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Two cylindrical lithium-ion cells in a clear pack, silver finish, each 2.77 by .81 inches

Kastar

Kastar 74175 2-Pack 3.7V 2.6Ah Flashlight Battery

SKU CH-69AC-6SC9E

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

  • TypeBattery
  • Pack2 Batteries
  • ChemicalLi-Ion
  • Capacity9.36 Wh
  • Dimensions3*2*2 Inch
  • FeaturesHigh Capacity and Manufacture Price.
  • Two-pack delivers 2.6 Ah each for extended flashlight runtime
  • 7 V lithium-ion chemistry matches original Streamlight 74175 specifications
  • Built-in protection guards against over-charge, over-discharge, over-voltage, over-current and over-heating
  • Certified to UL1642 and CE safety standards for reliable replacement use
  • Compatible with Strion, ProTac HL USB and Twin-Task USB flashlight models

Compatible Flashlight Power

This two-pack supplies 3.7 V, 2.6 Ah lithium-ion cells built to replace the Streamlight 74175 battery. They fit Strion and ProTac models including the Strion DS HPL, Strion DS HL, ProTac HL USB flashlight and ProTac HL USB headlamp. Photographers and first responders who rely on those lights gain a direct drop-in replacement.

Capacity and Run-Time

Each cell stores 9.36 Wh at a nominal 3.6 V and 2600 mAh, giving extended operation before recharge. The chemistry delivers consistent output until the protection circuit cuts power at the safety limit, so the light stays bright through most of the cycle. Heavy continuous use will still drain the pack in a single shift, requiring the second cell or a charger.

Build Integration

The 70.3 x 20.6 x 20.6 mm form factor slides into the existing battery compartment without modification. Built-in over-charge, over-discharge, over-voltage, over-current and over-heating guards protect both the cell and the flashlight electronics. UL 1642 and CE compliance means the pack meets recognised safety baselines for professional equipment.

Highlights

  • Two-pack delivers 2.6 Ah each for extended flashlight runtime
  • 7 V lithium-ion chemistry matches original Streamlight 74175 specifications
  • Built-in protection guards against over-charge, over-discharge, over-voltage, over-current and over-heating
  • Certified to UL1642 and CE safety standards for reliable replacement use
  • Compatible with Strion, ProTac HL USB and Twin-Task USB flashlight models

Specifications

BrandKastar
Model74175
Part NumberBA-2B-74175-C
TypeBattery
Pack2 Batteries
ChemicalLi-Ion
Capacity9.36 Wh
Dimensions3*2*2 Inch
FeaturesHigh Capacity and Manufacture Price.

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Questions about this item

Will these 3.7 V 2.6 Ah packs fit the Strion DS HPL I already use?

Yes — the 74175 cells are listed as direct replacements for the Streamlight 74175 battery used in the Strion DS HPL and several other Strion and ProTac models.

How do I confirm the built-in protection circuit is active after I install them?

The pack includes over-charge, over-discharge, over-voltage, over-current and over-heating safeguards; normal charging and steady runtime without sudden cut-out indicate the circuit is functioning.

Does the twin-pack include a charger or do I need to buy one separately?

Only the two 74175 lithium-ion batteries are supplied; a compatible Streamlight charger must be purchased separately.

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