Chinese phone maker Oppo is introducing three new fast charging technologies it plans to use in upcoming smartphones.

VOOC Flash Charge 4.0 supports 30 watt fast charging. 30W Wireless VOOC Flash Charge is a pretty self-explanatory term. And then there’s 65W SuperVOOC Fast Charge 2.0, which is the company’s fastest wired charging technology to date.

Oppo says the upcoming Reno Ace smartphone will be the first to ship with SuperVOOC 2.0, and it’ll let you fully charge the phone’s 4,000 mAh battery by plugging it in for just 30 minutes.

Admittedly, that’s not the fastest fast charging tech around. Xiaomi says its 100 watt system can charge a 4,000 mAh battery in 17 minutes, and Vivo has a 120 watt fast charger that can do it in 13.

The new 30 watt wireless fast charging tech is a little more competitive — Xiaomi just introduced its own 30W wireless charger earlier this month. Oppo says it takes 80 minutes to fully charge a 4,000 mAh battery using its new wireless charger — and the system is backward-compatible with any Qi-compatible devices so you can also charge phones that only support 5 watt or 10 watt charging.


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4 replies on “Oppo unveils 65 watt SuperVOOC 2.0 fast-charging tech”

  1. Where do you get the information that super fast charging is NOT bad for batteries? I am curious. Sources? You state overcharging and undercharging IS bad which is well understood. You also stated heat is bad for batteries, which is produced in greater quantities the faster you charge a battery.

    1. Samsung Note 10+ does consistent 25W charging the entire time it is between 20% and 80%. Ambient temperature needs to be room temp and screen can not be active. Super fast charging is possible, but not under normal use conditions. This is the part that all companies are conveniently omitting.

    2. You could have done a quick Google search.

      The only part where Fast Charging can damage a battery is if it passes a voltage higher than the battery can handle, which never happens because of the Battery Management Program built into the software and hardware of the device. Or if the phone charges too quickly causing it to heat above a high-threshold (above 50’C). Even in that case, the software would cause the charging to slow down. And in the case of this VOOC (v1 – v3) the current change happens on the charger and not the port, which increases efficiency and reduces heat massively. It’s also safer, since a failure in the charger means your device is still good, and cheaper to replace the charger. A failure in the port may cause the port or the phone to malfunction, and whilst the charger would be fine, you might have to repair/replace the battery which costs significantly more. On top of this, some devices have two batteries, and charging two separate cells is actually faster, less hot, and more efficient. It’s not widely used because it requires more engineering to get it done right.

      In short, as long as the voltage isn’t too high, there’s almost no damage. There could be degradation from increased heat, but this is accounted for during the design of the device, so it’s actually not a factor.

  2. Charging rates between 10% to 90% is most important.
    This device sounds like it could do it in 20mins with a cable, or in 60mins wirelessly. Impressive. It’s this range that people should keep their batteries at, and usually people do.

    For those wondering, such Super-Duper-Fast-Charging isn’t really bad for the battery health. What is bad is when the phone is undercharged or overcharged, which is why almost all phones have redundancies built into the battery and the software. Like when it depletes to 0% it’s usually around 2%, and when you fully charge to 100% it’s generally 98%… doing so extends the life of the battery. Other factors also affect the battery health such as heat or physical damage. The biggest factor is the limited charge cycles. And charging the battery halfway two times is equal to charging it fully once, so it’s only a matter of time when the battery degrades.

    Just as an example, most OEMs now use the cheap batteries which loses about 30% capacity per year. The flagships use medium-quality cells that lose around 15% per year. And very few models (eg iPhone SE ?) use the higher quality stuff that degrades 10% or less per year. The really expensive high-quality lithium ion units are supposed to do over 1,000 cycles (over 3 years?) and retain over 91% of their capacity, or close to doing 5,000 cycles and retain over 51% of their original capacity.

    That’s why Removable Batteries was/is an important specification, which helped prevent/dampen Planned Obsolescence.

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