According to reports, the iPhone SE 4 will use the same battery as the iPhone 14 to reduce costs. The device identifier for Apple's upcoming fourth generation iPhone SE is D59, and it is expected to use the same battery as the standard version of the iPhone 14. The partially assembled prototype of the new device is already equipped with a lithium-ion battery model A2863, which Apple has already used on the iPhone 14 in the past. The internal design documents also confirmed this change.