This year, OnePlus continues to be at the forefront of battery and charging specs. The new flagship packs a massive 7,300 mAh silicon-carbon (Si/C) battery, paired with 120W wired charging and 50W wireless charging. Combined with Qualcomm’s new Snapdragon 8 Elite Gen 5 chip, this could easily be one of the longest-lasting and fastest-charging flagships of the year.
Note: Keep in mind that these specifications apply to the Chinese version of the phone. The global and North American models may differ slightly — OnePlus has previously limited charging speeds or battery capacity for certain regions.
Does the OnePlus 15 have better battery life?
Combined with the efficiency gains of the Snapdragon 8 Elite Gen 5 (built on TSMC’s 3nm process) and improved battery management in OxygenOS 16, we expect noticeably better battery life from the OnePlus 15. Even with its power-hungry 165Hz display, the OnePlus 15 might last up to two full days with moderate use.
How much battery does the OnePlus 15 have?
| Model | Battery |
|---|---|
| OnePlus 15 | Si/C Li-Ion 7300 mAh* |
| OnePlus 13 | Si/C Li-Ion 6000 mAh |
| OnePlus 12 | Li-Po 5400 mAh |
*Confirmedfor Chinese variant; global models may vary.
Does the OnePlus 15 have wireless charging?
That’s far quicker than what you’ll get on most other flagships. For example, Apple’s MagSafe peaks at 25W, while Samsung’s Galaxy S25 Ultra caps at 15W.
Does the OnePlus 15 have reverse wireless charging?
Yes. The OnePlus 15 supports 10W reverse wireless charging, letting you top up accessories like earbuds or smartwatches. It also supports 5W reverse wired charging, handy for emergencies or when you want to power another device via USB-C.
What charger does the OnePlus 15 use?
To achieve top speeds, you’ll need the original charger and cable. Third-party options using standard USB Power Delivery (PD) or PPS will still work, but at lower speeds.
The phone also supports multiple fast-charging standards: UFCS, 55W PPS, 36W PD, and 36W QC, making it compatible with a broad range of high-quality USB-C chargers.
How fast does the OnePlus 15 charge?
- 50% in just 15 minutes
- Full charge in about 40 minutes
That’s with the included 120W SuperVOOC charger. Even with a slower PD or PPS adapter, you’ll still get solid performance (roughly 36W, depending on the charger).
The OnePlus 15 also includes bypass charging, which powers the device directly during gaming sessions, reducing battery wear and heat buildup.
For comparison, the OnePlus 13’s 100W system reached 86% in 30 minutes and a full charge in 43 minutes. The new model should manage that even with the larger 7,300 mAh battery, which would be even more impressive.
Wireless charging performance remains top-tier, too. The 50W AIRVOOC charger should deliver a full charge in under 90 minutes.
