Smartphones and tablets are running electrical components that are evolving at a very fast pace; they are able to double their processing speeds while consuming half the battery life. However, that pace is not running along the same lines as battery technology, which is an integral part of the smartphone, and very little effort is being inputted in this particular area. However, Innos, which is a newcomer to the smartphone market, takes advantage of a new engineering approach and uses it in its D6000 smartphone, a device which features not one, but two smartphone batteries, and a Type-C USB port; the same one present in Apple's 2015 MacBook.

Coming to the most important feature of D6000; its overall battery life. The smartphone is assimilated with one 2,480 mAh non-removable battery, and another 3,520 mAh removable one, which equals to 6,000 mAh. According to GSMArena, the combination of both batteries will grant more than 60 days of standby battery time, along with 3-5 days of backup time with continuous smartphone usage.

Another impressive feat that the company has been able to accomplish is stamp a $290 price tag on to D6000. The device might feature a Snapdragon 615 SoC, which is a little disappointing, but it makes up in the form of 3 GB of RAM, 32 GB of expandable storage, a 5.2 inch 1080p display, dual-SIM compatibility, LTE connectivity, and a Type-C USB port.

Several critics might come to the conclusion that the inclusion of two batteries will generate more heat compared to a single battery, and therefore, be harmful to the remaining components. Fortunately, Innos has used a very clever technique for reducing heat generation and increasing overall battery life.

According to Ubergizmo, an intelligent dual-channel charging solution called DuoCharge is present in the smartphone, which ends up reducing heat generation and increases overall functioning lifespan of the handset, as well the dual-lithium ion batteries.