Small smartphone batteries in Europe could be bigger if manufacturers wanted

Chinese smartphones now feature advanced silicon-carbon batteries exceeding 7,000mAh capacity, but these devices arrive in Europe with significantly smaller batteries due to transportation regulations. European rules classify battery cells over 20Wh (roughly 5,200mAh) as dangerous goods, making shipping more expensive since few carriers will transport them. While manufacturers could use multi-cell battery designs to bypass this limit, companies like Vivo reject this approach because it would make phones thicker and heavier, with European markets too small to justify separate production lines.