Seven months after launching its first semi-solid state battery that used a safer and longer-lasting solid-liquid mixed electrolyte, Kuxiu is introducing a new version with some welcome upgrades. The S3 has twice the capacity of the S2 at 10,000mAh – 5,000mAh at 7.7V (38.5Wh) – that the company says is enough to nearly double an iPhone’s battery life, but that will vary depending on the model.

The Kuxiu S3 is also Qi2.2-compatible so it can wirelessly charge compatible devices at up to 25W. Its larger battery means it’s over 100g heavier than the 145g S2, but Kuxiu has increased the number of N52 magnets it uses from 16 to 18 to help reduce the risk of the power bank being accidentally knocked off your phone. There’s an integrated kickstand now on the back, a small display showing its rem

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