Apple doesn’t make a battery case for any iPhone 12 model, unfortunately, and you can’t just use a battery case from an any older iPhone — they just won’t fit. So if you want battery case so your new iPhone 12 gets even better battery life, you have to buy new one.
When shopping for a battery case, there are a few things you want to consider.
• You want it to have a decent battery capacity; all batteries are different, but a 5,000mAh battery capacity will give your iPhone 12, depending on the model, about an extra 70 percent of juice.
• You want it to support wireless charging so you don’t have to rely on a Lightning cable.
• You want it to be small enough that it doesn’t make your iPhone too big to fit in your pocket.
The following battery cases check all those boxes. There are currently no battery cases that are fully compatible with MagSafe, but that seems like it will inevitably change in the near future.