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Overview
The Anker PowerCore 20100 (model A1271) is a high-capacity portable charger with 20100mAh of power. It can fully charge a smartphone multiple times or top up a tablet, all while maintaining a relatively compact form factor. Anker's PowerIQ technology automatically detects the connected device and delivers the optimal charging current for fast and efficient charging. MultiProtect safety system provides protection against overcharging, overdischarging, and short circuits.
Connectivity & Compatibility
The PowerCore 20100 features two USB-A output ports with a combined maximum output of 3A. Charging the battery itself is done via a micro USB input port, supporting up to 2A input. It is compatible with a wide range of devices including iPhones, Android smartphones, tablets, Bluetooth earphones, and more. Note that it does not support USB-C Power Delivery, so users needing fast charging for USB-C PD devices should consider a different model.
Product Info
Released in 2015, the Anker PowerCore 20100 has become a long-selling staple in the portable charger market. It typically retails for around $25-30, offering excellent value for its capacity. Anker provides an 18-month warranty (extendable to 30 months with product registration). The package includes the battery, a micro USB cable, and a user manual. It occupies the entry-to-mid tier segment, favored by budget-conscious users who need reliable, high-capacity power on the go.
Best Use Cases
Ideal for travelers, commuters, and anyone who spends long hours away from a power outlet. With 20100mAh, you can fully charge a typical smartphone 5-7 times, making it perfect for multi-day trips. It also works well for tablets and handheld gaming consoles. However, if you need to charge a laptop or a USB-C PD device at full speed, look for a Power Delivery compatible power bank.