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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

  • Total capacity9.36 Wh
  • Pack contents3 Batteries
  • Battery chemistryLi-Ion
  • Product typeBattery
  • Product dimensions3 × 2 × 3 in
  • Key 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.

How it compares

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

Price $31.99
Pricier than about 80% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model name74175
Part numberBA-3B-74175-C
Total capacity9.36 Wh
Product typeBattery
Power
Battery chemistryLi-Ion
Size & build
Product dimensions3 × 2 × 3 in
In the box
Pack contents3 Batteries

Other versions of this model

5 more in the same range

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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