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Small rectangular Ni-MH battery pack, light plastic casing, two wire leads, 33.9 by 20.0 by 10.5 mm

Estry

Estry 80mAh 2.4V Ni-MH battery for Humantechnik RadioLight DIR LR InfraLight II DIR LPU-1

SKU CH-N2X4-271NR

Ni-MH 80mAh 2.4V replacement battery fits Humantechnik RadioLight and InfraLight models, measuring 33.9 x 20.0 x 10.5mm and weighing 34.0g

  • Battery pack size1 Year
  • Details2.4
  • Exact-fit replacement for Humantechnik hearing-aid transmitters
  • 80 mAh capacity keeps devices running through daily use
  • 4 V Ni-MH chemistry matches original voltage spec
  • Compact 33.9 × 20.0 × 10.5 mm pack slides straight into the housing
  • Certified to ISO 9001, RoHS, CE, UN 38.3 and MSDS standards

Replacement for Humantechnik hearing-assist devices

This 2.4 V Ni-MH pack replaces the original battery in RadioLight DIR, RadioLight LR, InfraLight II, InfraLight DIR, LPU-1 and InfraLight II LR units. It is built for users who need a direct drop-in power source for those specific models. Buyers with other hearing-assist brands or different voltage requirements cannot use this pack.

Capacity and voltage match the original spec

The cell delivers 80 mAh at 2.4 V for 0.19 Wh, matching the factory ratings so the device runtime and charging behaviour stay unchanged. A different capacity or voltage would break compatibility.

Simple two-wire swap with built-in protection

The pack measures 33.9 x 20.0 x 10.5 mm and weighs 34.0 g, fitting the existing compartment without modification. Over-charge, over-discharge, over-voltage and short-circuit circuits are integrated; the only common error is reversing the polarity when soldering or plugging the connector.

How it compares

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

Price $12.99
Pricier than about 60% of the 10,440 comparable items (median $10.99).

Specifications

Product
Brand nameNi-MH
Model name80 mAh
In the box
Battery pack size1 Year

Questions about this item

How long will the 80 mAh capacity run my RadioLight DIR before needing a recharge?

The 80 mAh rating at 2.4 V gives 0.19 Wh of stored energy; actual run-time depends on the device's current draw, so divide 80 mAh by the RadioLight DIR's operating current in milliamps to estimate hours.

What does the 2.4 V Ni-MH chemistry mean for charging and compatibility with the InfraLight II?

The pack delivers a nominal 2.4 V from two Ni-MH cells, matching the original voltage for InfraLight II and LPU-1; charge only with a charger designed for 2.4 V Ni-MH packs to avoid over-voltage damage.

Will the 33.9 × 20.0 × 10.5 mm dimensions and 34 g weight fit the battery compartment of my RadioLight LR?

The replacement measures 33.9 mm long, 20.0 mm wide and 10.5 mm thick, weighing 34 g; verify your RadioLight LR compartment matches these dimensions before ordering.

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