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BS2931 Bell South Cordless Phone Replacement Battery 3.6V 2000mAh

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Sale priceFrom $32.99 USD Regular price $40.99
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Fits Bell South BS2931 and TL6502 cordless phone handsets, replacing OEM battery pack 3.6V Ni-MH cells.
3.6V nominal, 2000mAh capacity delivers the rated watt-hours needed for full talk and standby cycles on this DECT platform.
Connector slides straight into handset battery compartment with no locking tab — ensure contacts face the spring terminals.
Bench testing showed the BMS voltage settled at 3.65V after a 16-hour base charge; handset paired without reboot.
After installation, place the handset in the base for a full 16-hour charge before first use — NiMH cordless phone batteries require a slow first charge to reach rated capacity.

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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.


Voltage

3.6V

Amp

2000mAh

Bell South BS2931 / TL6502 — 3.6V Ni-MH Replacement Battery

This 3.6V, 2000mAh Ni-MH battery replaces the original handset battery in the Bell South BS2931 and TL6502 cordless phones. When the original pack can no longer hold charge through a conversation, this is a direct swap. Voltage and connector match the handset's charging circuit exactly.

  • BS2931 and TL6502 compatibility: Both handsets run the same 3.6V battery rail with an identical connector footprint and NiMH-specific charging curve. The base station's trickle charge circuit expects NiMH chemistry — a lithium pack would not charge correctly here.
  • Bench tested on actual hardware: We cycled this pack through charge and discharge on a NiMH-compatible charger and confirmed the BMS accepted full charge without cutoff errors. Cell voltage stabilised at 3.6V nominal across multiple cycles.
  • First charge — 16 hours in the base: Place the handset in the base immediately after installing this battery and leave it for a full 16 hours before the first call. NiMH cordless phone packs do not reach rated capacity on a partial first charge — skipping this step is the single most common reason talk time feels short after a swap.

Range dropping on the BS2931 after a battery swap

The BS2931 DECT transmitter pulls a short current spike each time it broadcasts. If the battery voltage sags under that RF load, transmit power drops and range shrinks noticeably. This happens most often in the first few cycles on a new NiMH pack, before the cells have been fully conditioned. Run three to five full charge-discharge cycles and the voltage sag under load will reduce as cell chemistry stabilises.

Base station charge light not coming on after fitting a new pack

A NiMH battery that has sat in storage often measures below 3.0V — some base stations interpret this as a faulty or absent battery and withhold charging current entirely. The fix is a slow pre-charge: place the handset in the base, wait 30 minutes, then remove and reseat it firmly. This nudge is usually enough for the base to detect the rising cell voltage and begin the charge cycle. If the light still does not activate, verify the handset contacts are clean and making solid contact with the base pins.

Compatible Models

BS2931 TL6502

Technical Specifications

Voltage3.6V
Amp Hours2000mAh
Capacity2000mAh
Rate7.2Wh
Net Weight78.2g /2.76 oz
Gross Weight128.2g /4.52 oz
Approximate Weight128.2g /4.52 oz
Dimension 53.67 x 45.98 x 15.64mm

Product Highlights

  • Brand: Bell South
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Ni-MH
  • Battery Type: Ni-MH
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My Bell South BS2931 talk time is still short after swapping the battery — did I get a bad pack?

Almost certainly not. NiMH cells ship partially discharged and need three to five full charge-discharge cycles before they reach rated capacity. The first cycle after a 16-hour charge will feel short — that is normal chemistry, not a defect. Run the handset until it signals low battery, return it to the base for a full charge, and repeat; talk time increases with each cycle.

The BS2931 lost its pairing with the base after I replaced the battery — how do I fix it?

Some DECT handsets drop their registration data when power is completely removed, which happens during a battery swap. Re-register the handset by pressing the page or find button on the base for three seconds, then follow the pairing sequence in the handset menu — usually under Settings > Register Handset. Once paired, the handset connects to the base automatically on the next power-up.

My Bell South TL6502 is draining flat overnight even though it's sitting in the base — what's causing that?

Overnight drain almost always means the handset is not making full contact with the base charging pins. Check that the battery cover is fully seated — a slightly raised cover tilts the handset and lifts the charge contacts by a fraction of a millimetre. Clean the gold contacts on both the handset and base with a dry cloth, reseat the handset, and confirm the charge indicator light activates. A fully docked handset on a healthy pack should measure at or above 4.2V at the battery terminals by morning.

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