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Cylindrical silver battery with green label, 46.5 by 10.3 mm

Estry

Estry 700mAh 1.2V Ni-MH Battery WM1590-7290

SKU CH-YZ2Q-8QXSZ

Ni-MH replacement cell delivering 1.2 V and 700 mAh for Wella Contura HS40, HS60, HS61, Super Chromini and Bella clippers

  • Battery pack size1 Year
  • Details1.2
  • 700 mAh capacity powers Contura HS40 HS60 HS61 Super Chromini Bella
  • 2 V Ni-MH chemistry matches original WM1590-7290 specifications
  • 5 x 10.3 x 10.3 mm form factor fits existing battery compartment
  • 5 g weight keeps handset balance unchanged
  • ISO 9001 RoHS CE UN38.3 MSDS certifications confirm safety compliance

Replacement for Wella Clippers

The Estry WM1590-7290 is a 1.2V Ni-MH battery built to match the original specifications for Wella Contura HS61, HS40, HS60, Super Chromini and Bella models. It delivers a capacity of 700mAh and an energy rating of .84Wh. The pack measures 46.5 x 10.3 x 10.3mm and weighs 36.5g.

Upgrading from Depleted Cells

This unit replaces a worn or dead original battery when runtime has dropped noticeably or the device no longer holds a charge. The jump is worth it when the clipper or trimmer struggles to complete a typical session or shows reduced power output. Built-in protection against overcharge, over-discharge, over-voltage and short circuits helps extend the new pack’s service life.

Limits of Ni-MH Chemistry

Nickel-metal hydride cells self-discharge faster than lithium types, so the pack loses charge during long storage periods. They also exhibit a memory effect if repeatedly recharged before full depletion, which can reduce usable capacity over time. The 1.2V nominal voltage is fixed by chemistry and cannot be altered for higher-power applications. Buyers needing a different voltage or form factor cannot use this pack.

How it compares

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

Price $10.99
Typical for this category: the median of 10,440 items is $10.99.

Specifications

Product
Brand nameNi-MH
Model name700 mAh
In the box
Battery pack size1 Year

Questions about this item

Will the 46.5 mm by 10.3 mm size fit my Wella Contura HS61 trimmer?

The pack measures 46.5 x 10.3 x 10.3 mm and weighs 36.5 g, matching the original WM1590-7290 dimensions for the Contura HS61, HS40, HS60, Super, Chromini and Bella models.

How do I replace the cell without damaging the contacts?

Remove the trimmer's end cap, slide the old 1.2 V 700 mAh pack out, insert the new Ni-MH cell with the positive end toward the motor, then refit the cap — forcing it backwards bends the spring terminals.

When will the 700 mAh Ni-MH pack need replacing?

The manufacturer rates the battery pack for one year of normal use; after that runtime shortens and the cell should be swapped for a fresh WM1590-7290 unit.

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