Kastar 4-Pack Battery and LCD AC Charger Compatible with Pentax
Kastar 4-Pack Battery and LCD AC Charger Compatible with Pentax
Price subject to change. Tap below for current.
Couldn't load pickup availability
In this review the Kastar 4-Pack Battery and LCD AC Charger is presented for Pentax owners who need reliable spare power for extended shoots. The bottom line: this kit is for photographers who want multiple genuine-replacement 7.4V lithium-ion cells and a compact charger that shows charge status and remaining capacity. The reviewer found the pack easy to fit into bags, useful for travel thanks to the foldable flat pin, and practical for everyday shooting where quick battery swaps keep a camera like the Pentax K-70 or KP running through long sessions.
Key Features
- Battery Type: The included lithium-ion cells provide stable 7.4V power and match the Pentax D-Li109 specification so they are suitable for extended use in compatible camera models.
- High Capacity: Each 2100mAh battery offers longer runtime than many standard spares, reducing the need to recharge during a full day of shooting.
- LCD AC Charger: The charger displays charging status and battery capacity so users can confirm charge progress at a glance before heading out.
- Universal AC Input: With an input range of AC 100~240V 50~60Hz the charger is travel friendly and usable on most worldwide mains outlets without an adapter.
- Compact Design: The charger has a foldable flat pin for easy storage, making the kit simpler to carry in camera bags or luggage.
Who It's For
This kit is best for Pentax mirrorless and DSLR photographers who use camera models that accept the D-Li109 battery, such as the K-R, K-30, K-50, K-70, K-500, K-S1, K-S2 and KP. Enthusiasts who shoot events, travel, or long sessions will appreciate having four spare batteries and a charger that displays battery capacity so they can plan recharges.
It is less necessary for casual users who only take occasional photos and rarely run a battery flat; those users might prefer a single spare cell instead of a four-pack. Also, professionals who require manufacturer service or exact OEM warranties should weigh that against third-party replacements.
Pros & Cons
Pros
- Four 2100mAh batteries provide ample reserve power for long shoots.
- The LCD charger shows charge status and capacity for quick battery checks.
- Charger input of AC 100~240V makes the unit convenient for travel.
Cons
- The kit is a third-party replacement rather than a factory-branded part, which some owners may prefer to avoid.
Specifications
| Battery Type | Lithium-Ion |
| Battery Voltage | 7.4V |
| Battery Capacity | 2100mAh |
| Charger Input | AC 100~240V 50~60Hz |
| Charger Output | DC 8.4V 800mA |
| Package Contents | 4-Pack Batteries + 1 LCD AC Charger Kit |
| Compatible Battery Model | Pentax D-Li109 |
Our Verdict
The Kastar 4-Pack Battery and LCD AC Charger kit is a practical value purchase for Pentax users who need multiple spares and a clear way to monitor charging. It delivers higher-capacity cells, a travel-ready charger with a foldable pin, and an LCD that helps manage battery rotation. For travel shooters and event photographers this kit is a cost-effective way to stay powered without frequent recharges.
Frequently Asked Questions
Will these batteries fit my Pentax K-70?
Yes, the batteries are compatible with cameras that accept the Pentax D-Li109 battery, including the K-70.
Can I use the charger worldwide?
Yes, the charger accepts AC 100~240V 50~60Hz so it works on most international mains voltages.
How many batteries are included?
The package includes four batteries and one LCD AC charger.
Editor's Take
The Kastar 4-Pack Battery and LCD AC Charger kit is a practical, value-packed solution for Pentax users who need multiple spares and a travel-ready charger with an LCD to monitor charge status.

Recently viewed
Recently viewed products will appear here as customers browse the store.