As we all know, battery provides the power to start a phone and run apps in the mobile phone. However, as cell phone technology has been developing with fruitful achievements, like dual-camera tech is used in more and more smartphones, CPU developments to deal with multitasks, larger-size smartphones of phonablet and bordless smart phones, the mobile phone’s configuration is stronger and the performance is better, the phone battery becomes the biggest obstacle to mobile phone innovation. After all, a phone without power is nothing.
Even the phone battery technique has improved a lot through the past generations from nickel-cadmium battery to nickel-metal hydride battery, then to lithium ion battery and to lithium-ion polymer battery (also belongs to lithium ion battery range) that is smaller with more volume and it is the predominant one used in today’s mobile devices. The biggest volume of mobile phone battery is 6020mAh from Gionee M5 and it needs to charge every day for normal use.
Why don’t the smartphone manufacturers improve the battery volume? Is it better to have a higher-volume battery? It’s clear that mobile phone is hitting a wall in this area. Generally, the battery technology is the basic cause of phone battery volume limits. Even with today’s battery technique, the volume of a battery is proportional to the size and it is hindered to improve a higher volume in the same size. Besides the battery technique cause, another reason is the phone’s user experience. When higher volume means bigger size, no one would like to use a brick-like phone.
How cell phone manufacturers solve this battery problem? While the battery technology can’t be developed sharply in a short time, the smart phone manufacturers has began to find other methods, like optimizing phone software usage and quick-charge technology, to extend a phone’s battery life. Here are some quick-charge ways that are used most now.
OPPO VOOC Flash Charge
By utilizing the standard 5 volt charging voltage, but increasing the current to 5 amps, which makes the charging speed 4 times greater than that of conventional chargers (Currently the output voltage for a standard adapter is 5V, and the current is 1A. Some manufacturers have increased the current to 2A). The VOOC Flash Charge also uses specially made components such as the power adaptor, 8 pin battery, 7 pin port, USB cable and circuitry other than the traditional USB2.0. It only takes 5 minutes to have enough battery for a two-hour call even for models such as the OPPO N3 with a battery capacity of 3000mAh, it can be charged to 75% in 30 minutes. OPPO VOOC Flash Charge has become the pioneer of the Smartphone Charge Technology, but it can only be used for OPPO’s own smartphones right now.
The MaxCharge Technology is the first highly-integrated 5-A switch-mode battery charge management and system power path management device for single cell Li-Ion and Li-polymer battery. This technology supports high input voltage fast charging, and reduces the charging time to 50 percent off.
Qualcomm’s Quick Charge 2.0
Qualcomm Quick Charge 2.0 is designed to accelerate the charging process. When paired with a compatible Quick Charge 2.0 certified power adapter, a Quick Charge 2.0-enabled smartphone can achieve a full charge in a fraction of the time traditional methods would take. It can help a batter of 3300mAh charge to 60 percent in 30 miniutes.
MediaTek Pump Express
Pump Express allows a mobile device to negotiate with the DC wall charger to determine the initial voltage required to recharge the battery, based on its current charge. The voltage is then gradually increased to up to 5V to maximize the charging current, while keeping the battery safely within its thermal limits.