Cochlear Nucleus 5 Spare Parts Guide (CP810 & CP802): Care, Fixes and Where to Buy

Cochlear Nucleus 5 Spare Parts keep a Cochlear Nucleus 5 sound processor working long after newer models arrive. This guide explains the parts that wear out on the CP810 and CP802, how to look after them, how to fix the most common problems, and where to buy compatible replacements worldwide.

Cochlear Nucleus 5 sound processor at a glance

Why Nucleus 5 spare parts matter now

The Nucleus 5 has been followed by three newer generations, yet many people still wear one every day. Upgrading a processor usually depends on a clinic, an insurer or a health system, so a working Nucleus 5 often stays in use for years.

The challenge is parts. As newer models take over, Nucleus 5 batteries, chargers, cables and microphone covers become harder to find locally. Keeping a few spares at home is the easiest way to avoid days without sound.

Cochlear Nucleus 5 Spare Parts explained

These are the cochlear nucleus 5 spare parts people replace most often, what each one does, and when to change it.

Rechargeable battery

The battery module powers the processor. Rechargeable modules lose capacity with every charge, so most users replace them every one to two years. See the Cochlear N5 battery.

Battery charger

A dual charger lets you charge two batteries at once. Ours also works as a power bank for charging on the go. See the Cochlear N5 battery charger.

Coil cable

The cable joins the processor to the coil. It bends thousands of times a day and is the most common cause of sound dropping out. Available in 8, 11 and 28 cm. See the Cochlear N5 cable.

Microphone covers

Small covers protect the microphones from dust and moisture. Blocked covers make sound muffled. See the CP802 microphone cover.

How to check your model number

Both Nucleus 5 models share the same family of parts, but always check the exact number printed on your processor.

• Remove the battery and look at the processor body for a code starting with CP.
• Write the code down before you order. Parts for the Nucleus 6 or Nucleus 7 are a different design, so do not mix them.
• Not sure? Send us a clear photo on WhatsApp and we will tell you which Nucleus 5 parts are compatible.

Daily care routine

• Wipe the processor, coil and cable with a soft, dry cloth every evening.
• Dry the processor overnight, especially after sport or hot, humid days. A hearing aid dryer makes this easy.
• Store it in its case, away from heat, direct sun and small children or pets.
• Check the cable and microphone covers once a week for cracks, dirt or loose plugs.
• Keep a small spare kit: a charged battery, a spare cable and a pack of covers.

Battery care and charging

Rechargeable batteries are the Nucleus 5 part that ages fastest, because every charge cycle wears them a little. To get the most from them:

• Charge them fully before first use and use a Nucleus 5 charger.
• Rotate two batteries so each one is used and charged evenly.
• Do not leave batteries in a hot car or on a sunny window sill.
• If you will not use a spare for a few weeks, store it partly charged.
• Replace a battery when it no longer lasts your normal day. Our battery life guide explains the signs.

How to change the coil cable

A worn coil cable is the most common reason a Nucleus 5 cuts in and out. Changing it takes about a minute:

1. Take off the processor and gently unplug the old cable from the coil and the processor. Pull the plug, never the wire.
2. Choose a new Nucleus 5 cable of the same length as the old one.
3. Push the new cable firmly into the coil, then into the processor.
4. Put the processor on and move your head gently. Sound should stay steady.

Read more in our cable replacement guide.

How to change the microphone covers

Microphone covers keep dust, sweat and moisture away from the Nucleus 5 microphones.

1. Take off the processor and remove the battery.
2. Gently lift out the old cover without pushing anything into the microphone opening.
3. Press the new cover into place until it sits flush.
4. Refit the battery and check the sound.

Most users change covers about every three months, or sooner if sound seems muffled. Shop Nucleus 5 microphone covers.

Troubleshooting: which part to replace

If the problem continues after changing the part, contact your hearing clinic.

Buying Nucleus 5 parts worldwide

Nucleus 5 parts are harder to find now that newer processors are on sale. CochlearSpare keeps compatible Nucleus 5 parts in stock and ships them worldwide:

• Orders are dispatched within 24–48 hours.
• Delivery usually takes 12–22 business days, with duties included for most countries.
• Shipping is free on orders over $250, so a battery plus a spare cable and covers often ships free.
• Send us a photo on WhatsApp and we confirm the right part before you pay.

Browse all Nucleus 5 parts.

Nucleus 5 FAQ

Is the Nucleus 5 still supported?

The Nucleus 5 has been replaced by newer models, but many users still wear it. Compatible batteries, chargers, cables and covers remain available from CochlearSpare.

Does a Nucleus 6 battery fit the Nucleus 5?

Do not assume it does. Order parts listed for the CP810 or CP802, or send us a photo to check.

How often should I replace the coil cable?

When sound starts cutting in and out, or when the cable looks cracked or loose. Many users keep a spare cable at all times.

Do you ship Nucleus 5 parts to my country?

We ship worldwide. Orders leave within 24–48 hours and shipping is free over $250.

Need help with your Nucleus 5? Message us on WhatsApp and we will help you choose the right part.