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Realme unveiled two concept phones at its 828 Fan Festival in China. The first model offers a 15,000mAh battery and is advertised as delivering up to five days of use on a single charge, raising questions about its practical endurance. The second device features a 10,000mAh battery, a built-in cooling fan, and a thermo-electric cooler, with Realme claiming a temperature reduction of up to 6°C—an assertion that warrants closer examination.
The new Realme concept phone features a high-density battery, boasting a capacity of 15,000mAh, which is typically only achievable in thick, rugged phones. Realme has managed to integrate this into a form factor that is thinner than the typical rugged designs, with a claimed thickness of just 8.89mm. However, this impressive feat certainly invites questions about possible engineering trade-offs. Achieving such slimness with high capacity may lead to challenges concerning heat dispersion, due to limited space for heat dissipation mechanisms. Additionally, this design might impact the phone's weight distribution and overall durability, potentially influencing long-term usability and user comfort.
Key Battery Specifications:
Battery Capacity: 15,000mAh (World’s largest smartphone battery)
Technology: 100% Silicon Anode Battery (World’s First)
Energy Density: 1,200 Wh/L (Industry’s Highest)
Battery Thickness: Just 6.48mm
Phone Thickness: 8.89mm (42% slimmer than equivalent power bank)
Weight: 68% lighter than comparable power banks
Realme
The handset was shown bearing the model number PKP110. The Realme concept phone's About page also suggests the inclusion of a 6.7-inch display. Teaser images reveal a dual-rear camera setup at the back of the phone. It is shown in a silver colourway, with the 15,000mAh branding on the back panel.
Features a 7,700mm² VC cooling chamber, the largest in the smartphone industry.
Internal Miniature Fan – Active air circulation system
Thermoelectric Cooler (TEC) – Semiconductor-based cooling
In other words, a phone with a pure silicon battery like this Realme concept device would be extremely prone to battery swelling and degradation. Silicon batteries tend to swell because silicon expands significantly during the charge-discharge cycle, which can lead to mechanical stress and eventual degradation. Additionally, this expansion can compromise battery integrity and safety, increasing the risk of leakage or fire. Current mitigation strategies include developing advanced composites or protective coatings that can accommodate or prevent this expansion. However, these solutions remain in the experimental stage and are not yet widely implemented in commercial products. This suggests that we shouldn’t expect to see a commercial version of this 15,000mAh phone any time soon. It simply doesn’t appear to be safe for long-term usage.
Realme
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