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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

  • Specifications1.2
  • Battery Pack1 Year
  • 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.

Highlights

  • 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

Specifications

BrandNi-MH
Model700mAh
Specifications1.2
Battery Pack1 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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