We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Four rectangular lithium-ion camera batteries in blue shrink wrap

Kastar

Kastar NP-120 3.7V 2300mAh 4-pack camera battery

SKU CH-AGDX-YRWFJ

Four 3.7 V 2300 mAh lithium-ion packs replace Fieldpiece RLB2 cells in SCL2, SRL2 and SRL8 leak detectors

  • TypeBattery
  • Pack4 Batteries
  • ChemicalLi-Ion
  • Capacity8.51 Wh
  • Dimensions3*2*3 Inch
  • FeaturesHigh Capacity and Manufacture Price.
  • High capacity 2300 mAh powers devices longer
  • UL1642 and CE certified cells ensure safe operation
  • Built-in protection guards against over-charge and over-heating
  • Four-pack delivers extended run time for leak detectors
  • 7 V lithium-ion chemistry matches Fieldpiece RLB2 spec

Kastar NP-120 4-Pack Battery Set

This four-pack supplies 3.7V lithium-ion cells rated at 2300mAh each for compatible Fieldpiece leak detectors. Technicians who service SCL2, SRL2 or SRL8 instruments receive enough spares to keep multiple units running during long shifts.

Suits Fieldpiece SCL2 SRL2 SRL8 owners

Buyers whose equipment accepts the RLB2 part number can use these replacements directly. Users of other detector brands or models requiring different voltages or form factors should look elsewhere.

3.7V 2300mAh lithium-ion chemistry

Each cell delivers 8.51 Wh and includes built-in protection against over-charge, over-discharge, over-voltage, over-current and over-heating. UL1642 and CE compliance confirms the safety baseline for professional use.

Highlights

  • High capacity 2300 mAh powers devices longer
  • UL1642 and CE certified cells ensure safe operation
  • Built-in protection guards against over-charge and over-heating
  • Four-pack delivers extended run time for leak detectors
  • 7 V lithium-ion chemistry matches Fieldpiece RLB2 spec

Specifications

BrandKastar
ModelNP-120
Part NumberBA-4B-Q120-C
TypeBattery
Pack4 Batteries
ChemicalLi-Ion
Capacity8.51 Wh
Dimensions3*2*3 Inch
FeaturesHigh Capacity and Manufacture Price.

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

How long will the 2300 mAh rating actually run a Fieldpiece SRL2 leak detector?

The 3.7 V, 2300 mAh cells store 8.51 Wh each; run-time depends on the detector's current draw, so divide 8.51 Wh by the device's wattage to estimate hours per battery.

What charging standard does the built-in protection circuit follow for these 3.7 V lithium-ion cells?

The pack meets UL 1642 and CE safety standards and includes over-charge, over-discharge, over-voltage, over-current and over-heating protection; use a charger designed for single-cell 3.7 V Li-ion.

Will the 3-by-2-by-3 inch dimensions fit the battery compartment of a Fieldpiece SCL2?

Each cell measures 3 x 2 x 3 inches; verify that the SCL2 compartment matches those external dimensions before purchase.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.