UNITED NEWS INTERNATIONAL (UNI) — Apple CEO Tim Cook says the next iOS update will allow iPhone users to disable a controversial battery-saving feature.

The new option comes after Apple acknowledged that a software update last year intentionally slowed down iPhones to conserve battery life and prevent unexpected shutdowns.

The shutdowns occur mainly in older-model iPhones whose batteries are chemically aging.

Many consumers accused Apple of slowing down older phones to force users to upgrade to newer phones.

Apple apologized in late December for what it called a miscommunication and lowered the price of new batteries.

During a Jan. 17 interview with ABC News, Cook said the update will let users check the health of their batteries and will even let them disable the battery-saving feature.

Cook warned that disabling the feature could result in unexpected shutdowns.

Consumers can expect the update as early as March.