Lenovo ThinkPad Battery Recall: Which Models Are Affected?

Lenovo has recalled ThinkPad laptop batteries multiple times — significant recall waves in 2006, 2007, 2014, and 2015. The hazard is the same each time: lithium-ion battery packs that can overheat, posing a fire and burn risk. If you own a ThinkPad, check the battery part number on the underside of the laptop or on the battery itself. Part numbers in the 45N1 series are covered by the 2014/2015 recall; 42T series numbers may be covered by the older 2006/2007 recall. If your battery is affected, Lenovo provides a free replacement. Check the current recall status at cpsc.gov and file a claim at lenovo.com/support.

Lenovo has a longer recall history on laptop batteries than most people realize. The pattern has repeated itself across different product generations, always driven by the same underlying issue: lithium-ion battery cells that fail under certain conditions, generating enough heat to cause fires or burn injuries.

The first major recall came in 2006. This was part of a broader industry-wide lithium battery crisis that affected Sony-manufactured cells used in laptops from multiple brands. At the time, the product was still branded as IBM ThinkPad — Lenovo had completed its acquisition of the ThinkPad line from IBM the previous year. The 2006 recall covered approximately 526,000 battery packs. The CPSC announced it in coordination with Lenovo and IBM. The batteries involved were manufactured with defective Sony cells that could overheat.

In 2007, Lenovo expanded the recall to cover additional battery packs that had not been included in the original action. The expansion added more serial number ranges and additional ThinkPad model variants.

The second major wave came in 2014, when Lenovo recalled ThinkPad laptop battery packs separately from the earlier Sony-cell issue. This recall covered a different set of battery packs used in ThinkPad T, X, W, and L series laptops. The issue was again overheating, with the risk of fire and burns. In 2015, Lenovo expanded this recall to cover additional units.

All four of these recall actions are documented at cpsc.gov. Searching for "Lenovo" or "ThinkPad" in the CPSC recall database will surface all of them with full details including the affected model ranges and how to obtain a remedy.

The 2014 and 2015 CPSC recalls — which are the most likely to affect people with ThinkPads that are still in service today — cover specific models in the ThinkPad T series, X series, W series, and L series. These were among the most popular ThinkPad configurations during that period, which is why the recall had wide reach.

The battery packs covered by the 2014/2015 recall have part numbers that fall within the 45N1 series. This is a specific set of Lenovo-branded battery packs designed for those ThinkPad models. Not every battery in the 45N1 series is recalled — the recall covers specific part numbers within that range. The full list is available at cpsc.gov and on the Lenovo recall page.

For the older 2006/2007 recall, the affected batteries had part numbers in the 42T series and were used in IBM and early Lenovo ThinkPad models from that era. If you are still running a ThinkPad from 2005 or 2006 with its original battery, those part numbers are worth checking.

The model number of the laptop itself matters too. Lenovo has published compatibility charts showing which laptop models shipped with recalled battery part numbers. Checking both the laptop model and the battery part number gives you the most complete picture of whether your specific unit is covered.

For ThinkPads with a removable battery — most models from before around 2016 — the easiest method is to physically remove the battery from the laptop. Flip the laptop over, locate the battery release latch or latches, and slide the battery out. On the back of the battery, you will find a label with the part number printed on it. The part number typically starts with a two- or three-digit number followed by letters and more numbers. Look for part numbers starting with 45N or 42T.

If the label is worn or hard to read, check the laptop itself. Some ThinkPad models print partial battery information in the battery bay — the recessed area where the battery sits when installed. There may also be information in the BIOS. Press F1 or the ThinkPad button during startup to enter the BIOS, then look under the hardware information section for battery details.

For newer ThinkPads with built-in (non-removable) batteries, focus on the laptop model number. The model number is printed on a label on the underside of the laptop, usually near the serial number. Take that model number to cpsc.gov and search for it under the Lenovo recall listings to see if your laptop model is included.

Once you have the part number or model number, search cpsc.gov/recalls for "Lenovo" or "ThinkPad battery" to find the relevant recall notices. Each notice includes a table of affected part numbers. Match yours against the list. If you are unsure, Lenovo support can also confirm whether a specific serial number is covered.

If your battery is covered by an active recall, the process for getting a free replacement runs through Lenovo directly. Go to lenovo.com/support and look for the recall or safety notice section. Lenovo maintains pages for each active recall that walk you through the submission process.

You will need your laptop serial number and, if possible, the battery part number. The serial number is printed on the underside of the laptop near the other product information. Having both numbers speeds up the process. Lenovo support can also look up recall eligibility based on the serial number alone in most cases.

Lenovo ships replacement batteries directly to you at no cost. Depending on when you initiate the claim, turnaround time varies. For current recalls, replacement batteries are generally in stock. For older recalls, you may want to call Lenovo support rather than going through the web form to get a faster assessment of availability.

For the older 2006/2007 recall involving IBM ThinkPad batteries, the remedy program has been running for a long time. Whether it is still active depends on the specific recall and Lenovo policy at the time you check. It is worth trying — submit a claim and see. Lenovo has an interest in handling these appropriately, and the CPSC monitors whether manufacturers honor their recall commitments.

Once you receive the replacement battery, follow Lenovo instructions for disposing of the recalled unit. Many areas have electronics recycling programs that accept lithium batteries. Do not throw a lithium battery pack in the trash.

Lenovo laptop batteries are not the only Lenovo products that have faced recalls. Lenovo has also recalled portable battery packs — the kind you use to charge phones and other devices on the go. Like the laptop batteries, the hazard is overheating that can lead to fires or burns.

If you own Lenovo-branded accessories in addition to a ThinkPad, it is worth checking those as well. The CPSC database covers Lenovo accessory recalls separately from laptop recalls. Search for "Lenovo power bank" at cpsc.gov to see current and past recall actions.

For an up-to-date view of all active Lenovo recalls including accessories, check recallradar.co/recalls for current listings.

Even outside of recall scenarios, how you use and store a ThinkPad affects long-term battery health and safety.

Do not use the laptop on soft surfaces — couches, beds, pillows — for extended sessions. ThinkPads rely on bottom vents for airflow to manage heat. When those vents are blocked by fabric, the internal temperature climbs, and the battery runs hotter than it should. Over time, this degrades the battery faster. In the short term, it creates conditions similar to those that have caused reported overheating incidents.

If your battery is visibly swollen — meaning the bottom of the laptop is no longer flat, or the battery no longer sits flush in the battery bay — stop using the laptop and contact Lenovo. A swollen lithium battery has already experienced internal failure. Continuing to use it is a genuine fire risk. Do not try to puncture or compress a swollen battery.

If the laptop runs noticeably hotter than it used to, or if the battery drains much faster than expected even after accounting for age, those can be early signs of a battery that is starting to degrade in a way that warrants attention. Lenovo Support can run a remote diagnostic or you can use Lenovo Vantage software on Windows to check battery health status.

Keep your ThinkPad firmware and Lenovo Vantage up to date. Lenovo periodically releases firmware updates that include battery management improvements. These updates can address charging behavior and thermal management in ways that extend battery life and improve safety.

RecallRadar monitors Lenovo product recalls automatically. When a new recall is announced that matches a product you have registered, you get an alert. No more manual searches at cpsc.gov every few months.

Add your ThinkPad at recallradar.co/register Get notified of future Lenovo recalls at recallradar.co/alerts Browse all current Lenovo recall listings at recallradar.co/recalls/lenovo