Apple‘s upcoming iPhone 18 and iPhone 18e could feature identical 4,430mAh batteries, according to a new leak shared by a Chinese tipster. If accurate, the reported capacity would represent a significant increase over the batteries used in the current-generation iPhone 17 and iPhone 17e.
The information comes from alleged internal diagrams of the two unreleased smartphones, which have appeared on Chinese social media. The devices are identified by the codenames Taycan and Nevera, reportedly referring to the iPhone 18 and iPhone 18e, respectively.
Apple has not confirmed either model or its battery specifications, so the reported figures should be treated as early leaks rather than final specifications.
iPhone 18 and iPhone 18e Could Share a 4,430mAh Battery
According to the leaked diagrams, both smartphones could use a 4,430mAh battery.
For the standard iPhone 18, this would be approximately 20% larger than the 3,692mAh battery attributed to the iPhone 17. The iPhone 18e could see an increase of around 11% compared with the 4,005mAh battery reported for the iPhone 17e.
| Model | Reported battery capacity |
|---|---|
| iPhone 17 | 3,692mAh |
| iPhone 17e | 4,005mAh |
| iPhone 18 | 4,430mAh (rumoured) |
| iPhone 18e | 4,430mAh (rumoured) |
The leaked diagrams also suggest that Apple may be reusing some internal components across the two upcoming models. This could help the company simplify manufacturing and reduce differences between the standard and more affordable versions.
However, an increase in battery capacity does not automatically translate into the same percentage improvement in battery life. Processor efficiency, display technology, software optimisation and network usage will also influence real-world endurance.
iPhone 18 Could Get More Internal Space for a Larger Battery
The leak suggests that Apple could make internal design changes to accommodate the larger battery.
These reportedly include changes to the bottom speaker and Taptic Engine, along with the removal of the physical SIM card tray in certain versions. Removing the SIM hardware could free up additional internal space for battery components.
However, the eSIM-only design remains unconfirmed for the standard iPhone 18. It is also important to note that SIM configurations can differ between markets, so a design change reported for one region may not apply to every version.
iPhone 18 and iPhone 18e Display Specifications Could Differ
The two smartphones are also tipped to feature OLED displays, although their screen sizes remain disputed.
The standard iPhone 18 is expected to retain a 6.3-inch display with a refresh rate of up to 120Hz, continuing the higher refresh-rate experience introduced with the iPhone 17 generation.
The iPhone 18e’s display specifications are less certain. One leak points to a 6.3-inch panel, while an earlier claim from Digital Chat Station suggested that the affordable model could retain a smaller 6.12-inch OLED display with a 60Hz refresh rate.
If the latter information is accurate, Apple could continue differentiating the two models through display technology, even if they share the same reported battery capacity.
A20 Chip Could Power Both Upcoming iPhones
Apple is also expected to introduce its A20 processor for the standard iPhone 18 and potentially the iPhone 18e.
The chip is rumoured to use TSMC’s 2nm manufacturing process, which could bring improvements in performance and power efficiency compared with the 3nm-based A19 generation.
The iPhone 18 Pro models use the more powerful A20 Pro processor. If the standard iPhone 18 and 18e both adopt the A20, they could share a major part of their underlying hardware platform while retaining differences in cameras and other features.
The standard iPhone 18 is expected to retain a dual rear-camera setup with a 48-megapixel main sensor and a 48-megapixel ultra-wide camera. The iPhone 18e, meanwhile, is tipped to continue with a single rear camera.
These camera and processor details have not been confirmed by Apple.
iPhone 18 and iPhone 18e Launch Expected in Spring 2027
Apple is reportedly changing its iPhone launch strategy by separating the premium and more affordable models into different launch windows.
The iPhone 18 Pro lineup and the foldable iPhone Duo were introduced in September 2026, while the standard iPhone 18 and iPhone 18e are expected to arrive in spring 2027.
Current reports point towards a launch window between February and April 2027, although Apple has not announced an official date.
If the shared battery leak proves accurate, the iPhone 18 and iPhone 18e could offer a notable capacity increase over their predecessors. The final battery performance, display specifications and regional hardware differences will become clearer as the launch approaches.
