Kastar NP-F960 / NP-F970 Battery 4-Pack Replacement - Long Run Time

In this review the Kastar NP-F960 / NP-F970 4-Pack is evaluated as a straightforward, high-capacity replacement battery option for on-camera field monitors. It is aimed at shooters and video technicians who need extended run time without swapping cells constantly; the single biggest reason to buy is the high 8700mAh capacity per cell that extends monitor operation significantly compared with standard cells. The pack is presented as a budget-friendly multi-battery kit that pairs with common monitors such as Blackmagic Video Assist and several SmallHD and Portkeys models.

Key Features

• High Capacity: Each battery uses a super high capacity 8700mAh cell to give much longer run time for monitor use compared with many OEM replacements.
• Compatibility: This 4-pack is designed to work with a range of on-camera monitors including Blackmagic Video Assist 5'in and 7'in models and several SmallHD and Portkeys monitors.
• Safety Protections: Built-in protection circuits guard against over-charge, over-discharge, over-voltage, over-current, and over-heating to reduce risk during field use.
• Trusted Chemistry: The lithium-ion cell design conforms to UL1642 and CE safety standards, providing reassurance about the battery construction and materials.
• Cost Efficiency: Buying a 4-pack saves time and expense versus frequent single replacements, making it convenient for longer shoots and multi-day projects.

Who It's For

The kit is best for independent filmmakers, run-and-gun shooters, and camera assistants who use on-camera field monitors such as Blackmagic Video Assist 5'in and 7'in models, SmallHD 702/703 series, and compatible Portkeys displays. Users who value longer continuous monitor operation and want multiple spare batteries ready in a kit will appreciate the 4-pack format.

It is less suitable for users who require official OEM batteries for warranty reasons or for those who need batteries with integrated mounting accessories or chargers included, since this listing supplies the battery pack only.

Pros & Cons

Pros

• High 8700mAh capacity per battery provides noticeably longer runtime for monitors during shoots.
• Comprehensive safety features including over-charge and over-heat protection help protect equipment and battery life.
• Broad compatibility with popular on-camera monitors makes this a versatile spare battery option.

Cons

• No charger or carrying case included, so users must provide compatible charging and storage solutions.

Specifications

Battery Type	Lithium-ion
Nominal Voltage	7.4V
Capacity	8700mAh
Pack Quantity	4 batteries
Safety Standards	UL1642, CE
Protection Circuit	Over-charge, over-discharge, over-voltage, over-current, over-heating

Our Verdict

The Kastar NP-F960 / NP-F970 4-Pack is a practical value option for video professionals who need long-lasting spare power for on-camera monitors. With high 8700mAh cells and multiple safety protections, it delivers reliable extended runtime for Blackmagic Video Assist, SmallHD, and Portkeys monitors, though buyers should plan for separate charging accessories. For those who prioritize runtime and a multi-battery kit, it is a cost-effective choice.

Frequently Asked Questions

Are these batteries compatible with Blackmagic Video Assist 7'in monitors?
Yes, the pack is specified as compatible with Blackmagic Video Assist 5'in and 7'in monitor models when using NP-F960 / NP-F970 style batteries.

Does the pack include a charger or case?
No, the package includes four batteries only; a compatible charger and storage solution must be purchased separately.

Are these cells safe for travel and field use?
The batteries include protection circuitry and meet UL1642 and CE standards, which supports safe use, but always follow airline and local regulations for transporting lithium-ion batteries.