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Rectangular lithium battery pack, dark casing, 148 by 89 by 20 mm, 600 g

Estry

Estry Standard Battery 7500mAh 10.8V for FiberPa OTDR OT-8800 OT-8810 OT-8820 SGT-18A

SKU CH-TPVH-Q8DFX

Replacement lithium battery pack delivers 7500 mAh at 10.8 V for FiberPa OTDR OT-8800, OT-8810, OT-8820 and SGT-18A models

  • Battery pack size1-pack
  • Battery typeLithium
  • Battery capacity7,500 mAh
  • Battery voltage rating10.8
  • Product typeBatteries
  • Exact-spec replacement keeps OTDR running reliably
  • 7500 mAh capacity supports extended field sessions
  • 8 V lithium chemistry matches original power profile
  • Overcharge and short-circuit protection safeguards battery life
  • Certified to ISO 9001, RoHS, CE, UN38.3 and MSDS standards

Direct Replacement Battery

This lithium-ion pack is built to match the original specifications for FiberPa OTDR models OT-8800, OT-8810, OT-8820 and SGT-18A. It supplies 10.8 volts and a rated capacity of 7500 milliampere-hours for field technicians who need a reliable spare or replacement unit.

Sustained Field Operation

The cell chemistry and protection circuitry guard against overcharge, over-discharge, over-voltage and short circuits during long test sessions. With an energy rating of 71.28 watt-hours the pack maintains stable output across extended measurement runs without sudden voltage sag.

Rugged Enclosure and Certifications

The housing measures 148.0 by 89.0 by 20.0 millimetres and weighs 600.0 grams, fitting the existing battery compartment without modification. Compliance with ISO9001, RoHS, CE, UN38.3 and MSDS confirms manufacturing quality and safe transport for daily deployment.

How it compares

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

Price $82.99
Pricier than about 91% of the 10,440 comparable items (median $10.99).

Specifications

Product
Brand nameFiberPa
Product typeBatteries
Power
Battery typeLithium
Battery capacity7,500 mAh
Battery voltage rating10.8
In the box
Battery pack size1-pack

Questions about this item

How much heat does the 7500 mAh 10.8 V lithium pack generate during continuous OTDR operation?

The pack includes overcharge, over-discharge, over-voltage and short-circuit protection to limit temperature rise during extended use.

What must I already own for this replacement battery to work?

You need one of the compatible FiberPa OTDR models — OT-8800, OT-8810, OT-8820 or SGT-18A — with the matching battery compartment.

Will the 148.0 × 89.0 × 20.0 mm form factor fit the original battery bay on my OT-8820?

Yes, the dimensions match the original specification so the pack seats directly in the existing bay without modification.

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