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A compact black charger with four battery slots and three silver lithium-ion batteries alongside

Kastar

Kastar 3-Pack Battery & Quadruple Charger for Olympus Panasonic Pentax

SKU CH-4EKR-27Z0F

Three 1800 mAh lithium-ion batteries and a compact charger that powers four cells simultaneously via Micro-USB or USB-C

  • Total capacity6.66 Wh
  • Pack contents1 Charger + 3 Batteries
  • Battery chemistryLi-Ion
  • Product typeBattery & Charger
  • Product dimensions3.5 × 2 × 2.5 in
  • Key featuresQuadruple USB charger, can charge 4 batteries at the same ti
  • Charge four batteries simultaneously with the quadruple USB charger
  • Three 1800 mAh lithium-ion batteries deliver 6.66 Wh each
  • Micro-USB and USB-C inputs with included Type-C cable
  • Intelligent display shows charging status and battery capacity
  • Compatible with Olympus Li-50B, Panasonic VW-VBX090 and Pentax D-Li92 cells

Kastar LI-50B Battery Set

This pack supplies three 1800 mAh lithium-ion cells rated at 3.7 V and 6.66 Wh each, plus a charger that accepts up to four batteries at once. It targets owners of Olympus, Panasonic and Pentax compact cameras who need spare power for long shooting days. The cells replace the original LI-50B, VW-VBX090 and D-Li92 packs used across dozens of listed models.

Quadruple USB Charger Benefits

The charger delivers 800 mA per slot when one or two batteries are inserted and 500 mA per slot when three or four are loaded, with a 4.2 V termination voltage. A built-in display shows individual charging status and remaining capacity for each cell. Micro-USB and USB-C inputs allow power from common adapters or power banks, and a USB-C cable is included in the box.

USB Power Limits

Maximum input is 5 V at 2 to 3 A, so the charger cannot draw more than 15 W from the source. This caps total output when all four slots are active, extending the time needed to fill every battery compared with a higher-wattage supply. The unit does not support proprietary fast-charge protocols and relies on standard USB power delivery only.

How it compares

Measured against everything we stock in Camera Batteries, Grips & Chargers, at today’s prices. Recalculated every night.

Price $18.99
Pricier than about 55% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model nameLI-50B VW-VBX090 D-Li92 DB-100 lb-050 lb-052 GB-50A
Part numberLHD4-3B-LI50B-B
Total capacity6.66 Wh
Product typeBattery & Charger
Power
Battery chemistryLi-Ion
Size & build
Product dimensions3.5 × 2 × 2.5 in
In the box
Pack contents1 Charger + 3 Batteries

Other versions of this model

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Questions about this item

When will the LI-50B batteries need replacing?

Each LI-50B cell is rated at 1800 mAh and 6.66 Wh; after several hundred charge cycles capacity will drop below useful levels, at which point you replace the individual battery.

What limits the quadruple charger during a long charging session?

The charger supplies 800 mA per slot for one or two batteries and 500 mA per slot when three or four are charging simultaneously, so total output current is the first limit reached.

How much heat or noise does the charger produce when running all day?

The compact USB charger has no fan; it draws 5 V at up to 3 A (15 W) and may become warm to the touch during continuous four-battery charging, but it operates silently.

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