Today, KGI Securities analyst Ming-Chi Kuo published a note predicting that the upcoming Apple smartphone (iPhone 8?) Will reduce a battery of a larger size in a smaller format 4.7 inches, possibly with better performance than the battery of a 5.5 inch LCD iPhone.
This would be achieved by using a more stacked logical board design, also known as a substrate-like PCB (SLP) board, which would create more space within the device to accommodate a significantly larger battery.
The design should allow Apple engineers to reduce a "Plus" battery inside a smaller device with an OLED display and similar dimensions to a 4.7-inch iPhone.
This is a part of Kuo's report:
Because battery material technology is not likely to see significant advances in the next 3-5 years, the motherboard area can only be reduced through the SLP stack, which gives room for a larger battery and a Time of prolonged use.Thanks to the SLP stack, we expect the OLED iPhone to be similar in size to a 4.7-inch LCD iPhone and to have comparable battery capacity to a 5.5-inch iPhone.
If the iPhone 8 uses a battery similar to the 5.5-inch iPhone, it would be a 50% increase in power compared to a 4.7-inch device. In fact, the iPhone 8 could have a better battery life compared to the 2,900 mAh battery of the iPhone 7 Plus of 5.5.
This is because the phone will switch to an OLED display that is significantly more efficient in terms of power consumption, since unlike its counterpart LCD, OLED technology does not need a backlight. The stacked baseboard design could result in a manufacturing cost increase of up to 80% higher, supporting the idea that the iPhone 8 will have a premium price of over $ 1,000 .