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Always ‐on GPS, 4G-wifi connectivity with high content consumption, long calls and regular fitness routines strains average battery of smartphones, wireless accessories, bluetooth enabled equipments and wearables. Post COVID pandemic, technology enabled work from home, in-house fitness routines, and expected 5G advent further add on to the faster depleting batteries of these devices. This increases the frequency of charging the devices.
The Out-Of-Home (OOH) AC charging sockets at restaurants, cafes, airports etc. are publicly shared and are subjected to limited availability. The DC charging sockets made available in transit flights, cabs and cars are capped at 9 V max. Both scenarios mandate facilitating fast charging given the caveats of accessibility, availability and average time spent in charging at the sockets.
Tech advancement in quick charging standards1 of (QC 4+/ QC 5.0) is limited in application to smartphones. Further, this offering is restricted to the premium flagship smartphones depending on a special facilitation of – 3A cable, dual cell configuration, 100+ W charger and flagship chipset (snapdragon 865+) with PD-PPS protocol. Devices apart from smartphones are bereft of this fast charging revolution.
The Need – Requirement for ‘ultra-fast recharging’ technology that can be used in smartphones, accessories viz. power banks, bluetooth enabled audio devices, laptops-tablets, personal care electronics, home automation and smart tech wearables that need to be portable and independent of bulkier higher mAh batteries.
Achieving fast charging from earlier 5W chargers to existing 18W and upcoming 20W (9V x 2.22A) iPhone chargers is a result of adopting the USB C powered PD charging technology with compatible lightning fast charging cable.
Alongside, the 20% increase in the battery capacity in the iPhone Pro Max (3969 mAh) from XS Max (3174 mAh)3 is in order to accommodate the increased wattage (18W+) which in turn is a factor of increased Voltage.
The PD convention not only facilitates fast charging to competition’s smartphones and devices4, but also mandates the increase in battery capacity of the devices that provide fast charging through higher wattages.
Implication: This affects the form factor and the weight of the devices thus impacting the user experience.
AtomsAlive’s ultra-fast charging technology is independent of the increase in the voltage and does not mandate the increase in the battery capacity. Until the trickle charge has set in, the battery has charged to 80% of its capacity in just 20-25 minutes as against the 50% charge capacity reached in 30 minutes in iPhone 11.
Implication: The wattage combination enhances the user experience in the above use case by increasing the ‘charging performance’ ratio (input charging time to output active time). This is because the charging time to achieve 100% charging is reduced by 70-75% than the conventional 18W Power delivery solution.