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Rectangular lithium-ion camera battery, matte finish, branded Kastar

Kastar

Kastar IS360X3B 1800mAh 3.85V Li-Ion camera battery

SKU CH-00FP-BQP66

Replacement Li-Ion battery for Insta360 X3 action camera, 1800 mAh 3.85 V with UL1642 and CE safety protection

  • Total capacity6.9 Wh
  • Pack contents1 Battery
  • Battery chemistryLi-Ion
  • Product typeBattery
  • Product dimensions3 × 2 × 1 in
  • Key featuresHigh Capacity and Manufacture Price.
  • High capacity 1800mAh 3.85V Li-Ion powers camera longer
  • 9 Wh energy rating supports extended shooting sessions
  • UL1642 and CE certified cells with multi-protection circuit
  • Direct replacement for Insta360 X3 battery 2.17 X .51 X 1.65 inches
  • Single pack delivers reliable performance for 72MP 5.7K 360 VR AI action camera

Replacement for Insta360 X3

The Kastar IS360X3B is a 1800mAh 3.85V Li-Ion battery built as a direct replacement for the Insta360 X3 action camera. It delivers 6.9 Wh of energy in a single-cell pack. Photographers and VR creators who need a spare or a fresh primary cell for extended 5.7K 360° shoots will find it fits the X3 battery compartment.

Safety-certified cell with protection circuit

The lithium-ion cell meets UL1642 and CE standards and includes built-in safeguards against over-charge, over-discharge, over-voltage, over-current and over-heating. Its physical footprint of 2.17 by .51 by 1.65 inches matches the X3 bay exactly, so the battery seats securely without forcing the door or contacts.

Not compatible with Insta360 ONE X2

The shorter X3 form factor means this pack will not fit the ONE X2, which uses a longer 2.36 by .55 by 1.57 inch cell. Users owning both camera generations must keep separate spares. The 6.9 Wh capacity also falls under typical airline carry-on limits, simplifying travel with multiple units.

How it compares

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

Price $13.99
Cheaper than about 65% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model nameIS360 × 3B
Part numberBA-1B-IS360 × 3B
Total capacity6.9 Wh
Product typeBattery
Power
Battery chemistryLi-Ion
Size & build
Product dimensions3 × 2 × 1 in
In the box
Pack contents1 Battery

Other versions of this model

5 more in the same range

Questions about this item

What voltage does the 1800mAh cell deliver to the Insta360 X3?

The cell is rated at 3.85V and supplies 6.9Wh of energy to the camera.

Will the 2.17" x 0.51" x 1.65" pack fit the Insta360 X3 battery compartment?

Yes, those dimensions match the X3 battery bay; the longer 2.36" x 0.55" x 1.57" pack for the ONE X2 will not fit.

How do I insert the pack so the protection circuit engages properly?

Align the contacts with the camera terminals and slide the pack in until it clicks; forcing it backwards can damage the connector pins.

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