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Two cylindrical lithium-ion batteries, blue wrap, 2.77 by 0.81 inches

Kastar

Kastar 74175 2-Pack 3.7V 2.6Ah Li-ion Camera Battery

SKU CH-R1NF-KYM9R

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

  • Total capacity9.36 Wh
  • Pack contents2 Batteries
  • Battery chemistryLi-Ion
  • Product typeBattery
  • Product dimensions3 × 2 × 2 in
  • Key featuresHigh Capacity and Manufacture Price.
  • Longer runtime for flashlights with 2.6 Ah capacity
  • Reliable power delivery at 3.6 V nominal voltage
  • Certified safety through UL1642 and CE standards
  • Built-in protection against over-charge and over-discharge
  • Two batteries included for extended operational readiness

Compatible Power for Streamlight 74175

This two-pack of Kastar 74175 lithium-ion cells replaces the Streamlight 74175 battery in Strion and ProTac flashlights and headlamps. Each cell delivers 3.7 volts and 2.6 ampere-hours for extended run time. The pack suits professionals and enthusiasts who need reliable backup power for compatible Streamlight models.

Verify Your Device Model

Confirm that your flashlight or headlamp appears in the compatibility list: Strion Switchblade, Strion LED, Strion LED HL, Strion HPL, Strion DS HPL, Strion DS HL, ProTac HL USB flashlight, ProTac HL USB headlamp, or Twin-Task USB headlamp. The battery measures 70.3 by 20.6 by 20.6 millimetres, so the compartment must accept those dimensions. No charger is included, so ensure you have a suitable charging method.

Ready for Dual-Battery Rotation

Two cells let you keep one in the light and one charging or stored as a spare. Built-in protection guards against over-charge, over-discharge, over-voltage, over-current and over-heating. The 9.36 watt-hour rating meets UL1642 and CE safety standards. No additional accessories are required beyond a compatible Streamlight charger or charging cradle.

How it compares

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

Price $21.99
Pricier than about 65% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model name74175
Part numberBA-2B-74175-A
Total capacity9.36 Wh
Product typeBattery
Power
Battery chemistryLi-Ion
Size & build
Product dimensions3 × 2 × 2 in
In the box
Pack contents2 Batteries

Other versions of this model

5 more in the same range

Questions about this item

What comes in the box and is a charger included?

The pack contains two Kastar 74175 lithium-ion batteries rated at 3.7V and 2.6Ah. A charger is not included and must be purchased separately.

How do I choose between the voltage and capacity figures shown?

The cells are 3.6V nominal with a 2600mAh capacity; the 3.7V and 2.6Ah labels are equivalent marketing ratings for the same pack.

What does the 9.36 Wh rating mean for actual flashlight run-time?

It indicates the total energy stored; a Strion or ProTac light drawing roughly 3 watts would run for about three hours on one cell.

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