Kastar Battery 4-Pack Replacement for GoPro HERO11/10/9 - Longer Run

Our review of the Kastar Battery 4-Pack finds it ideal for action camera users who need reliable backup power without breaking the bank. These replacement batteries are built with a high capacity 1900mAh Li-ion cell and a 3.85V rating, and Kastar emphasizes safety with built-in protection against over-charge, over-discharge, over-voltage, over-current, and over-heating. For photographers, vloggers, and adventurers who shoot extended sessions or travel, the primary reason to buy is the combination of noticeably longer run time and multiple cells in a single pack so you can swap batteries instead of hunting for charging outlets.

Key Features

• High Capacity: The 1900mAh cells provide extended recording time compared to typical single-use batteries, letting users capture longer sessions between swaps.
• Battery Type and Voltage: This replacement pack uses lithium-ion chemistry at 3.85V, matching the electrical specification expected by compatible GoPro models.
• Safety Protections: Built-in over-charge, over-discharge, over-voltage, over-current, and over-heating protection circuits improve reliability during charging and use.
• Compatibility: Specifically designed to work with GoPro HERO11, HERO10, and HERO9 Black models and associated battery model numbers listed by Kastar.
• Value Pack: The 4-pack format saves time and ensures multiple spare batteries are available for extended shoots or travel.

Who It's For

This 4-pack is best for shooters who regularly film long sessions, outdoor athletes, or content creators who need multiple spare batteries on location. The pack removes the hassle of frequent recharging and is useful for travel where access to a power source is limited.

Users who prefer original manufacturer batteries for warranty or maximum guaranteed compatibility may want to look elsewhere, and those who need integrated charging cases or USB-C fast-charge features should verify accessories separately since this product focuses on replacement cells.

Pros & Cons

Pros

• Higher 1900mAh capacity provides longer run time per charge.
• Four batteries in one package reduce downtime and the need to recharge between shoots.
• Safety circuitry meeting UL1642 and CE standards helps protect the camera and battery.

Cons

• Not an original brand battery, so warranty or manufacturer support may differ from factory units.
• Package contains batteries only; a charger or case is not included, so a compatible charger is required.

Specifications

Our Verdict

For enthusiasts and creators who need dependable spare power for GoPro HERO11, HERO10, and HERO9 cameras, this Kastar 4-pack offers good value through higher capacity cells and safety protections. It is a practical choice when extended run time and multiple backups matter more than factory branding, making it a smart, cost-effective accessory for longer shoots and travel.

Frequently Asked Questions

Are these batteries compatible with GoPro HERO11, HERO10, and HERO9?
Yes, the pack is listed as compatible with GoPro HERO11 Black, HERO10 Black Edition, and HERO9 Black Edition and the associated battery model numbers named by the manufacturer.

Does the pack include a charger?
No, the package includes four replacement batteries only; a separate compatible charger or the camera charger is required for charging.

Are the batteries safe to use in my camera?
Yes, Kastar states the lithium-ion cells meet UL1642 and CE standards and include built-in protections for over-charge, over-discharge, over-voltage, over-current, and over-heating.