Oraimo OPB-7400Q PowerBox400 22.5W Portable Powerbank with 4 Output Ports & LED Display-40,000mAh

The Oraimo PowerBox 400 Vision is engineered for users who refuse to settle for limited charging power when they’re mobile. With a massive 40,000 mAh capacity, this power bank handles multi-device charging, extended trips, and emergency power backups with ease. The built-in LED digital display gives you crystal-clear visibility of remaining power so you’re never caught off guard. 

Under the hood, the PowerBox 400 supports 22.5 W fast charging through PD3.0 and QC3.0 protocols, and it delivers two-way ultra-fast charging both in and out. That means devices like smartphones and tablets charge quickly and the power bank itself recharges swiftly when you plug it in. It features four output ports (including USB-A and Type-C) so you can charge multiple devices at once—smartphone, tablet, earbuds and portable cooler, all together. 

Safety and build quality are top-tier: the cell type is polymer lithium rated at 148 Wh capacity, the unit uses fire-proof V0-rated materials, and a 15-layer smart protection system guards against over-current, over-voltage, short-circuit and temperature spikes. Whether you’re camping, traveling, or simply want full confidence when you leave home, the PowerBox 400 is more than just a power bank—it’s backup power you can trust. 

When you list this product, you’re offering users true mobile power independence. No more juggling chargers or plugging in every few hours. This model is a strong upsell or premium option within the accessories category and presents clear value for users who travel, work remotely, game, or manage multiple devices daily.