Engadget explains why an iPad may stop charging and how to troubleshoot it

Engadget says the primary culprit is often the charger or cable. It recommends using the official first-party charger that came with the iPad or a high-quality fast charger, because cheap third-party chargers may be unreliable or unsafe due to poor quality control. The iPad needs a heavier-duty charger than an iPhone because of its larger battery. A weak charger may be connected properly but still fail to send enough power. Engadget says a charger should provide at least 10W, not an old Kindle charging block left in a drawer for years. A high-quality cable that meets the fast-charging standards of the charging block is also important.

To rule out peripheral faults, Engadget advises switching between multiple cables and adapters. If certain cables and chargers work while others do not, the problem is the charging accessory, not the iPad. Trying different wall outlets can help eliminate other variables.

If an iPad has been left unused for weeks or months, its battery is likely fully discharged, and most devices are prone to charging issues after being left completely drained for long periods. Engadget says such an iPad should be left on the charger for a good while, because it can take time before it turns back on, even with an ultra-fast charger.

Extreme temperatures can also interfere with the battery. Apple advises against charging an iPad in direct sunlight and says overly cold conditions should be avoided. The company states that temperatures between 32°F and 95°F are optimal for safe charging. Outside that range, iPadOS may slow or completely stop charging to protect the iPad's lithium-ion battery.

Charging-port damage is another possibility. If chargers work with other devices but will not charge the iPad, the tablet's port is likely damaged, according to Engadget. A charging icon that fluctuates on and off can also signal damage or blockage. Users can examine the port carefully with a phone flashlight. Scratched or bent pins, or any discoloration, suggest the port is damaged, and Engadget says users should contact Apple Support to discuss repair options. If the iPad is still in its warranty period, Apple may complete repairs for free when it deems the problem a manufacturing defect rather than accidental damage. AppleCare protection should cover port damage with a deductible.

Not all port problems are physical scrapes. Dirt buildup can interfere with the charging cable connection. If lint or dust is packed into the port, Engadget recommends using the soft bristles of a clean brush to remove grime safely. Paperclips and other small metallic objects should be avoided because they can scratch the port internals, and cotton swabs should not be used because they can leave fibers inside.

Once the cable, charger and port have been ruled out, Engadget says to force the tablet into a hard reset. This does not delete data; it is a forced restart similar to pulling the plug on a desktop PC. The process differs slightly depending on the model, and for modern iPads without a Home button, Engadget says the first step is to press and quickly release the Volume Up button, the one closer to the Power button.