How to Check for an Original Phone Battery: Easy Tests for Nokia, iPhone and Android

Bought a replacement battery and not sure it’s genuine? A fake or poor-quality phone battery isn’t just annoying, it can overheat, swell or even catch fire. Back in 2006, Nokia batteries came with a hologram and a 20-digit code you could check online. That system is long gone, but there are better ways to check for an original phone battery today, whether you have a Nokia, an iPhone or an Android phone.

Quick answer: On an iPhone, go to Settings → Battery → Battery Health. iOS warns you if it can’t verify a genuine Apple battery. On Android, use your phone’s battery health screen or the maker’s diagnostics app, such as Samsung Members. For any phone, buy batteries only from the brand’s authorised service centre or official store, and watch for warning signs like swelling, heat and fast draining.

How the old Nokia original battery check worked

In the 2000s, fake Nokia batteries were everywhere, so Nokia added a security label to every Nokia original battery:

• A hologram showed Nokia’s “connecting hands” symbol from one angle and the Nokia Original Enhancements logo from another.
• Tilting it left, right, down and up showed one, two, three and four dots.
• A scratch-off panel hid a 20-digit code that you could verify on the Nokia website or by SMS.

Nokia’s own phone business was sold to Microsoft in 2014, and since 2016 Nokia-branded phones have been made by HMD. The old Nokia Originals verification site no longer works, so a hologram on its own can’t prove a battery is genuine any more. Older Nokia feature phones still use the same kind of removable batteries (like the BL-5C, which was once the subject of a Nokia battery replacement programme), so the warning signs below matter more than ever.

How to check for an original phone battery on iPhone

1. Open Settings → Battery → Battery Health (called Battery Health & Charging on some models).
2. Check Maximum Capacity. Below about 80% means the battery is worn and due for replacement.
3. If the battery isn’t genuine, iPhone XS and later show “Unable to verify this iPhone has a genuine Apple battery”, and battery health details are hidden.
4. Go to Settings → General → About and look for Parts and Service History. It lists a replaced battery as a “Genuine Apple Part” or an “Unknown Part”.
5. On iPhone 15 and later, the battery’s cycle count, manufacture date and first use also appear in Settings, which helps spot a used battery sold as new.

Apple explains these messages on its iPhone battery and performance support page.

How to check battery health on Android phones

Android has no single “genuine battery” check, but most brands show battery health somewhere:

• Samsung: open the Samsung Members app, go to Support → Phone diagnostics → Battery status to see battery life and capacity.
• Google Pixel: newer Pixels show Settings → Battery → Battery health, with capacity and condition.
• Other brands (Nokia/HMD, OnePlus, Xiaomi, Motorola): look under Settings → Battery. Some phones also show battery details when you dial *#*#4636#*#*.
• Battery apps: apps like AccuBattery estimate real capacity over a few charge cycles. If a “5,000 mAh” battery measures far less, it’s likely fake or worn.

Warning signs of a fake phone battery

• Swelling or bulging, or a back cover that no longer sits flat. Stop using the phone and get it checked right away.
• Getting hot during normal use or charging.
• Draining much faster than the original, or the percentage jumping around.
• Lighter than the original, with blurry printing, spelling mistakes or a missing safety mark (such as the BIS mark in India or CE in Europe).
• A price that’s too good to be true, or an unknown seller on a marketplace.

Where to buy a genuine replacement battery

The safest way to get an original phone battery is through the brand’s own service: an Apple Store or Apple Authorised Service Provider for iPhones, a Samsung Service Centre for Galaxy phones, and HMD’s authorised service partners for current Nokia phones. Third-party repair shops can be fine, but ask whether the battery is original and get a bill with a warranty. New EU rules will also make phone batteries easier for users to replace from 2027, which should mean more official spare batteries.

Once you have a genuine battery, these tips to extend mobile phone battery life will help it last longer.

Frequently asked questions

Can I still verify a Nokia battery hologram code online?

No. The Nokia Originals verification service has shut down. Check the label’s print quality and weight instead, and buy from an authorised seller.

Is it dangerous to use a fake phone battery?

It can be. Unlike an original phone battery, cheap fakes often lack proper protection circuits, so they’re more likely to overheat, swell or catch fire. Replace a suspect battery as soon as you can.

How do I know if my phone battery needs replacing?

If battery health shows below about 80% capacity, the phone shuts down suddenly, or the battery drains in a few hours, it’s time for a replacement.