Kastar 4-Pack CGR-D16S Battery and LTD2 USB Charger - Dual Fast Charge

In this review the Kastar 4-Pack CGR-D16S battery and LTD2 USB charger is evaluated for videographers who need reliable spare power for older Panasonic camcorders. The bottom line: this kit is for users who value capacity and flexible charging over OEM branding. The set includes four 7.4V 2100mAh lithium-ion replacement batteries and a dual-bay USB charger that can charge two batteries at once via Micro-USB or Type-C input, making it a practical, portable power solution for extended shoots and travel.

Key Features

• Battery Type: The 7.4V lithium-ion 2100mAh cells give a predictable run time that matches common CGR-D16S use in compatible Panasonic camcorders.
• Dual Charging: The LTD2 charger can charge two batteries at the same time, which helps keep multiple spares topped up between recording sessions.
• Multiple Inputs: With Micro-USB and Type-C input options and a 5V 2-3A 15W input rating, the charger can be powered from modern power banks or wall adapters while on location.
• Changeable Plate: The interchangeable plate lets the charger accommodate different battery plates, adding versatility if you use several compatible battery types.
• LED Status: The intelligent LED indicators show charging status and relative battery capacity so it is easier to manage which cells are ready for use.

Who It's For

This kit is best for independent filmmakers, event videographers, and hobbyists who operate older Panasonic handheld camcorders such as the AG-AC90 or AG-DVC models and need multiple spare batteries for full-day shoots. The 2100mAh capacity per pack offers a useful balance between run time and weight for on-camera use.

Users who require manufacturer-branded OEM batteries for warranty or longest possible single-charge runtime should look elsewhere; likewise, those needing extremely high-capacity or professional hot-swappable systems may prefer dedicated pro battery solutions.

Pros & Cons

Pros

• Four batteries in one kit deliver multiple spares so you can swap on long shoots without hunting for outlets.
• Dual-bay USB charging and both Micro-USB and Type-C inputs make the charger portable and convenient for field use.
• Interchangeable plate and intelligent LED indicators add practical flexibility and clear charging feedback.

Cons

• Capacity at 2100mAh is solid for many users but not a high-capacity option for professionals needing maximum runtime per battery.

Specifications

Battery Type	Lithium-Ion
Battery Voltage	7.4V
Battery Capacity	2100mAh (each)
Charger Input	5V 2-3A 15W (Micro-USB / Type-C)
Charger Output	8.4V 800mA x1 or 800mA x2
Charger Bays	2 (simultaneous charge)

Our Verdict

The Kastar 4-Pack CGR-D16S battery and LTD2 USB charger is a practical, value-focused kit for users of compatible Panasonic camcorders who need multiple spares and portable charging. It pairs adequate 2100mAh capacity with flexible USB charging and clear LED status, making it a sensible choice for shooters who prioritize convenience and cost over OEM branding or maximum single-battery runtime.

Frequently Asked Questions

Will these batteries fit Panasonic AG-AC90?
Yes, the pack lists compatibility with AG-AC90 and other Panasonic models that use CGR-D16 style batteries.

Can the charger power from a USB power bank?
Yes, the charger accepts 5V 2-3A input via Micro-USB or Type-C so it can be powered by most adequate-capacity power banks or USB adapters.

How many batteries can charge at once?
The LTD2 charger supports charging two batteries simultaneously with LED indicators showing status for each bay.