The Slim Folio charges through a USB-C port on the bottom edge of the case

The Logitech Slim Folio is a keyboard case for iPad that has its own battery. Unlike your iPad, which you charge separately, the Slim Folio needs its own charging routine. You'll find a small USB-C port on the bottom edge of the case — the same type of port found on many modern phones and tablets.

To charge it, plug any USB-C cable into that port and connect the other end to a power adapter. You can use the same power adapter and cable you use for other devices, as long as they have USB-C. The case doesn't come with its own charger in the box, so you'll need to use one you already own or purchase separately.

The battery inside the Slim Folio powers the keyboard's wireless connection to your iPad. When the battery runs low, the keyboard stops responding to your taps, even though the case itself is still physically attached to your iPad. Charging takes roughly two to three hours from completely empty to full.

Key Takeaways

  • The Slim Folio charges via USB-C port located on the bottom edge of the case.
  • You can use any USB-C power adapter and cable you already own — the case does not include one.
  • A full charge from empty takes about two to three hours.
  • The keyboard will stop responding when the battery is low, even though the case remains attached to your iPad.
  • Logitech recommends charging the case when the battery indicator shows low, rather than waiting until it stops working completely.

How to know when your Slim Folio needs charging

The Slim Folio has a small LED indicator light on the keyboard itself. When you press a key or tap the trackpad, this light shows you the battery status. A green light means the battery is healthy. An amber or orange light means the battery is running low and you should charge soon. If the light doesn't appear at all when you press keys, the battery is completely dead.

You can also check the battery level through your iPad. Open the Bluetooth settings on your iPad, find the Slim Folio in the list of connected devices, and it will show you the remaining battery percentage. This is the most accurate way to see exactly how much charge is left.

Charging the case while it's attached to your iPad

You do not need to remove the Slim Folio from your iPad to charge it. The USB-C port is accessible even when the case is closed around your iPad. straightforward plug in your USB-C cable while the case is still attached, and charging will begin when ready.

The case and iPad charge independently of each other. Plugging the Slim Folio into power does not charge your iPad — you'll still need to charge your iPad separately using its own USB-C port or Lightning connector, depending on which iPad model you own.

What to do if the keyboard stops responding

If you press keys and nothing happens on your iPad, the Slim Folio's battery is likely dead. Plug it in to charge right away. The keyboard should start responding again within a few minutes, though you may want to wait 15 to 20 minutes to give it a more substantial charge before relying on it for typing.

If the keyboard still doesn't respond after charging for 30 minutes, try disconnecting and reconnecting it through your iPad's Bluetooth settings. Go to Settings > Bluetooth, find the Slim Folio in the list, tap the information icon next to it, and select "Forget This Device." Then turn Bluetooth off and back on, and the case should appear in the available devices list again. Tap it to reconnect.

How long the battery lasts between charges

Logitech states that a fully charged Slim Folio battery lasts about three months under normal use. This assumes you're using the keyboard regularly but not constantly throughout every day. If you use your iPad with the Slim Folio keyboard for several hours each day, you may need to charge it more frequently — possibly every four to six weeks.

The battery drains even when you're not actively typing, because the keyboard maintains a wireless connection to your iPad. If you don't use the Slim Folio for weeks at a time, the battery will slowly lose charge. Logitech recommends charging the case at least once every few months even if you haven't used it, to keep the battery healthy.

Troubleshooting charging problems

If your Slim Folio won't charge, first check that your USB-C cable is fully inserted into the port on the bottom of the case. The port is small and the connection can feel loose if the cable isn't pushed in completely. Try a different USB-C cable if you have one available — sometimes a cable can be damaged without looking obviously broken.

Make sure your power adapter is actually providing power. Plug your iPad or phone into the same adapter to confirm it works. If the adapter is dead, the Slim Folio won't charge even though the cable is connected correctly. If you've tried a different cable and a different power adapter and the case still won't charge, the battery itself may be faulty. Contact Logitech support with your case's serial number, which you can find in the original box or in the Settings app on your iPad under Bluetooth device information.

Frequently Asked Questions

Can I use any USB-C charger with my Slim Folio?

Yes. Any USB-C power adapter will work, including chargers for phones, tablets, and laptops. The Slim Folio draws very little power, so even a high-wattage charger designed for a laptop is safe to use. You don't need a special charger made by Logitech.

Does the Slim Folio charge faster with a higher-wattage power adapter?

No. The case charges at the same speed regardless of whether you use a 5-watt phone charger or a 65-watt laptop charger. The Slim Folio's internal charging circuit limits how fast it accepts power, so a more powerful adapter won't speed up the process.

What happens if I leave the Slim Folio plugged in overnight?

It's safe to leave the case plugged in. Once the battery reaches full charge, the charging circuit stops sending power to the battery, so it won't overcharge or damage the battery from sitting plugged in for hours or days.

Can I use the keyboard while it's charging?

Yes. The Slim Folio works normally while plugged in and charging. You can continue typing and using the trackpad without any interruption.

Why does my Slim Folio battery drain so quickly?

If your battery is draining much faster than the stated three months, the keyboard may be searching for a connection to your iPad repeatedly, which uses extra power. Try forgetting the device in Bluetooth settings and reconnecting it. If the problem continues, the battery may be aging and losing capacity, which is normal after a few years of use.