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Two Kastar lithium-ion batteries and a compact USB charger with LCD screen

Kastar

Kastar BT-02 2-Pack Battery & LTD2 USB Charger for Zoom Q4 Q4n

SKU CH-88KE-EN0M9

Two lithium-ion batteries and a dual USB charger with LCD status for Zoom Q4 and Q4n recorders

  • TypeBattery & Charger
  • Pack1 Charger + 2 Batteries
  • ChemicalLi-Ion
  • Capacity5.18 Wh
  • Dimensions5*3*2 Inch
  • FeaturesLCD USB Dual charger, can charge 2 batteries at the same tim
  • Two 1400 mAh Li-Ion batteries power Zoom Q4 and Q4n recorders
  • LCD USB dual charger refills both cells simultaneously from Micro-USB or Type-C
  • Intelligent LED display shows real-time charging status and remaining capacity
  • Charger accepts 5 V 2–3 A input and delivers 4.2 V 800 mA per slot
  • Interchangeable plate design supports Samsung SLB-10A, JVC BN-VH105 and Zoom BT-02 cells

Replacement power for Zoom Q4 and Q4n

This set supplies two lithium-ion batteries and a dual-slot USB charger that replaces the Zoom BT-02 cell and LBC-1 charger. Each battery delivers 3.7 V and 1400 mAh for 5.18 Wh of capacity. The kit suits videographers who need spare power for long shoots with the listed Zoom recorders.

Dual-bay charging with USB flexibility

The LTD2 charger powers both batteries simultaneously from a 5 V 2–3 A source via Micro-USB or USB-C input. An LCD panel shows charge status and remaining capacity for each bay. Output is 4.2 V at 800 mA per slot whether one or two cells are inserted.

Not for cameras outside the listed models

Buyers whose cameras use a different battery form factor or voltage cannot use this pack. The charger plates are swappable but only the models named in the compatibility list are supported.

Highlights

  • Two 1400 mAh Li-Ion batteries power Zoom Q4 and Q4n recorders
  • LCD USB dual charger refills both cells simultaneously from Micro-USB or Type-C
  • Intelligent LED display shows real-time charging status and remaining capacity
  • Charger accepts 5 V 2–3 A input and delivers 4.2 V 800 mA per slot
  • Interchangeable plate design supports Samsung SLB-10A, JVC BN-VH105 and Zoom BT-02 cells

Specifications

BrandKastar
ModelSLB-10A
Part NumberCH-LTD2-2B-SLB10A-J
TypeBattery & Charger
Pack1 Charger + 2 Batteries
ChemicalLi-Ion
Capacity5.18 Wh
Dimensions5*3*2 Inch
FeaturesLCD USB Dual charger, can charge 2 batteries at the same time

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Questions about this item

Does the LTD2 charger generate noticeable heat or fan noise when both batteries charge for hours?

The charger has no fan and runs silently; its 5 V 2-3 A input and 4.2 V 800 mA per-slot output produce only mild warmth during extended dual-battery sessions.

What power source must I already have to run the LTD2 charger?

Any USB port or adapter that can deliver 5 V at 2-3 A, such as a standard 15 W phone charger or a powered USB hub with Micro-USB or Type-C output.

Will the SLB-10A batteries communicate correctly with my Zoom Q4n so the recorder shows accurate remaining capacity?

Yes, the 3.7 V 1400 mAh cells are direct replacements for the Zoom BT-02 and work with the Q4n fuel gauge without modification.

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