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Two rectangular lithium-ion camera batteries in light plastic finish

Kastar

Kastar BA-2B-GOPRO11 2-pack 1900mAh 7.3Wh camera battery

SKU CH-4KV4-QMB03

Two lithium-ion packs deliver 1900 mAh each at 3.85 V for GoPro HERO 9, 10 and 11 Black cameras

  • TypeBattery
  • Pack2 Batteries
  • ChemicalLi-Ion
  • Capacity7.3 Wh
  • Dimensions3*2*2 Inch
  • FeaturesHigh Capacity and Manufacture Price.
  • Two batteries included for extended shooting sessions
  • 1900mAh 7.3Wh capacity delivers longer run time per charge
  • 85V lithium-ion chemistry with built-in protection against over-charge and over-discharge
  • UL1642 and CE certified cells for safe replacement use
  • Compatible with GoPro HERO 11, HERO 10 and HERO 9 Black action cameras

Compatible cameras

This two-pack replaces the original GoPro batteries for HERO9, HERO10 and HERO11 Black action cameras. It suits owners who want spare cells for extended shooting sessions without relying on a single pack. The lithium-ion chemistry matches the voltage and form factor required by those models. Users who need power for other camera brands will not find a fit here.

Thermals noise and power

Each cell delivers 3.85 V and 1900 mAh for a total of 7.3 Wh of stored energy. Built-in protection circuits guard against over-charge, over-discharge, over-voltage, over-current and over-heating during normal operation. The safety design meets UL1642 and CE standards so the packs run within expected thermal limits. No active cooling or fan noise is involved because these are simple battery cells.

Build and daily use

The pack contains two identical batteries measuring three by two by two inches so they slot directly into the camera battery compartment or compatible chargers. No extra cables or adapters are required for day-to-day swaps. Having a second cell on hand means one can charge while the other records. Buyers who want a multi-bay charger or a higher-capacity single cell are not served by this kit.

Highlights

  • Two batteries included for extended shooting sessions
  • 1900mAh 7.3Wh capacity delivers longer run time per charge
  • 85V lithium-ion chemistry with built-in protection against over-charge and over-discharge
  • UL1642 and CE certified cells for safe replacement use
  • Compatible with GoPro HERO 11, HERO 10 and HERO 9 Black action cameras

Specifications

BrandKastar
ModelHERO 11
Part NumberBA-2B-GOPRO11
TypeBattery
Pack2 Batteries
ChemicalLi-Ion
Capacity7.3 Wh
Dimensions3*2*2 Inch
FeaturesHigh Capacity and Manufacture Price.

Other versions of this model

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Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

How do I install the Kastar BA-2B-GOPRO11 battery and what step do people get wrong?

Open the GoPro battery door, insert the battery with the contacts facing inward until it clicks, then close the latch fully; the common mistake is leaving the latch unlatched, which cuts power when the camera moves.

What maintenance or replacement will the Kastar BA-2B-GOPRO11 pack need later?

The lithium-ion cells have built-in over-charge, over-discharge, over-voltage, over-current and over-heating protection; no user maintenance is required — replace both batteries when run-time drops below your needs.

What limit appears first during sustained use of the Kastar BA-2B-GOPRO11?

Each cell is rated at 1900 mAh and 7.3 Wh at 3.85 V; under continuous recording the capacity limit is reached first, ending the session until the pack is recharged.

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