Battery Heating Bag.

• 25–55°C Adjustable Temperature Range
• 50W Adjustable Constant Heating
• 20W USB-C Output, Charge Your Gear Anywhere
• XT60 input (7.4V–30V) Works with 2S–6S LiPo or Li-ion packs
• Safety First—The inner liner is constructed entirely from fire-resistant materials. Current, short-circuit, temperature, and voltage protection; Adjustable cutoff voltage; Low-voltage buzzer alarm.
• HD IPS Display, Shows current temperature, target temperature, input voltage, and cutoff voltage at a glance.
• Massive Capacity – 20 Batteries, One Case, Fits up to 20 6S 1000mAh LiPo batteries.