Peugeot Key Fob Battery Replacement – Buy Key Fob for Peugeot

If your Peugeot key fob has started working only at close range, needs repeated button presses, or triggers a low key battery message, the fix is usually simple: replace the battery inside the remote. Most Peugeot key fobs use a CR1620 or CR2032 coin battery depending on the key style and model, and the job usually takes only a few minutes with a small screwdriver or pry tool. This guide covers what battery a Peugeot key fob uses, how to choose the right replacement for your specific model, how to replace it step by step, and when a full replacement fob makes more sense than just fitting a fresh battery.

• Table of Contents:
• Buy Key Fob Battery Replacement for Peugeot
• Peugeot Key Fob Battery Replacement by Model
• How to Replace a Peugeot Key Fob Battery
• Common Peugeot Key Fob Problems
• Battery Replacement vs New Key Fob for Peugeot
• Peugeot Key Fob FAQ

Buy Key Fob Battery Replacement for Peugeot

Buying the right Peugeot key fob battery starts with the battery code already installed inside your remote. For many Peugeot flip keys and smart keys, the correct battery will be either a CR1620 or a CR2032. Older Peugeot keys often use the slimmer CR1620, while many newer Peugeot key fobs use CR2032, but the safest approach is still to open the fob and match the exact number on the old battery. If you want to compare options before opening the case, you can browse Peugeot key fob battery replacements, CR1620 replacements for Peugeot key fobs, and CR2032 replacements for Peugeot key fobs.

• CR1620 Peugeot key fob battery: This is a very common battery for many Peugeot flip-key remotes and older-style fobs. It is thinner than a CR2032, so it should only be replaced with the exact same size unless your old battery shows a different code. A good place to compare options is CR1620 batteries that fit many Peugeot remotes. Typical price: about $4 to $10 for a small multi-pack.
• CR2032 Peugeot key fob battery: Many newer Peugeot smart keys and newer-generation fobs use CR2032. It offers more capacity than CR1620, but it is also thicker, so it is only the right choice if your existing battery matches. Browse CR2032 Peugeot-compatible replacements if your current battery is marked CR2032. Typical price: about $4 to $12 for a multi-pack.
• Name-brand battery packs: If you want better shelf life and more consistent performance, compare high-quality options such as Panasonic CR1620, Energizer CR2032, or similar replacements. Typical price: about $5 to $14 depending on brand and pack size.
• Peugeot key shell and battery kits: If the casing is cracked or the buttons are worn, some owners buy a battery and shell kit together so they can refresh the whole remote at once. Compare Peugeot key shell and battery kits if the electronics still work but the housing is badly worn. Typical price: about $8 to $25.

Peugeot Key Fob Battery Replacement by Model

• Peugeot 107 key fob battery replacement: Many 107 remotes use a small coin battery and older key styles can differ from newer Peugeot designs, so confirming the number on the old battery before ordering is especially important.
• Peugeot 108 key fob battery replacement: Some 108 electronic and proximity-style remotes commonly use CR2032. If your key fob shape matches the newer rounded remote style, double-check the battery marking inside before buying. You can compare Peugeot 108 battery options.
• Peugeot 206 and 207 key fob battery replacement: These models are often associated with the older Peugeot flip-key design, and many owners end up needing a CR1620. If your buttons still work intermittently, a fresh battery is often enough to restore normal range.
• Peugeot 208 key fob battery replacement: Many 208 key fobs use CR2032, especially newer key shapes. If you want to line up a replacement before opening the remote, compare Peugeot 208 replacement battery options.
• Peugeot 2008 key fob battery replacement: The 2008 often shares key styles with the 208 and other newer Peugeot models, so CR2032 is common, but the original battery should still be your final reference.
• Peugeot 307 and 308 key fob battery replacement: Many 307 remotes are older-style and often use CR1620, while many 308 keys are associated with CR2032. If you own a 308, it helps to compare Peugeot 308 battery replacements before you open the case.
• Peugeot 3008 and 5008 key fob battery replacement: These are among the most commonly searched Peugeot battery replacements, and newer fobs often use CR2032. A weak battery in these models may cause reduced lock range or delayed keyless recognition.
• Peugeot 407 and 508 key fob battery replacement: Depending on year and fob shape, these may use either CR1620 or CR2032. Always match the battery code inside the fob rather than relying only on the vehicle name.
• Peugeot Partner, Rifter, Expert, Traveller, and Boxer key fob battery replacement: Van and MPV owners can run into several remote variations, especially across work and passenger trims, so the safest approach is still to inspect the current battery first. If you need a direct search, compare Peugeot Partner battery options or the matching model search.

To choose the right replacement key fob battery for Peugeot, focus on the exact key style and the number printed on the old battery instead of assuming every model uses the same cell. Peugeot has used multiple remote designs across the 107, 207, 208, 308, 3008, 5008, and commercial-vehicle range, and even similar-looking keys can use different battery sizes. The best replacement is the same battery code already in the fob, a fresh lithium coin cell from a reliable brand, and a shell or case kit only if the buttons or housing are worn. If your casing is damaged, it helps to compare Peugeot replacement key fob shells at the same time.

How to Replace a Peugeot Key Fob Battery

1. Gather the tools and battery first. You will need the correct Peugeot replacement battery, your key fob, and a small tool to open the case. Most owners use a small flathead screwdriver, a precision screwdriver set, or plastic pry tools if you want to reduce the chance of marking the case.
2. Release the emergency key if your Peugeot fob has one. Many Peugeot flip keys and smart keys have a release button for the mechanical key blade. Remove that first so you can access the opening seam more easily.
3. Locate the case seam. On many Peugeot key fobs, the case separates near the emergency-key slot or along the rear seam. Insert the flat tool gently and twist a little rather than trying to force the whole case apart at once.
4. Open the fob carefully. Work slowly around the edge until the cover lifts away. Do not force the plastic clips, because Peugeot key fob housings can crack if pried too aggressively.
5. Check the old battery number before removing it. Look for the code printed on the battery, such as CR1620 or CR2032. This is the best confirmation that your replacement is correct.
6. Remove the old battery gently. Use your fingernail, a non-metal pry tool, or the edge of the screwdriver to lift the battery out without bending the battery clip or damaging the contact points.
7. Install the new battery with the same orientation. Match the positive and negative sides exactly as they were before. On most coin cells, the marked face is the positive (+) side. If the battery is upside down, the Peugeot remote will not work.
8. Inspect the contacts and buttons. Before closing the case, check for dirt, corrosion, or a rubber button pad that has shifted out of place. A clean, dry microfiber cloth is usually enough to tidy the inside.
9. Snap the case back together evenly. Line up both halves and press around the edge until all clips are secure. Reinsert the emergency key if you removed it.
10. Test the remote fully. Try lock, unlock, boot release if equipped, and any keyless entry functions. If the Peugeot still does not respond, reopen the case and verify battery size, orientation, and contact pressure.

Common Peugeot Key Fob Problems

• Peugeot key fob still does not work after replacing the battery: The most common reasons are the wrong battery size, incorrect polarity, or poor contact between the battery and retaining clip. Recheck whether the original battery was CR1620 or CR2032.
• Very short locking or unlocking range: This usually points to a weak battery, a poor-quality replacement, or battery contacts that are dirty or not pressing firmly enough. A fresh, name-brand replacement battery often helps if the size is correct.
• Buttons feel worn, sticky, or collapsed: In many Peugeot remotes, this is a shell issue rather than an electronics problem. A replacement shell may restore normal button feel without the need for a fully new programmed key.
• Case will not close after the new battery is installed: This often happens when a thicker battery is used by mistake, especially if a fob designed for CR1620 is fitted with a CR2032. Never force the housing shut.
• Intermittent keyless start or keyless entry recognition: If your Peugeot sometimes recognizes the key and sometimes does not, the battery may be weak even if the buttons still appear to work.
• Battery goes flat again very quickly: That can point to a low-quality battery, poor battery storage before purchase, or an internal fault in the fob draining the battery faster than normal.
• Mechanical key works but remote buttons do not: That usually suggests the remote battery, internal board, or switch contacts need attention rather than the vehicle lock itself.

Battery Replacement vs New Key Fob for Peugeot

For most Peugeot owners, replacing the battery is the cheapest and most sensible first step. If the remote range has dropped, the buttons only work occasionally, or the car shows a low-key warning, a fresh replacement battery is usually all that is needed. This is especially true when the key still unlocks the car sometimes and the shell is still in decent condition.

A full new key fob for Peugeot is more likely to be necessary when the housing is broken, the circuit board is damaged, the remote has stopped responding entirely even with the correct new battery, or the buttons are physically failing. In some cases, a replacement shell is enough if the electronics are still working. But if the fob itself has failed, a full replacement may require cutting the emergency key and programming the new remote to the car. That makes battery replacement the best first step before paying for a brand-new Peugeot key.

Peugeot Key Fob FAQ

What battery does a Peugeot key fob use?

Most Peugeot key fobs use either a CR1620 or CR2032 coin battery, depending on the key design and model. The most reliable way to confirm the correct one is to open the fob and read the battery code printed on the old cell.

How do I know if my Peugeot key fob battery is dying?

Common signs include shorter remote range, needing to press buttons multiple times, inconsistent keyless entry recognition, or warning messages related to the key battery.

Can I replace a Peugeot key fob battery myself?

Yes. In most cases, Peugeot key fob battery replacement is a simple DIY job that takes only a few minutes with the correct battery and a small screwdriver or pry tool.

Will changing the battery erase my Peugeot key fob programming?

No, changing the battery normally does not erase the programming. If the remote does not work afterward, the issue is more likely the wrong battery, incorrect polarity, or a separate problem with the fob.

Can I use a CR2032 instead of a CR1620 in my Peugeot key fob?

Only if your Peugeot key fob was designed for CR2032. A CR2032 is thicker than a CR1620, so using it in the wrong fob can prevent the case from closing or cause poor battery contact.

How long does a Peugeot key fob battery last?

Many Peugeot key fob batteries last around two to four years, depending on use, climate, keyless-entry activity, and the quality of the battery installed.

Why does my Peugeot key still not work after a battery change?

Check the battery size, orientation, and fit first. If all of that is correct, the issue could be worn contacts, a damaged shell, a failing circuit board, or a problem with the remote itself.

Do I need a new Peugeot key fob or just a new battery?

If the remote still works sometimes, usually only has poor range, or shows a low-battery warning, you probably only need a new battery. If the key has broken buttons, water damage, or no response even with a fresh correct battery, then a shell replacement or fully new key fob may be the better fix.