The Byondself 50,000 mAh external battery is presented at a reduced price on Cdiscount, at 35.99 euros instead of 40 euros. This power bank uses a powerful lithium polymer battery, which incorporates an advanced safety device.
The battery is housed in a shiny black ABS case, which displays one kilo on the scale and easily fits in a backpack. Note that this model can charge up to three devices at once and is compatible with PD 25W and QC 4.0 fast charging technologies.