Plantronics 203079-01 Replacement Battery | Official Store
The Plantronics 203079-01 is a genuine lithium-ion rechargeable battery designed for compatible wireless headset systems. This replacement cell restores full functionality to your headset, delivering up to 8 hours of continuous talk time on a single charge.
We engineer every 203079-01 battery to meet original equipment specifications, ensuring safe operation and reliable performance across thousands of charge cycles. Whether you're replacing a depleted original battery or keeping a spare on hand for extended workdays, this OEM component provides the power consistency professional users depend on.
- Lithium-ion rechargeable cell rated at 3.7V
- Delivers up to 8 hours continuous talk time
- Compatible with select Plantronics wireless headset models
- Drop-in replacement—no tools required for installation
- Tested to withstand 500+ charge cycles
Compatible Headset Models
The Plantronics 203079-01 battery works with Savi W440, W740, and W745 wireless headset systems. Before ordering, verify your headset model number on the device label or original packaging—the 203079-01 is engineered specifically for these Savi-series units and will not fit earlier or unrelated product lines.
Installation takes seconds: power off your headset, remove the old battery compartment cover, lift out the depleted cell, and drop in the new 203079-01. The battery slides into place without connectors or cables—just align the contact points and replace the cover. Our design team built this simplicity into every aspect of the Savi ecosystem, so you spend less time managing hardware and more time on calls.
Charging & Runtime Details
A full charge cycle for the 203079-01 takes approximately 3 hours when seated in the Plantronics charging base. The battery meter on your headset displays real-time charge status, and an audible low-battery alert triggers when roughly 15 minutes of talk time remain.
Under typical office conditions—moderate volume, standard codec—you can expect 7 to 8 hours of active talk time per charge. Standby time extends to several days, so leaving the headset on your desk overnight won’t drain the cell. For users who rotate between a headset battery and a backup, this runtime pattern supports back-to-back shifts without interruption. We recommend keeping the spare battery in the charging cradle so it’s ready the moment you swap.
Battery Care & Longevity
Storage Best Practices
Store unused 203079-01 batteries at room temperature in a dry location. Extreme heat or cold degrades lithium-ion cells over time, so avoid leaving spares in vehicles or near windows. If you plan to shelf a battery for more than a month, charge it to approximately 50 percent capacity first—this voltage level minimizes stress on the internal chemistry.
Maximizing Cycle Life
While the 203079-01 is rated for 500+ full charge cycles, partial discharges followed by top-ups won’t harm the cell. Modern lithium-ion batteries lack the memory effect seen in older nickel-cadmium designs, so you’re free to recharge whenever convenient. That said, avoid letting the battery sit at zero percent for extended periods—recharge promptly after the low-battery warning to preserve long-term capacity.
Essential Headset Power Accessories
What people are saying
Common Questions About the Plantronics 203079-01 Battery
The Plantronics 203079-01 is compatible with Savi W440, W740, and W745 wireless headset models. Check the model number printed on your headset's battery compartment label or the original product box. If your device falls outside the Savi W400 or W700 series, this battery will not fit—contact our support team to identify the correct replacement part for your specific headset.
No. The Savi charging base requires the headset to be docked and powered off during charge cycles. If you need continuous availability, we recommend purchasing a second 203079-01 battery—keep one in the headset and one in the charger, then swap as needed. This approach eliminates downtime and ensures you always have a fully charged cell ready.
A completely depleted 203079-01 battery reaches full capacity in approximately three hours when placed in the official Plantronics charging base. The headset's LED indicator glows solid when charging is complete. Charging times may extend slightly if you're using a third-party base or a worn power adapter, so we recommend sticking with genuine Plantronics accessories for optimal results.
First, ensure the battery contacts inside your headset are clean and free of debris—wipe them gently with a dry cloth. Confirm the charging base is plugged into a working outlet and the power adapter LED is lit. If the battery still won't charge after 24 hours, it may be defective. Contact our warranty support team with your order number—we'll ship a replacement at no cost if the issue falls within the 90-day coverage period.
Yes. The Plantronics charging base includes automatic shut-off circuitry that stops current flow once the 203079-01 reaches full capacity. Leaving the battery docked overnight won't cause overcharging or damage. Many users keep their headset in the cradle at the end of each workday so it's ready first thing the next morning.
The 203079-01 is rated for a minimum of 500 full charge cycles under normal use conditions. In practice, most users see 18 to 24 months of daily service before noticing capacity degradation. Factors like ambient temperature, charge habits, and usage patterns all influence lifespan. When runtime drops below your acceptable threshold, simply order a fresh battery from this page.
Yes. Lithium-ion batteries should never be thrown in household trash. Most electronics retailers, office supply stores, and municipal recycling centers accept spent rechargeable batteries for safe disposal. Check your local regulations or visit a nearby drop-off location. We encourage all customers to recycle depleted 203079-01 batteries responsibly to minimize environmental impact.