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Four lithium-ion batteries and a foldable-plug AC wall charger

Kastar

Kastar 4-Pack SLB-10A Battery & AC Charger for Zoom Q4/Q4n

SKU CH-HNMW-Q31HG

Four lithium-ion batteries and a foldable-plug AC charger for Zoom Q4 and Q4n recorders

  • Total capacity5.18 Wh
  • Pack contents1 Charger + 4 Batteries
  • Battery chemistryLi-Ion
  • Product typeBattery & Charger
  • Product dimensions3 × 2 × 3 in
  • Key featuresFoldable Flat Plug
  • Four lithium-ion batteries deliver 5.18 Wh each for extended recording
  • AC wall charger works worldwide from 100 to 240 V 50 to 60 Hz
  • Foldable flat plug keeps the charger compact in any bag
  • LED shows red while charging and green when the battery is full
  • Replaces Zoom BT-02 and 247-9036 batteries for Q4 and Q4n recorders

Kastar SLB-10A 4-Battery Kit

This kit supplies four lithium-ion batteries rated at 3.7V and 1400mAh each, plus a matching AC wall charger. It is built for owners of the Zoom Q4 or Q4n Handy Video Recorder who need spare power for longer sessions. The bundle replaces the original Zoom BT-02 cells and LBC-1 charger. Videographers recording extended events or field interviews will appreciate the extra capacity.

Check recorder model and charger input

Verify that your recorder is a Zoom Q4 or Q4n, as the batteries are direct replacements for the BT-02 and 247-9036 packs. The included charger accepts AC 100-240V at 50-60Hz, so it works on mains voltages worldwide without a separate transformer. Its foldable flat plug stores neatly in a gear bag. No other camera models are supported by this pack.

Steady output during long recordings

Each cell delivers 5.18 Wh, providing consistent voltage through a full take rather than a quick burst. The charger outputs DC 4.2V at 600mA, topping up depleted packs at a measured pace. An LED shows red while charging and green once the cycle finishes. The four-pack lets you rotate cells so the recorder stays powered without waiting for a single battery to recharge.

How it compares

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

Price $14.99
Cheaper than about 60% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model nameSLB-10A
Part numberNOCAR-4B-SLB10A-J
Total capacity5.18 Wh
Product typeBattery & Charger
Power
Battery chemistryLi-Ion
Size & build
Product dimensions3 × 2 × 3 in
In the box
Pack contents1 Charger + 4 Batteries

Other versions of this model

5 more in the same range

Questions about this item

What comes in the 4-pack and is a power cable needed?

The pack contains one AC wall charger with a foldable flat plug and four SLB-10A lithium-ion batteries. The charger plugs directly into a wall outlet so no separate cable is required.

Should I choose this 4-pack or a smaller bundle?

This bundle provides four 1400 mAh batteries and one charger, giving multiple full charges for a Zoom Q4 or Q4n without waiting for a single cell to recharge.

How long will a 5.18 Wh battery run my Q4n?

Each 3.7 V 1400 mAh cell delivers 5.18 Wh; actual recording time depends on the recorder's power draw, but the charger restores a depleted battery at 4.2 V 600 mA.

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