Panasonic

Panasonic HHR-P402A Cordless Phone Battery Replacement

Name: Panasonic HHR-P402A Cordless Phone Battery Replacement
Brand: Panasonic
SKU: HHR-P402A

★★★★★3.9 (113 reviews)

1000mAh

Genuine Panasonic Ni-MH replacement battery delivering 1000mAh of reliable power for select cordless phones.

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Overview

The Panasonic HHR-P402A is an OEM Nickel-Metal Hydride replacement battery built specifically for select Panasonic cordless telephones. Rated at 3.6V and 1000mAh, it matches the original factory battery specifications, ensuring your phone charges correctly in its cradle and delivers the talk time and standby performance you expect. Because it's a genuine Panasonic part, the connector, cell configuration, and voltage are guaranteed to be compatible—eliminating the guesswork that sometimes comes with third-party alternatives.

Installation is simple: open the battery compartment on the handset, disconnect the old battery, plug in the HHR-P402A, and place the phone back on its charging base. Ni-MH chemistry supports hundreds of charge-discharge cycles, making this a cost-effective way to extend the life of a cordless phone rather than replacing the entire handset. For households or offices still relying on landline cordless systems, keeping a spare HHR-P402A on hand means you're never caught without a working phone.

Key Features

For Panasonic KX-TG2205/2215/2217/2227/2237/2247/2257/2267/2287 and KX-TGA270S

Ni-Mh

1000mAh/3.6V

Specifications

Brand

Panasonic

Model

HHR-P402A

Battery Type

Cordless Telephone Replacement Battery

Chemistry

Ni-MH (Nickel-Metal Hydride)

Voltage

3.6V

Capacity

1000mAh

Compatibility

Select Panasonic Cordless Telephones

Pros & Cons

👍 Pros

Genuine Panasonic OEM battery ensures full compatibility and reliable charging with supported handsets.
1000mAh capacity provides solid talk time for everyday cordless phone use.
Ni-MH chemistry allows hundreds of recharge cycles before capacity degrades.
3.6V output matches original factory specifications so phone performance is unchanged.
Drop-in replacement requires no tools or technical knowledge to install.

👎 Cons

Compatible only with select Panasonic cordless models, limiting its usefulness across brands.
Ni-MH batteries gradually lose capacity over time even when not in use.
1000mAh is modest compared to some aftermarket replacement batteries offering higher capacity.
No battery level indicator included, so remaining charge depends on the phone's own display.

Frequently Asked Questions

What cordless phone models is the HHR-P402A compatible with?

The HHR-P402A is designed for select Panasonic cordless telephones. Check your phone's manual or battery compartment for the original battery part number to confirm compatibility.

How long does the HHR-P402A battery last on a full charge?

Talk time and standby duration depend on the specific phone model and usage patterns, but the 1000mAh capacity is designed to provide a full day of typical cordless phone use between charges.

Is the HHR-P402A a rechargeable battery?

Yes, it uses Nickel-Metal Hydride (Ni-MH) technology and recharges automatically when placed in your cordless phone's charging cradle.

Does this battery come pre-charged?

Ni-MH batteries typically ship with a partial charge. For best initial performance, place the battery in the cradle and allow a full charge cycle before first use.

Can this battery replace other Panasonic battery models like the HHR-P104?

No. The HHR-P402A has a specific connector and voltage configuration. Always match the exact part number to avoid compatibility issues or damage to your phone.