Kastar 4-Pack CGR-D16S Battery and LTD2 USB Charger - Compact Power

In this review the Kastar 4-Pack CGR-D16S battery and LTD2 USB charger is evaluated for videographers and photographers who need reliable spare power for older Panasonic camcorders. The package pairs four 7.4V 2100mAh lithium-ion replacement batteries with a compact dual USB charger that can top up two batteries at once and accepts both Micro-USB and Type-C inputs. The single biggest reason to consider this kit is the combination of higher capacity batteries and a flexible, portable charger that displays charge status, making it a practical backup solution for location shoots and extended recording sessions.

Key Features

• High capacity batteries: The 2100mAh 7.4V lithium-ion cells provide extended runtime compared with many OEM equivalents, reducing swap frequency during shoots.
• Dual battery charging: The LTD2 charger can charge two batteries at the same time, useful when multiple spares are needed between shoots.
• Interchangeable charge plate: The charger accepts a changeable plate to accommodate different battery shapes, increasing compatibility with several Panasonic battery models.
• Multiple input options: With Micro-USB and Type-C inputs and a 5V 2-3A 15W input rating, the charger is easy to power from common USB supplies or power banks.
• Intelligent LED display: The USB dual charger shows charging status and remaining battery capacity with LEDs, helping plan battery swaps without guesswork.
• Portable design: The kit is lightweight and the charger comes with a Micro USB cable, making it convenient for travel and field work.

Who It's For

This kit is aimed at owners of Panasonic camcorders that use CGR-D16, CGR-D28, CGR-D320 series or VW-VBD25 style batteries who need multiple spares for long shoots, events, or travel. The higher 2100mAh capacity and dual charging capability make it a sensible choice for indie filmmakers, run-and-gun shooters, and owners of legacy Panasonic models listed in the compatibility notes.

It is less appropriate for users who only shoot short sessions and rarely need extra batteries, or those who must keep strictly OEM-branded batteries for warranty or service reasons. Also, if a camera requires a proprietary charging dock, this universal-style charger may not be suitable without confirming plate compatibility.

Pros & Cons

Pros

• Four 2100mAh lithium-ion cells offer noticeably longer runtime than many stock cells.
• Charger supports charging two batteries simultaneously, speeding turnaround between uses.
• USB input options and included Micro USB cable make it easy to power the charger on the go.
• LEDs provide clear feedback on charging status and approximate battery capacity.

Cons

• The charger relies on changeable plates for different battery models, which requires confirming the correct plate for some older Panasonic packs.
• This kit is for legacy Panasonic battery formats; it is not a universal solution for all camera brands and modern battery types.

Specifications

Battery type	Lithium-Ion
Battery voltage	7.4V
Battery capacity	2100mAh
Charger input	5V 2-3A (15W) via Micro-USB or Type-C
Charger output	8.4V 800mA per bay (800mA x1 or 800mA x2)
Included accessories	Micro USB cable

Our Verdict

The Kastar 4-Pack CGR-D16S battery and LTD2 charger is a pragmatic, value-focused kit for users of compatible Panasonic camcorders who need dependable extra runtime and flexible charging on location. With four higher-capacity batteries, dual charging and USB power options, it delivers practical convenience and good value versus buying single OEM cells, provided you confirm plate compatibility for your specific battery model.

Frequently Asked Questions

Are these batteries compatible with Panasonic CGR-D28 and CGR-D320 models?
Yes, the pack lists compatibility with CGR-D28 and CGR-D320 series batteries and related Panasonic model numbers, but always use Ctrl + F on the compatibility list to confirm your exact battery code.

Can the charger power two batteries at once from a power bank?
Yes, the LTD2 charger accepts Micro-USB or Type-C input at 5V 2-3A and can charge two batteries simultaneously if the power source can deliver sufficient current.

Does the kit include a Type-C cable?
The kit includes a Micro USB cable; Type-C input is supported but a Type-C cable may need to be supplied separately.