We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Rectangular Ni-MH battery pack 87.2 x 51.8 x 14.8mm green label

Estry

Estry ZW-6404-NL 7.2V 2000mAh standard battery

SKU CH-J42T-P8GPE MPN ZW-6404-NL

Replacement 7.2V 2000mAh Ni-MH battery pack for ZeroWire control panels, 14.4Wh with overcharge and short-circuit protection

  • Specifications7.2
  • Battery Pack1 Year
  • Direct replacement for ZeroWire control panel
  • 2V 2000mAh Ni-MH delivers 14.4Wh runtime
  • Overcharge, over-discharge and short-circuit protection built in
  • Certified to ISO9001, RoHS, CE, UN38.3 and MSDS
  • Compact 87.2 x 51.8 x 14.8mm pack weighs 218.0g

Estry 7.2V 2000mAh Ni-MH Battery

The Estry ZW-6404-NL is a 7.2V 2000mAh nickel-metal hydride battery built for the CaddX ZeroWire control panel. It delivers 14.4Wh of energy in a pack measuring 87.2 x 51.8 x 14.8mm and weighing 218.0g. Installers and system owners use it as a direct replacement for the original ZW-BS01 power pack. Certified to ISO9001, RoHS, CE, UN38.3 and MSDS standards.

Replaces Original ZW-BS01 Control Panel Pack

This unit replaces the factory ZW-BS01 battery when runtime drops or the pack no longer holds charge. The jump is worth it when the control panel signals low backup capacity or after several years of continuous service. Matching the original 7.2V voltage and 2000mAh capacity restores the specified backup time without altering the panel’s charging circuit. No higher-capacity alternative is offered in this form factor.

Simple Two-Wire Swap With Polarity Check

Installation requires opening the control panel enclosure, disconnecting the old pack and connecting the new one using the existing two-wire lead. The key risk is reversing polarity; verify the red and black wire positions before seating the connector. The rigid pack dimensions (87.2 x 51.8 x 14.8mm) must align with the internal battery cavity or the cover will not close. No soldering or firmware update is needed.

Highlights

  • Direct replacement for ZeroWire control panel
  • 2V 2000mAh Ni-MH delivers 14.4Wh runtime
  • Overcharge, over-discharge and short-circuit protection built in
  • Certified to ISO9001, RoHS, CE, UN38.3 and MSDS
  • Compact 87.2 x 51.8 x 14.8mm pack weighs 218.0g

Specifications

BrandNi-MH
Model2000mAh
Specifications7.2
Battery Pack1 Year

Questions about this item

Will the 87.2 x 51.8 x 14.8 mm dimensions fit the ZeroWire control panel battery compartment?

Yes, the pack is built to the original ZW-BS01 specifications so it matches the control panel cavity exactly.

How do I install the replacement pack, and which step do people skip?

Disconnect mains power, open the panel cover, unplug the old ZW-BS01 connector, insert the new pack observing the 7.2 V polarity, then close the cover before restoring power.

What replacement interval should I plan for the 2000 mAh Ni-MH cells?

Expect roughly one year of service before capacity drops enough to warrant a fresh ZW-6404-NL pack.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.