Final answer:
The main difference is that iOS device batteries are typically non-replaceable by users, whereas some Android device batteries are designed to be user-replaceable. Both types of devices most commonly use lithium-ion batteries.
Step-by-step explanation:
The BEST describes the difference between batteries used in iOS devices versus Android devices is that iOS device batteries are typically not designed to be replaceable by the user, whereas many Android device batteries are. Modern iOS and Android devices predominantly use lithium-ion batteries that offer several advantages, such as being lightweight, providing a stable voltage, and having a slow self-discharge rate when not in use. NiMH and NiCad batteries are types of rechargeable batteries used in other applications but are generally not found in iOS or Android devices. iOS devices have batteries that are usually integrated within the device, making them non-replaceable without specialized tools or professional assistance. On the other hand, some Android devices may have user-replaceable batteries.