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Anker Detachable Battery(NEW) for Portable CoolerPower your Anker EverFrost Powered Cooler at 39°F (4°C) for 42 hours (33L version), 35.8 hours (43L version), or 27 hours (53L version). Charge Your Devices: Use as a power bank and charge up to 3 devices via a 60W USB-C port and two 12W USB-A ports. Solar Recharging: Use a 100W solar panel to recharge the battery whenever it runs low. Fast Charging: Phone out of battery? Use the battery's 60W Power Delivery USB-C port to get it back up to 100% fast.