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Three lithium-ion batteries and a compact wall charger with foldable plug

Kastar

Kastar BT-02 3-Pack Battery & AC Charger for Zoom Q4 Q4n

SKU CH-RCJ8-MB93P

Three lithium-ion batteries and a foldable AC charger power Zoom Q4 and Q4n recorders

  • TypeBattery & Charger
  • Pack1 Charger + 3 Batteries
  • ChemicalLi-Ion
  • Capacity5.18 Wh
  • Dimensions3*2*3 Inch
  • FeaturesFoldable Flat Plug
  • Three spare batteries keep your Zoom Q4 recording longer
  • 1400 mAh lithium-ion cells deliver 5.18 Wh each
  • Foldable flat-pin charger fits tight outlets and bags
  • 100–240 V input works worldwide without a converter
  • LED shows red while charging and green when full

Ready-to-use power kit

This Kastar bundle supplies three BT-02 replacement batteries and one AC wall charger for Zoom Q4 and Q4n Handy Video Recorders. Each cell delivers 3.7 V and 1400 mAh for a total of 5.18 Wh. The charger accepts 100–240 V input at 50–60 Hz and outputs 4.2 V at 600 mA. A foldable flat plug keeps the unit compact for travel.

Replaces Zoom originals

The pack stands in for the Zoom BT-02 battery (part 247-9036) and the Zoom LBC-1 charger. Swapping to this kit is worth it when the original cells no longer hold a full charge or when a spare charger is needed for a second location. Videographers who record long sessions gain extra run-time without hunting for proprietary replacements.

Steady output for long takes

Under continuous recording the lithium-ion cells maintain a stable voltage until the charger LED shifts from red to green. The 600 mA charge rate refills each battery in a predictable cycle rather than a quick burst. Users who need reliable power for interviews or events will find the performance consistent across all three units.

Highlights

  • Three spare batteries keep your Zoom Q4 recording longer
  • 1400 mAh lithium-ion cells deliver 5.18 Wh each
  • Foldable flat-pin charger fits tight outlets and bags
  • 100–240 V input works worldwide without a converter
  • LED shows red while charging and green when full

Specifications

BrandKastar
ModelSLB-10A
Part NumberNOCAR-3B-SLB10A-J
TypeBattery & Charger
Pack1 Charger + 3 Batteries
ChemicalLi-Ion
Capacity5.18 Wh
Dimensions3*2*3 Inch
FeaturesFoldable Flat Plug

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Questions about this item

What voltage and capacity does each BT-02 replacement battery provide?

Each battery delivers 3.7 V and 1400 mAh, giving 5.18 Wh of energy.

What input range and output does the wall charger accept and supply?

The charger takes AC 100–240 V at 50–60 Hz and outputs DC 4.2 V at 600 mA.

How many charge cycles can the lithium-ion cells typically sustain before capacity drops?

Lithium-ion cells of this type generally last several hundred full cycles before noticeable capacity loss.

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