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Rectangular Ni-MH battery pack, matte finish, labelled 8.4V 3000mAh

Estry

Estry Battery Replacement for PB Max Swimming Pool 7C2219MF 8.4V 3000mAh

SKU CH-6RJY-8G3KP

Ni-MH replacement battery delivers 8.4 V and 3000 mAh for compatible Max Swimming Pool cleaners

  • Specifications8.4
  • Battery Pack1 Year
  • Replaces original PB Max Swimming Pool battery exactly
  • 4V 3000mAh Ni-MH delivers 25.2Wh runtime
  • Built-in overcharge over-discharge and short-circuit protection
  • Certified ISO9001 RoHS CE UN38.3 and MSDS
  • Compact 88.1 x 89.9 x 22.7mm fits 456.0g weight

Direct Replacement for PB Max Pool Cleaner

This Estry battery replaces part numbers 7C2219MF, PBA007, 10142A007 and PB-BH843-RR1P in Max Swimming Pool cleaners. It matches the original 8.4V voltage and 3000mAh capacity so the robot runs exactly as designed. Buyers who need a different voltage or connector will not be served by this pack.

Thermal Behaviour and Power Delivery

Ni-MH chemistry delivers steady current without the voltage sag seen in older packs, keeping motor torque consistent through a cleaning cycle. Built-in protection guards against overcharge, over-discharge, over-voltage and short circuits. The 25.2Wh energy rating means the unit ships without special freight restrictions.

Build Integration and Physical Fit

The pack measures 88.1 x 89.9 x 22.7mm and weighs 456.0g, matching the factory compartment so no modifications are required. Certificates include ISO9001, RoHS, CE, UN38.3 and MSDS for regulatory compliance. Installers who cannot verify the exact part number against their cleaner should not purchase.

Highlights

  • Replaces original PB Max Swimming Pool battery exactly
  • 4V 3000mAh Ni-MH delivers 25.2Wh runtime
  • Built-in overcharge over-discharge and short-circuit protection
  • Certified ISO9001 RoHS CE UN38.3 and MSDS
  • Compact 88.1 x 89.9 x 22.7mm fits 456.0g weight

Specifications

BrandNi-MH
Model3000mAh
Specifications8.4
Battery Pack1 Year

Questions about this item

How do I install the 8.4V 3000mAh Ni-MH pack into my PB Max swimming pool cleaner?

Open the battery compartment, disconnect the old pack, match the connector polarity on the 7C2219MF replacement, insert the 88.1 x 89.9 x 22.7mm unit, and secure the latch; the step most people miss is verifying the connector clicks fully home before closing the cover.

What maintenance or replacement will this 25.2Wh battery need later?

Expect about one year of regular cycling before capacity drops enough to require a new 3000mAh pack; store it at roughly half charge during off-season and avoid full discharge to maximise that service life.

What limit appears first during a long cleaning run with this 456.0g pack?

The 3000mAh capacity typically depletes before thermal limits are reached, so runtime ends when the 8.4V output falls below the cleaner's minimum operating voltage.

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