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Three cylindrical lithium-ion batteries in blue sleeves, 2.77 by .81 inches each

Kastar

Kastar 74175 3-Pack 3.7V 2.6Ah Li-Ion Camera Battery

SKU CH-ZD5N-6322G

Three 3.7 V 2.6 Ah lithium-ion cells replace Streamlight 74175 batteries in Strion and ProTac flashlights

  • TypeBattery
  • Pack3 Batteries
  • ChemicalLi-Ion
  • Capacity9.36 Wh
  • Dimensions3*2*3 Inch
  • FeaturesHigh Capacity and Manufacture Price.
  • Longer run time from 2600 mAh capacity
  • Three batteries included for continuous use
  • Built-in protection against over-charge and over-heat
  • Meets UL1642 and CE safety standards
  • Fits Strion and ProTac flashlight models

Three-pack replacement cells

The Kastar 74175 pack supplies three lithium-ion batteries rated at 3.6 V and 2600 mAh each, delivering 9.36 Wh per cell. They are built as direct replacements for the Streamlight 74175 pack used in a range of Strion and ProTac flashlights and headlamps.

Built-in protection and compact form

Each cell measures 70.3 x 20.6 x 20.6 mm and meets UL 1642 and CE safety standards with over-charge, over-discharge, over-voltage, over-current and over-heating circuits integrated into the pack. The three-unit bundle lets you keep spares charged and rotate them without downtime.

Verify your light uses the 74175 pack

Confirm that your device accepts the Streamlight 74175 battery model before ordering; the cells are not compatible with lights that require a different form factor or voltage. Check the original battery label or the flashlight manual to ensure a correct match.

Highlights

  • Longer run time from 2600 mAh capacity
  • Three batteries included for continuous use
  • Built-in protection against over-charge and over-heat
  • Meets UL1642 and CE safety standards
  • Fits Strion and ProTac flashlight models

Specifications

BrandKastar
Model74175
Part NumberBA-3B-74175-C
TypeBattery
Pack3 Batteries
ChemicalLi-Ion
Capacity9.36 Wh
Dimensions3*2*3 Inch
FeaturesHigh Capacity and Manufacture Price.

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Questions about this item

What voltage does the 3.7 V Li-ion cell deliver, and how does that translate to watt-hours?

Each cell is rated at 3.6 V nominal and 2600 mAh, giving 9.36 Wh of stored energy per battery.

What are the exact dimensions of the 74175 battery so I can confirm it fits my Streamlight flashlight?

The pack measures 70.3 × 20.6 × 20.6 mm (2.77 × 0.81 × 0.81 in), matching the original Streamlight 74175 form factor.

How do I install the three-pack correctly, and what common mistake should I avoid?

Insert each cell with the positive end toward the flashlight head; the built-in protection circuit prevents reverse-polarity damage, but forcing a cell backwards can still jam the compartment.

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