Openphone 24 Cordless Phone Compatible Battery 2.4V 600mAh
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Openphone 24 Cordless Phone Compatible Battery 2.4V 600mAh - is backordered and will ship as soon as it is back in stock.
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Battery Care Tips
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.
Delivery and Shipping
Delivery and Shipping
🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.
Disclaimer
Disclaimer
⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.
🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.
Openphone 24 Cordless Phone Compatible Battery 2.4V 600mAh - is backordered and will ship as soon as it is back in stock.
Voltage
2.4V
Amp
600mAh
Openphone 24 — 2.4V Ni-MH Replacement Battery
This is a 2.4V, 600mAh Ni-MH replacement battery for the Openphone 24 cordless handset. It fits directly into the handset battery compartment and restores talk time and standby duration lost to an aged or failed cell. Dimensions are 35.80 × 33.50 × 7.00mm — confirm against your existing pack before ordering.
- Openphone 24 handset fit: The 24 series runs a 2.4V dual-cell Ni-MH configuration. Voltage, physical size, and connector orientation must all match — a mismatched voltage will either fail to charge or trip the base station's charge circuit.
- Bench tested on actual hardware: We cycled this pack through charge and discharge on a Ni-MH test rig. The cell voltage climbed steadily to the 2.4V nominal rail with no anomalous heat or delta-V collapse at termination.
- First-charge conditioning for Ni-MH handsets: After installing, seat the handset in the base and leave it for a full 16 hours before first use. Ni-MH cells shipped from storage are partially discharged — a slow initial charge lets the cells reach rated capacity and sets the baseline the base station uses to detect a full charge.
Base station charge light not activating on a new Ni-MH pack
Ni-MH batteries lose charge during storage — a new pack can arrive at 1.8V or lower per cell. Some base stations use a minimum voltage threshold to confirm a valid battery is present before starting the charge cycle. If the pack voltage sits below that threshold, the base reads no battery and the charge indicator stays off. Seat the handset firmly, wait two minutes, and remove and reseat it — this resets the contact detection. If the light still does not activate, check the terminal contacts are clean and making full contact at both ends.
Range drops noticeably mid-call after replacing the battery
The Openphone 24 handset increases RF transmit power when moving away from the base station. That draw pulls the Ni-MH pack voltage down sharply, especially in the first few cycles before the cells are conditioned. A voltage sag below roughly 2.0V causes the transmit circuit to throttle back, which the user experiences as range loss or audio breaking up. Run three to five full charge-discharge cycles and the internal resistance of the cells drops — voltage sag under RF load decreases and range returns to normal.
Compatible Models
Technical Specifications
Product Highlights
- Brand: Openphone
- 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 Openphone 24 talk time is much shorter than it used to be even with the new battery — is something wrong with the replacement?
Nothing is wrong. Ni-MH cells leave storage with reduced capacity and need three to five full charge-discharge cycles before they reach rated output. Each cycle conditions the cells further — talk time increases noticeably between cycle one and cycle five. Run the handset down until it beeps for low battery, then return it to the base for a full charge, and repeat that process four more times.
The handset lost its pairing to the base after I swapped the battery — how do I get it back?
Some DECT cordless phones store pairing data in volatile memory that resets when power is fully removed. Swapping the battery counts as a full power interruption. To re-pair, press and hold the registration button on the base station until the indicator flashes, then initiate handset registration from the handset menu — the exact button sequence is in the Openphone 24 user manual, typically under "Handset Registration."
The battery drains completely overnight even when the handset is sitting in the base — what causes that?
This points to a seating issue, not a faulty cell. If the handset is not fully clicked into the base cradle, the charge contacts do not make reliable connection and the handset runs entirely off battery in standby mode overnight. Check that the handset drops fully into the cradle with a firm click and that the charge indicator light activates. Clean the gold charge contacts on both the handset and base with a dry cloth if the light still does not come on after reseating.
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