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Small rectangular Ni-MH battery pack, green label, 42.6 x 29.95 x 14.54mm

Estry

Estry KX-T9910 3.6V 600mAh standard battery

SKU CH-5Y58-NZB16 MPN KX-T9910

Ni-MH replacement battery for Panasonic cordless phones, 3.6V 600mAh with built-in protection circuits

  • Specifications3.6
  • Battery Pack1 Year
  • Direct replacement for original Panasonic cordless handsets
  • 6 V 600 mAh Ni-MH chemistry delivers 2.16 Wh runtime
  • Built-in overcharge, over-discharge, over-voltage and short-circuit protection
  • Compact 42.6 x 29.95 x 14.54 mm pack weighs 87.2 g
  • Certified to ISO 9001, RoHS, CE and UN 38.3 standards

Compatible Cordless Handsets

The Estry KX-T9910 is a nickel-metal hydride replacement pack built to match the original specifications for several Panasonic cordless phone models. It fits the KX-T9910, KXT9608, KXT9910DL, KX-T38001 and KX-T9980 handsets, restoring talk time and standby performance for domestic or office users who need a direct swap.

Thermals Noise and Power Draw

The 3.6 V, 600 mAh cell delivers 2.16 Wh of energy and operates at the low currents typical of DECT handsets, so it generates no perceptible heat and makes no audible noise during normal calls or standby. Integrated protection guards against overcharge, over-discharge, over-voltage and short circuits, keeping power draw stable and safe throughout daily use.

Sustained Load Behaviour

Under continuous talk-time load the pack maintains a steady voltage curve without the sudden drops seen in aged cells, supporting long conversations without early low-battery warnings. The chemistry and protection circuit are rated for extended cycling, and the unit carries ISO 9001, RoHS, CE, UN 38.3 and MSDS certification for compliance and durability. Buyers needing higher capacity packs or multi-cell configurations should verify their handset accepts only this single 42.6 x 29.95 x 14.54 mm, 87.2 g form factor.

Highlights

  • Direct replacement for original Panasonic cordless handsets
  • 6 V 600 mAh Ni-MH chemistry delivers 2.16 Wh runtime
  • Built-in overcharge, over-discharge, over-voltage and short-circuit protection
  • Compact 42.6 x 29.95 x 14.54 mm pack weighs 87.2 g
  • Certified to ISO 9001, RoHS, CE and UN 38.3 standards

Specifications

BrandNi-MH
Model600mAh
Specifications3.6
Battery Pack1 Year

Questions about this item

How do I install the Estry KX-T9910 battery in my cordless phone handset?

Power off the handset, open the battery compartment, disconnect the old pack, match the connector polarity, insert the 42.6 x 29.95 x 14.54mm pack, close the cover, then charge fully before first use.

What maintenance or replacement will this 600mAh Ni-MH pack need later?

Expect gradual capacity loss after several hundred charge cycles; replace when talk time drops noticeably, typically after one to two years of daily use.

What limit appears first during a long call on this 3.6V 2.16Wh battery?

The 600mAh capacity sets the maximum talk duration; continuous transmission drains the pack until voltage falls below the handset cutoff threshold.

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