Powering a cordless phone with a reliable 3.6V, 400mAh Ni-Cd battery ensures longer talk times and dependable performance. The options below cover popular replacements compatible with common VTech and AT&T/Lucent handsets, including BT-17333 and BT27333 packs. This guide compares five high-demand models, highlighting capacity, chemistry, compatibility, and replacement ease so you can choose a trusted option for standard landline handsets.
| Brand | Name | Chemistry | Compatibility | Pack Size |
|---|---|---|---|---|
| QBLPOWER | BT-17333 / BT27333 Handset Battery (Pack of 2) | Ni-Cd | VTech CS5111/CS5113, BT-17333/BT-27333 family | 2 |
| GEILIENERGY | BT-17333 / BT-27333 Handset Battery (Pack of 1) | Ni-Cd | BT17333/BT27333 family; BT17233/BT27233; CS5121 | 1 |
| Ultralast | AT&T-Lucent 4051 Cordless Phone Battery 3-1/2AA | Ni-Cd | AT&T/ Lucent legacy models; 3-1/2AA class | 1 |
| OXWINOU | BT-17333 / BT-27333 Handset Battery (Pack of 2) | Ni-Cd | BT17333/BT27333/BT17233 family; AT&T telephones | 2 |
| VANBOW | BT17333/BT27333 Cordless Phone Battery (Pack of 2) | Ni-Cd | BT17333/BT27333/BT17233 family; 2/3AA 3.6V | 2 |
Note: All listed options are 3.6V Ni-Cd chemistry with roughly 400mAh capacity, designed to replace standard cordless phone batteries in compatible models. Always verify the exact part numbers on your device before purchasing, and ensure proper disposal of old Ni-Cd cells in accordance with local regulations.
QBLPOWER BT-17333 BT-27333 Battery Pack (2-Pack)
Voltage: 3.6V. Capacity: 400mAh. Chemistry: Ni-Cd. Type: 2/3AA format. This pack is designed as a replacement for BT17333/BT27333 and compatible with related models such as BT-17333/BT27333 family and VTech CS5111/CS5113. The battery is marketed for cordless phones, offering an economical two-pack solution for households replacing aging handsets or multiple handsets within the same model family. Replacement part numbers include BT17333/BT2733. Be sure to check dimensions and connector alignment for your device.
GEILIENERGY BT-17333 / BT-27333 Battery
Voltage: 3.6V. Capacity: 400mAh. Chemistry: Ni-Cd. Color: White. Compatible with BT17333/BT27333 and related models like BT17233, BT27233, BT163345, and BT263345 series. This replacement is positioned for AT&T and VTech-style cordless phones that rely on 2/3AA Ni-Cd packs. The listing emphasizes compatibility with a broad range of older handset models and similar 3.6V packs. Always confirm model numbers on your device to ensure a proper fit and secure electrical contact with the terminals.
Ultralast AT&T-Lucent 4051 Battery (3-1/2AA)
Type: Ni-Cd, 3.6V, 400 mAh. This battery is marketed as a replacement for multiple legacy models including AT&T 4051 and Lucent 2422/4051 families, with broad cross-compatibility claims. It is described as an ultra hi-capacity option within the 3-1/2AA size class, suitable for older cordless phones that use nickel-based rechargeable packs. Prospective buyers should double-check connector orientation and device compatibility, as legacy models may use varying JST-style connections.
ATC Cordless Battery for BT-17333 / BT-27333 (3.6V, 400mAh)
High-quality Ni-Cd replacement battery designed to meet or exceed the performance of the original. It targets 3.6V, 400mAh capacity and is marketed as a universal option for BT-17333, BT-27333 and a broader set of cordless handset models like CS2111 and other 2/3AA configurations. The features emphasize reliability and standard performance expectations for fixed-line consumer devices, making it a practical option for home and small-office setups seeking straightforward replacements.
OXWINOU 2-Pack BT-17333 / BT-27333 Battery
Voltage: 3.6V. Capacity: 400mAh. Chemistry: Ni-Cd. The pack covers BT17333/BT27333/BT17233/BT27233/BT163345 models and similar 2/3AA formats. It notes compatibility with AT&T telephones in addition to VTech-style devices, indicating broad cross-brand applicability. This option emphasizes Ni-Cd chemistry and a standard replacement profile, suitable for homes with multiple compatible handsets or spare batteries kept on hand for quick swaps.
Power Gear 3.6V 400mAh Battery Pack
Product Type: Battery. Replacement focus is on 3.6V 400mAh packs for cordless phones, featuring nickel-metal hydride (Ni-MH) chemistry, though the listing mentions Ni-MH rather than Ni-Cd. The dimensions and compatibility notes suggest it may fit similar form factors in the 3.6V class and 2/3AA sizing. Buyers should verify the chemistry and fit with their handset model to ensure proper charging behavior and long-term reliability.
Buying Guide
Key purchase considerations for 3.6V 400mAh cordless phone batteries:
- Battery chemistry and compatibility: Ni-Cd chemistry is common for older handsets and offers robust performance, but some models may prefer Ni-MH or a different size class. Confirm model numbers (BT17333, BT27333, BT17233, CS2111, etc.) and the device’s connector type before buying.
- Voltage and capacity: A 3.6V, 400mAh rating matches many legacy cordless phones. Higher capacity may extend standby time, but ensure the device can safely accept it without overheating or overcharging.
- Pack size: Packs come in single or multi-pack configurations. If you have multiple handsets, a 2-pack can reduce future replacement costs and downtime.
- Fit and form factor: Common sizes include 2/3AA or 3-1/2AA. Verify the physical dimensions and connector alignment to avoid fitment issues.
- Replacement compatibility: Many listings claim broad compatibility across VTech, AT&T, Lucent, and other brands. Use exact model numbers (BT-17333, BT27333, BT17233, etc.) as the primary compatibility criterion.
- Quality and safety: Look for reputable brands with positive reviews, and ensure safe handling and disposal of Ni-Cd batteries according to local regulations.
- Warranty and return policy: Since batteries have variable lifespans, check if the seller offers a warranty or return option if performance is not up to expectations.
For users seeking straightforward replacements, focusing on packs explicitly labeled for BT-17333/BT27333 and related 2/3AA configurations offers the most reliable compatibility. If your handset is part of a broader legacy line, verify cross-compatibility notes and connector types across the product descriptions before purchasing.