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Cylindrical lithium-ion cell, blue wrap, 70.3 by 20.6 mm

Kastar

Kastar 74175 3.7 V 2.6 Ah flashlight battery

SKU CH-68K1-ZE0PB

3.7 V 2.6 Ah Li-ion battery fits Streamlight Strion and ProTac flashlights with 74175 protection circuit

  • TypeBattery
  • Pack1 Battery
  • ChemicalLi-Ion
  • Capacity9.36 Wh
  • Dimensions3*2*1 Inch
  • FeaturesHigh Capacity and Manufacture Price.
  • Longer run time for your flashlight
  • 7 V 2.6 Ah lithium-ion cell delivers 9.36 Wh
  • Built-in protection against over-charge and over-heating
  • Certified to UL1642 and CE safety standards
  • Fits Strion and ProTac models including 74175

Compatible flashlight battery

This Kastar 74175 lithium-ion cell delivers 3.7 V and 2.6 Ah capacity for Streamlight models including Strion DS HPL, Strion DS HL, ProTac HL USB and Twin-Task USB flashlights. It replaces the original 74175 battery and fits the Strion Switchblade, Strion LED, Strion HPL and ProTac HL USB headlamp units.

Lithium-ion cell limits

The pack uses Li-Ion chemistry rated at 3.6 V nominal and 9.36 Wh energy with built-in protection against over-charge, over-discharge, over-voltage, over-current and over-heating. Cells meet UL1642 and CE safety standards. Physical size is 70.3 x 20.6 x 20.6 mm so the light’s battery compartment must accept those dimensions.

Check your light before ordering

Verify the flashlight or headlamp appears in the compatible list above and that the existing cell is labelled 74175. Confirm the compartment can hold a 70.3 mm long by 20.6 mm diameter cylinder. No charger is included so ensure you already have a suitable Streamlight charger for this chemistry.

Highlights

  • Longer run time for your flashlight
  • 7 V 2.6 Ah lithium-ion cell delivers 9.36 Wh
  • Built-in protection against over-charge and over-heating
  • Certified to UL1642 and CE safety standards
  • Fits Strion and ProTac models including 74175

Specifications

BrandKastar
Model74175
Part NumberBA-1B-74175-C
TypeBattery
Pack1 Battery
ChemicalLi-Ion
Capacity9.36 Wh
Dimensions3*2*1 Inch
FeaturesHigh Capacity and Manufacture Price.

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Questions about this item

Should I choose the 2.6 Ah or 9.36 Wh rating when matching my flashlight?

Both describe the same cell; 2.6 Ah at 3.6 V equals 9.36 Wh, so either figure matches the original Streamlight 74175 specification.

How long will the 2600 mAh capacity actually run my Strion DS HPL?

Runtime depends on the flashlight’s power draw; the 2600 mAh cell stores the same energy as the factory pack, so expect equivalent run time per charge.

Does the built-in protection circuit limit the current my ProTac HL USB can draw?

The circuit guards against over-current, over-voltage, over-charge, over-discharge and over-heating; it allows normal flashlight operation while preventing unsafe conditions.

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