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

In this review the Kastar 4-Pack NP-F550/F570 Battery and LTD2 USB Charger is evaluated for videographers and camcorder owners who need extended runtime without carrying multiple proprietary chargers. The bottom line: it is for users who want a compact, modern charging solution and extra high-capacity batteries to keep cameras like HVR and HXR series running through long shoots. The reviewer found the 2900mAh lithium-ion cells and the dual USB charger with Micro-USB and Type-C inputs deliver convenient, portable power and clear charging status thanks to the intelligent LED indicators.

Key Features

• High capacity battery: The 2900mAh, 7.4V lithium-ion cells provide noticeably longer runtime than older low-capacity replacements, reducing battery swaps on location.
• Dual battery charging: The LTD2 charger can charge two batteries simultaneously, saving time when multiple spares are needed between takes.
• USB input options: Micro-USB and Type-C inputs plus a provided Micro-USB cable mean the charger can run from a power bank or laptop for field charging.
• Intelligent LED display: The charger shows charging status and battery capacity with lights, making it easy to see when batteries are ready without guessing.
• Interchangeable plate: The replaceable plate lets the charger accommodate different compatible battery plates, adding flexibility for mixed-use camera kits.

Who It's For

This kit suits independent filmmakers, ENG operators and event videographers using Sony NP-F series batteries in HVR and HXR camcorders who need extra run time and a compact charging option that works from USB power sources. The combination of four high-capacity batteries and a dual USB charger reduces downtime for long shoots and travel setups.

It may not be ideal for users who require ultra-rapid industrial charging speeds or those who need OEM-branded batteries for manufacturer warranty reasons; such users should consider manufacturer-supplied batteries and chargers instead.

Pros & Cons

Pros

• High 2900mAh capacity extends runtime compared with many replacements.
• Dual charging and interchangeable plate make the charger versatile for multi-battery workflows.
• USB input options and included cable enable convenient field charging from power banks.
• Intelligent LED indicators provide clear charging status at a glance.

Cons

• Charger output (8.4V 800mA per bay) is moderate, so full charge times are not the fastest available.
• The kit uses a third-party brand rather than an OEM charger plate, which some users prefer for warranty alignment.

Specifications

Our Verdict

The Kastar 4-Pack NP-F550/F570 Battery with LTD2 USB Charger is a practical, value-minded choice for camera operators who need reliable extra runtime and flexible, USB-based charging. For those who shoot long events or travel and rely on NP-F style batteries, the higher capacity cells plus dual charging and LED status indicators make this kit a sensible buy despite moderate charge speed.

Frequently Asked Questions

Are these batteries compatible with Sony NP-F550/F570 cameras?
Yes, the pack is designed as replacements for NP-F550/F570 style batteries and lists compatibility with many HVR and HXR series camcorders.

Can the charger charge two batteries at once from a power bank?
Yes, the LTD2 supports dual charging and accepts Micro-USB or Type-C input so it can be powered by a sufficiently rated power bank.

Does the kit include a charging cable?
A Micro-USB cable is included; a Type-C cable is not listed but the charger accepts Type-C input if you supply the cable.