Will 10,000 mAh batteries become the new standard for smartphones in the next few years or will users still prioritize thin and light designs over extremely large battery capacities?
On August 4, 2026, OPPO officially announced OPPO A7 Pro Max in the Chinese market. According to information published by OPPO, this is the company's first smartphone equipped with a 10,000 mAh battery, targeting users who need long usage time, while still maintaining a relatively thin body.
The biggest highlight of OPPO A7 Pro Max is the 10,000 mAh battery. OPPO says the device can play short videos continuously for up to 24 hours or play music continuously for about 135 hours under the company's testing conditions. When using tasks such as navigation, listening to music and watching online videos simultaneously, the device can still operate for nearly 10 hours. These are all internal testing data published by OPPO.
OPPO also said that the battery has passed 1,500 complete charge-discharge cycles and still maintains over 80 percent of its capacity after testing. According to the company's calculations, with a charging frequency of about every two days, battery life can reach about seven years before dropping below this threshold. This is a claim based on OPPO's testing standards.
In addition to large battery capacity, OPPO A7 Pro Max also supports 80 W SuperVOOC fast charging and 27 W wired reverse charging to power phones, headphones orc other smart watches. OPPO said the charging system still operates stably in environments from minus 20 degrees Celsius to 43 degrees Celsius.
Outstanding parameter table
Category OPPO A7 Pro Max
10,000 mAh battery
SuperVOOC 80W fast charging
Reverse charging 27 W wired
Battery cycle 1,500 cycles
Capacity after testing Over 80 percent
6.78 inch OLED screen, 1.5K resolution, 120 Hz
Qualcomm Snapdragon 4 Gen 5 processor
Rear camera 50 MP + 2 MP
50 MP front camera
ColorOS 16 operating system is based on Android 16
Quick comparison
Criteria for OPPO A7 Pro Max OPPO Reno15
Battery capacity 10,000 mAh 6,000 mAh
80W fast charging 80W
6.78-inch 120 Hz AMOLED 6.59-inch OLED display
Product positioning Extremely long battery life Balanced performance and camera
OPPO's inclusion of a 10,000 mAh battery on commercial smartphones shows that the trend of strongly increasing battery capacity is taking place in the mobile industry, thanks to high energy density battery technology that helps increase capacity while still controlling device size and weight. If actual use is similar to the announced OPPO parameters, the A7 Pro Max will be one of the smartphones with the longest battery life today.
