Kastar 2 Pack Cordless Phone Battery for Panasonic HHR-P104 HHR-P104A
Quick take
This Kastar 2-pack is a rechargeable Ni-MH replacement battery set made for Panasonic cordless phones that use the Type 29 battery style. It is a good fit when your handset is losing runtime and you want ready-to-swap backups. The main caveat is that real-world battery life varies based on how heavily the phone is used and how it is charged and stored over time.
Pros and cons
Pros
- Includes 2 rechargeable Ni-MH batteries (handy for rotation or immediate replacement).
- Designed for Type 29 style 3.6V, 1000mAh replacements (matches Panasonic HHR-P104 and HHR-P104A compatibility list).
- Common buyer feedback highlights reliable performance and long service life after installation.
- Fit and charging are described as straightforward for supported Panasonic models.
Cons
- Only the listed Panasonic Type 29 compatible models should use these batteries, so double-check your handset’s battery type.
- Battery longevity is not guaranteed for every household use pattern, so heavy talk time may reduce runtime sooner.
What buyers think
Buyer-review evidence is generally positive and focused on day-to-day usefulness. Many comments describe the batteries working well in Panasonic cordless phones, charging as expected, and lasting long enough that the user can postpone another replacement for years. Some shoppers also specifically mention buying the 2-pack so they have a ready spare, which reduces downtime when the first battery starts to wear out. Overall, buyer-review evidence supports the idea that these are a practical replacement for the compatible Panasonic models, though detailed performance comparisons (for example, battery runtime hour-to-hour versus originals) are limited.
Key specs that matter for compatibility
When shopping for replacement cordless phone batteries, the most important factors are battery chemistry, voltage, and capacity, plus the match to your phone’s battery type.
- Battery type: Rechargeable Ni-MH
- Voltage: 3.6V
- Capacity: 1000mAh
- Pack size: 2 batteries
These batteries are listed for Panasonic cordless phone models including HHR-P104 and HHR-P104A, along with several other model numbers on the compatibility list. If your handset uses a different battery type, the phone may not charge correctly or may not fit properly, so it is worth confirming battery type before ordering.
Who this battery pack is best for
- Panasonic handset owners with an aging battery who want a compatible Ni-MH replacement.
- People who prefer having a backup, since the 2-pack lets you swap immediately or rotate batteries.
- Buyers focused on value, especially when replacing multiple batteries (or maintaining a spare) is cheaper than buying a new phone.
Who should avoid it
- If you cannot confirm your phone uses the Type 29 battery style, skip this pack and match the exact battery type for your model.
- If you need maximum longevity under heavy use, be aware that battery life naturally depends on charging habits and call volume, and buyer evidence suggests “years” for many users but not identical runtime for every household.
Buying guide: how to choose the right replacement
1) Match voltage and chemistry
Cordless phones are picky. Look for Ni-MH chemistry and 3.6V on both your existing battery and the replacement listing.
2) Confirm the capacity and battery type
1000mAh and the Type 29 style are key. If your current battery label differs, choose a pack that matches those details.
3) Consider the 2-pack advantage
If you have more than one handset, or you want a spare for later, a 2-pack reduces downtime and can be a simple way to keep your cordless phone system running smoothly.
Pros and cons recap
Buy the Kastar 2-pack if you have a compatible Panasonic cordless phone that uses the Type 29 style battery and you want a practical, ready-to-swap replacement set. Be careful if your phone’s battery type does not match, since compatibility is the make-or-break factor for fit and charging behavior.
Price and availability
Pricing can change by retailer and over time. Check the current cost and shipping details before purchasing.
FAQ
Is this battery compatible with Panasonic HHR-P104 and HHR-P104A?
Yes. It is listed as a replacement for Panasonic HHR-P104 and HHR-P104A, using the Type 29 battery style specifications (Ni-MH, 3.6V, 1000mAh). Still, it is smart to verify your handset’s battery type before installing.
What battery chemistry and voltage are these?
They are rechargeable Ni-MH batteries with 3.6V output and 1000mAh capacity.
Will a 2-pack be useful if only one handset is used?
It can be. A second battery is useful as a spare, so you can replace a weakening battery quickly without waiting for another order. It may also help if you have one handset but want to extend replacement intervals.
How long do these batteries last?
Battery life depends on your usage and charging routine. Buyer feedback tends to describe multi-year usefulness for compatible Panasonic handsets, but there is variation from household to household.
How do I know these are the right replacement for my phone?
Check your current battery label for the battery type, chemistry, voltage, and capacity. Then confirm that those details match what is listed for this replacement pack and your exact Panasonic model.
Specifications
| Product Title | Kastar 2 Pack Cordless Phone Battery for Panasonic HHR-P104 HHR-P104A Type 29, Panasonic KX-FG6550 KX-FPG391 KX-TG2388B KX-TG2396 and More |
|---|---|
| Category | Electronics > Accessories & Supplies > Telephone Accessories > Batteries |
| Brand | Kastar |
| Manufacturer | Kastar |
| Model Name | Panasonic |
| Model Number | 4326632315 |
| Number of Batteries | 2 AAA batteries required. |
| Warranty Description | 18-Month |
| Battery Cell Type | NiMH |
| Battery Capacity | 1000 Milliampere Hour (mAh) |
| Voltage | 3.6 Volts |
| Reusability | Rechargeable |
| Compatible Phone Models | Panasonic KX-FG6550 KX-FPG391 KX-TG2388B KX-TG2396 |
| Unit Count | 2 Count |
| Battery Weight | 3.5 Ounces |
| Item Dimensions | 2.13 x 1.26 x 0.44 inches |
| Antenna Location | Phone |
| Battery Cell Composition | NiMH |
| Recommended Uses For Product | Phone |
Recommended next
Verizon FiOS Frontier OEM Approved Replacement Battery GT12080-HG
The Verizon FiOS Frontier OEM Approved Replacement Battery GT12080-HG (GT12080-HG) is a 12V, 8Ah sealed lead-acid backup battery designed for compatible FTTH home phone systems. Buyer feedback highlights straightforward installation and a multi-year service life, with the main caveat being that you need the right battery model for your specific Verizon Fios equipment.
BT162342 BT262342 Cordless Phone Batteries Compatible with BT183342 BT283342 BT166342 BT266342 VTech CS6114 CS6419 CS6719 at&T EL52300 CL80111 (Pack of 2)
These Kruta cordless phone replacement batteries are designed for specific VTech and AT&T handset models, using 2 AAA NiMH cells (2.4V, 800mAh). A two-pack is a practical fix for households with multiple handsets, with buyers highlighting easy installation and good fit, though compatibility depends heavily on matching your original battery model.
TV · Ears Replacement Battery Original & Digital Headsets
A rechargeable NiMH replacement battery designed for TV Ears original and digital headsets, rated to deliver up to about 4 hours of use on a full charge. It’s a straightforward swap for owners whose headset batteries have died, with easy install and rapid charging mentioned in buyer feedback.
Uniden BBTY0651101 model BT1007 Nickel-Cadmium Rechargeable Cordless Phone Battery, DC review
Uniden BT1007 replacement cordless phone batteries come as a 2-pack (2.4V, 500mAh) designed for specific Uniden handset/base models. Buyers report easy installation, reliable charging, and long-term continued use, with one caveat: some packaging/label details may not perfectly match the advertised capacity.