Everything for Back to School — and then someShop now

Main Content
Skip to contentGo to Product Search
Main Content

Batteries For AT&T Cordless Phones

If you have an AT&T cordless phone, there are now faster NiMH batteries available that can charge your AT&T cordless phone in about three hours. Browse the top-ranked list of batteries for at&t cordless phones below along with associated reviews and opinions. 

Read More
Results
Main Results
  1. HQRP - Cordless Phone Battery 2.4 V 850 mAh Ni-MH for VTech BT183348 BT283348 Replacement

    SKU: J3ZSLCTK34

    Product Description

    A rechargeable Ni-MH battery pack delivering 2.4 V and 850 mAh for compatible cordless phones.
    See all Cordless Phone Batteries
    Your price for this item is $10.40
  2. UltraLast - Nickel-Metal Hydride Battery for Cordless Phones

    SKU: JXKLJ9TXZ9

    So thankful that Best Buy was able to determine what battery was needed for my landline handset, which...Phone works great. Huge relief.

    Product Description

    A rechargeable green nickel-metal hydride battery delivering 2.4 volts and 750mAh for cordless phones.
    See all Cordless Phone Batteries
    Your price for this item is $25.51
  3. HQRP - Cordless Phone Battery Pack 2-Pack 2.4 V 800 mAh NiMH for VTech CS6328 CS6329 LS6325

    SKU: J3ZSLCTK42

    Product Description

    A rechargeable NiMH battery 2-pack delivering 2.4V, 800mAh power for compatible VTech cordless phones.
    See all Cordless Phone Batteries
    Your price for this item is $14.95
  4. HQRP - Cordless Phone Battery 3.6 V 800 mAh Ni-MH Replacement for AT&T / Lucent Model 102 103

    SKU: J3ZSL2GWY3

    Product Description

    A rechargeable 3.6V 800mAh Ni-MH battery that restores reliable performance to compatible cordless phones.
    See all Cordless Phone Batteries
    Your price for this item is $12.40
  5. HQRP - Battery for Siemens V30145-K1310K-X444 Gigaset SL78H SL780 SL785 SL788 SL400 SL400A, SL400H, X656, V30145-K1310-X445

    SKU: J3ZSLCVWC4

    Product Description

    A rechargeable Li-Ion battery delivering 3.7V and 830mAh for restoring reliable cordless phone performance.
    See all Cordless Phone Batteries
    Your price for this item is $14.40
  6. AT&T - DECT 6.0 Expandable Cordless Phone System, Digital Answering, Caller ID, Call Waiting, Large Buttons, 3 Handsets - White

    SKU: JX8RR845GS

    Product Description

    A white cordless phone system with three handsets, large buttons, digital answering, and caller ID features.
    See all Cordless Phone Systems
    Your price for this item is $103.99
  7. UltraLast - Nickel Metal Hydride Battery for Plantronics Calisto Pro

    SKU: JXKLJ9TXC5

    Product Description

    A rechargeable black battery with 2.4V and 750mAh capacity, compatible with select cordless phones.
    See all Cordless Phone Batteries
    Your price for this item is $31.75
  8. HQRP - Cordless Phone Battery 3.6 V 700 mAh NiMH AAA Pack for VTech DS4121, DS4122, i6717, i6725

    SKU: J3ZSLCTKZS

    Product Description

    A rechargeable NiMH AAA battery pack delivering 3.6V and 700mAh for reliable cordless phone performance.
    See all Cordless Phone Batteries
    Your price for this item is $11.40
  9. HQRP - Phone Battery for Vtech BT183482 BT283482 89-1348-01 LS6405 LS6426 LS6475 LS6425 LS6425-2 2.4V 400mAh NI-Mh

    SKU: J3ZSL2SZV9

    Product Description

    A rechargeable Ni-MH battery delivering 2.4V and 400mAh for restoring cordless phone performance.
    See all Cordless Phone Batteries
    Your price for this item is $12.40

FAQ

Our selection includes batteries designed for a wide range of AT&T cordless phone models. Please refer to your phone’s model number and check the compatibility information on each product page to ensure a proper fit.

To find the right battery, locate your phone’s model number, usually found under the handset battery compartment or in the user manual. Use this number to filter or search for compatible batteries on our product listing page.

Yes, replacing the battery in your AT&T cordless phone is typically a simple process. Open the battery compartment, remove the old battery, and insert the new one, ensuring the connectors align properly. Always consult your phone’s manual for specific instructions.

Most replacement batteries for AT&T cordless phones come partially charged, but it’s recommended to fully charge the new battery before first use for optimal performance.

It’s generally recommended to replace your cordless phone battery every 1 to 2 years, or when you notice reduced talk time, shorter standby time, or frequent charging is needed.