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

In this review the focus is on whether the Kastar 4-Pack NP-F550/F570 batteries and LTD2 USB dual charger deliver dependable power for users of compatible camcorders and cameras. The bottom line: this kit is for shooters who need a compact, portable way to keep multiple spare batteries charged and ready. The four 2900mAh lithium-ion cells provide long runtime and the LTD2 charger accepts Micro-USB or Type-C input, so it is easy to top up in the field from a power bank or standard 5V USB supply. For anyone who swaps batteries frequently, the kit solves downtime without adding bulk.

Key Features

• Battery Capacity: Each 7.4V 2900mAh lithium-ion battery gives extended runtime that reduces mid-shoot interruptions.
• Dual Charging: The LTD2 charger can charge two batteries at once, letting a shooter replenish more power between takes.
• Interchangeable Plate: The charger plate can be swapped to accept different plate styles for flexible compatibility.
• USB Powered: With Micro-USB and Type-C inputs and a 5V 2-3A 15W input rating, the charger can be powered from a power bank or common USB adapter.
• Intelligent LED Display: LED indicators show charging status and relative battery capacity so users know when cells are ready.
• Portable Design: Lightweight batteries and a compact charger make the kit easy to carry for location work and travel.

Who It's For

This kit is well suited to independent videographers, hobbyists, and prosumers who shoot with cameras that accept NP-F550 or NP-F570 style batteries and need multiple spares for longer sessions. It is also useful for owners of older camcorders listed as compatible who want a modern USB-charge option.

Users who require manufacturer-specific warranty support or the absolute smallest, lightest lithium cells for extreme travel weight limits should consider OEM alternatives or single high-density cells; this kit is aimed at value and convenience rather than premium branded warranty service.

Pros & Cons

Pros

• High 2900mAh capacity per cell offers longer runtime than many generic replacements.
• Dual-slot charger with interchangeable plate and USB input adds real flexibility on the go.
• LED indicators and support for Micro-USB and Type-C make charging straightforward from common sources.

Cons

• The kit is a third-party replacement rather than an OEM battery, so buyers who need manufacturer support may prefer original-brand cells.

Specifications

Our Verdict

The Kastar 4-Pack NP-F550/F570 batteries with the LTD2 dual USB charger are a practical, cost-effective way to keep multiple cameras powered during shoots. They offer high capacity, useful USB charging options and an interchangeable plate for broader compatibility. Photographers and videographers who want reliable spares and flexible charging on the move will find good value here.

Frequently Asked Questions

Can the charger charge two batteries at the same time?
Yes, the LTD2 charger supports charging two batteries simultaneously at up to 800mA each.

Does the kit include a USB cable?
Yes, a Micro-USB cable is included and the charger also accepts Type-C input for modern power sources.

Are these batteries compatible with NP-F550 and NP-F570 cameras?
Yes, the pack is specified for NP-F550/F570 style batteries and lists compatibility with many cameras and camcorders that use that battery format.