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Three rectangular camera batteries with matte finish, labelled 1800mAh 3.85V 6.9Wh

Kastar

Kastar IS360X3B 3-pack Li-Ion 1800mAh 3.85V 6.9Wh camera battery

SKU CH-8DZR-QGRH0

Three 1800 mAh lithium-ion packs deliver 6.9 Wh each for the Insta360 X3 action camera

  • TypeBattery
  • Pack3 Batteries
  • ChemicalLi-Ion
  • Capacity6.9 Wh
  • Dimensions3*2*3 Inch
  • FeaturesHigh Capacity and Manufacture Price.
  • Three-pack delivers 1800 mAh each for extended shooting
  • 9 Wh lithium-ion cells meet UL1642 and CE safety standards
  • Built-in protection guards against over-charge, over-discharge and over-heating
  • Fits Insta360 X3 battery compartment measuring 2.17 x .51 x 1.65 inches
  • Not compatible with Insta360 ONE X2 which uses 2.36 x .55 x 1.57 inch cells

Three-Pack Replacement for Insta360 X3

This three-pack supplies three Kastar lithium-ion batteries built to fit the Insta360 X3 action camera. Each cell delivers 1800mAh at 3.85V for a total of 6.9Wh, giving extended shooting time for 72MP stills and 5.7K 360° video. The pack is designed specifically for the X3 and will not fit the ONE X2 model.

Thermals and Protection Circuit

Built-in safeguards cover over-charge, over-discharge, over-voltage, over-current and over-heating, and the cells meet UL1642 and CE safety standards. In normal use the protection circuit keeps temperatures stable without any audible noise, and the 3.85V nominal voltage ensures consistent power delivery throughout each cycle.

Sustained Load Behaviour

During long 360° recording sessions the high-capacity chemistry maintains steady output without sudden voltage sag, letting the camera run until the protection circuit triggers a clean shutdown. The shorter 2.17" by .51" by 1.65" form factor matches the X3 battery compartment exactly, so contact pressure stays reliable even under continuous vibration.

Highlights

  • Three-pack delivers 1800 mAh each for extended shooting
  • 9 Wh lithium-ion cells meet UL1642 and CE safety standards
  • Built-in protection guards against over-charge, over-discharge and over-heating
  • Fits Insta360 X3 battery compartment measuring 2.17 x .51 x 1.65 inches
  • Not compatible with Insta360 ONE X2 which uses 2.36 x .55 x 1.57 inch cells

Specifications

BrandKastar
ModelIS360X3B
Part NumberBA-3B-IS360X3B
TypeBattery
Pack3 Batteries
ChemicalLi-Ion
Capacity6.9 Wh
Dimensions3*2*3 Inch
FeaturesHigh Capacity and Manufacture Price.

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Questions about this item

How do I install the Kastar IS360X3B battery into my Insta360 X3, and what is the common mistake?

Insert the battery with the contacts facing the camera interior until it clicks. The common mistake is confusing it with the ONE X2 battery, which is 2.36" long instead of the required 2.17" length.

What maintenance or replacement will these 1800mAh Li-Ion cells need over time?

Lithium-ion cells gradually lose capacity after hundreds of charge cycles. Replace the pack when run-time drops below your needs; the built-in protection circuit prevents over-charge and over-discharge damage.

What limit appears first during sustained 5.7K 360° recording with these 6.9Wh batteries?

The 6.9Wh capacity typically limits continuous 5.7K recording to roughly one hour before the voltage drops and the camera shuts down, especially in warm conditions.

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