing batteries that no longer hold charge or keep spares for extended recording sessions. The charger shows red while charging and green when cells reach full capacity or standby.

Check your device uses the BL-5B form factor

Verify the battery compartment matches the physical size and 3.7V lithium-ion chemistry listed. Confirm your model appears in the compatible device list such as BLAUPUNKT TM533443 1S1P or Callstel TM533443 1S1P references. The charger operates on standard household voltage so no adapter is required for domestic sockets.

Highlights

  • Three 890 mAh Li-Ion batteries power compatible devices longer
  • Smart LCD charger shows red while charging and green when full
  • Foldable flat plug stores neatly for travel or home use
  • Charger accepts 100-240 V AC input for worldwide voltage compatibility
  • Replaces BLAUPUNKT TM533443 1S1P and Callstel TM533443 1S1P batteries

Specifications

BrandKastar
ModelBL-5B
Part NumberMCH-3B-BL5B-1
TypeBattery & Charger
Pack1 Charger + 3 Batteries
ChemicalLi-Ion
Capacity4.26 Wh
Dimensions3*2*3 Inch
FeaturesFoldable Flat Plug

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Questions about this item

What plug style does the charger use for wall outlets?

The charger has a foldable flat plug that folds flat for storage and plugs directly into AC 100~240V 50~60Hz mains.

How do I insert the BL-5B batteries into the charger so they charge correctly?

Align each 3.7V 890mAh Li-Ion cell with the charger contacts, insert fully, then watch the LED: red means charging, green means standby or full.

When should I replace the BL-5B batteries in my ECHO HD eR1 or BLAUPUNKT BT Drive Free 111?

Replace the 890mAh Li-Ion packs when they no longer hold a full 4.26 Wh charge or the charger LED stays red without turning green.

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