Kastar 4-Pack NP-F550/NP-F570 Batteries and LTD2 USB Charger

In this review the Kastar 4-Pack NP-F550/NP-F570 battery kit is assessed for photographers and videographers who need extended run time for GVM bi-color and RGB LED lights. The bottom line: this pack is for users who want a portable, affordable way to keep multiple GVM fixtures running without swapping single cells constantly. The biggest reason to buy is the combination of four 2900mAh lithium-ion batteries and an intelligent dual USB charger that can top two batteries at once, which simplifies long shoots and on-location work.

Key Features

• Battery Capacity: Each 7.4V battery offers 2900mAh of capacity to extend run time on compatible GVM video lights during longer shoots.
• Dual Charging: The LTD2 USB charger can charge two batteries simultaneously, cutting downtime when multiple cells need replenishing.
• Multiple Input Options: Micro-USB and Type-C inputs plus a provided Micro-USB cable mean the charger can run from common power banks and chargers for field flexibility.
• Intelligent LED Display: The charger shows charging status and approximate battery capacity so users can plan which cells to use next.
• Interchangeable Plate: The charger allows changing the plate to support different battery plates, adding convenience for mixed kit setups.

Who It's For

This kit is tailored to content creators, event videographers, and photographers who use GVM LED fixtures and need a compact set of spares to rotate through a shoot. The four-battery pack suits back-to-back shoots or multi-light setups where swapping batteries quickly reduces interruptions.

Those who should look elsewhere include users needing OEM batteries with manufacturer warranty assurances or professionals requiring highest-end, camera-brand specific power solutions; this kit is a third-party, value-oriented option rather than a factory replacement in some systems.

Pros & Cons

Pros

• Four high-capacity 2900mAh lithium-ion cells give ample extra run time for LED lights.
• Charger can top two batteries at once and accepts both Micro-USB and Type-C inputs for field charging.
• Smart LED indicators make it easy to monitor charging status and battery capacity at a glance.

Cons

• The pack is a third-party solution and may not carry the same warranty terms as original equipment brand batteries.

Specifications

Our Verdict

The Kastar 4-pack with LTD2 USB charger is a practical, cost-effective power solution for creators using GVM bi-color and RGB video lights. It delivers dependable 2900mAh cells and flexible USB charging that reduce downtime on location, making it good value for anyone needing multiple spare batteries without premium OEM pricing.

Frequently Asked Questions

Are these batteries compatible with GVM lights?
Yes, the pack is compatible with a wide range of GVM LED and bi-color video lights listed by the manufacturer, including many on-camera and panel models.

Can the charger charge two batteries at the same time?
Yes, the LTD2 USB charger can charge two batteries simultaneously with a combined output suitable for both slots.

Does the kit include charging cables?
The kit includes a Micro-USB cable and supports Type-C input so users can supply a Type-C cable if needed for that input.