Kastar Fast Dual LCD Charger for Pentax and Trimble - Fast Dual

In this review the Kastar Fast Dual LCD Charger is presented for photographers and field surveyors who need a reliable replacement for OEM units. The bottom line: it charges two batteries simultaneously with clear LCD indicators and intelligent MCU control, making it useful for users of Pentax camera batteries and Trimble GNSS packs who want faster, safer charging and broader voltage support. The review focuses on compatibility, charging behavior, and practical value for those replacing lost or worn chargers.

Key Features

• Dual LCD display: The charger shows charging status and battery capacity on two screens so users can monitor both batteries at a glance and plan workflow without guesswork.
• Worldwide input voltage: With 110-240V support, the unit works internationally for photographers and survey crews who travel and need consistent charging performance.
• Intelligent MCU control: The built-in MCU automatically identifies battery voltage and adapts charging to prevent overcharge, reducing risk to battery life.
• Simultaneous 1000mA outputs: Each slot provides 1000mA so two batteries can be replenished quickly, helping users keep devices ready in busy shoot or field days.
• CC/CV charging with pre-charge: The charger uses constant-current/constant-voltage chemistry and offers pre-charging and 0V activation for Li-ion cells, which helps revive deeply discharged cells safely.

Who It's For

The Kastar dual charger is aimed at camera owners using Pentax Ei-D-Li1 or EI-2000 series batteries and professionals using compatible Trimble packs who need dependable dual charging and visible status feedback. It suits those replacing an OEM charger or wanting a compact travel-friendly unit that supports international voltage.

It is less appropriate for users who need ultra-rapid high-current charging beyond 1000mA per slot or proprietary chargers with manufacturer-specific diagnostics. Also, buyers should verify exact battery plate compatibility before assuming fit with every camera model.

Pros & Cons

Pros

• Clear dual LCDs provide intuitive status and capacity information during charge cycles.
• Works worldwide on 110-240V, a practical feature for travel and fieldwork.
• Intelligent MCU and CC/CV design reduce overcharge risk and support battery longevity.
• Customers report good value and performance comparable to or better than some OEM chargers.

Cons

• Output is limited to 1000mA per slot, so charging is not the fastest option for users needing very rapid top-ups.
• Buyers must confirm the correct plate for their specific battery model before purchase.

Specifications

Our Verdict

The Kastar Fast Dual LCD Charger is a practical, value-oriented replacement for users of compatible Pentax and Trimble batteries who want reliable dual charging and clear status feedback. Its intelligent MCU and international voltage support make it a sensible choice for travelers and field professionals, though it does not replace very high-current fast chargers.

Frequently Asked Questions

Will this charger work with my Pentax Ei-D-Li1 battery?
Yes, the product is listed as compatible with Pentax Ei-D-Li1 batteries; confirm physical plate fit before use.

Can it charge two batteries at the same time?
Yes, it charges two batteries simultaneously, each at up to 1000mA, with separate LCD indicators for each slot.

Is it safe for Li-ion batteries?
Yes, the charger uses CC/CV charging with pre-charge and 0V activation and an MCU to prevent overcharge, which helps protect Li-ion cells.