HP SPARE BATTERY CS540 Model 85Q98AA

The HP 85Q98AA is a spare battery for the Poly CS540 headset, suitable for CS540 owners looking for a replacement or backup battery.

Recommended For

• HP Poly CS540/CS540A owners whose headset battery no longer holds a charge and who want to restore the existing headset rather than replace it.
• Office or call-center staff who use a compatible CS540 headset for desk-phone calls and need a replacement for reduced battery life.
• IT or office-equipment teams maintaining existing CS540 headsets who need the model-specific battery part rather than a complete headset.

Real-World Use Scenarios

• When a CS540 headset no longer holds enough charge for regular desk-phone calls, replace its battery to restore usable talk time without replacing the headset system; actual runtime depends on use and settings.
• For someone who spends much of the workday on a CS540, a fresh battery can help reduce interruptions caused by an aging battery; place the headset back on its charging base when it is not in use.
• If a CS540 gives low-battery tones during calls despite being charged, replacing a battery that has lost capacity may help; if the warning continues, the cause may be something other than battery age.
• In an office or home office that already uses a CS540 with a desk phone, replacing the battery is a practical way to keep the existing headset in service when its battery runtime declines.

Spec Summary