Product description The portable camping outdoor shower build in 3.7V / 2400mAH × 2 lithium battery. When the electric shower is fully charged, It can last more than 90 minutes. Product Specifications: Volt: 3.7V Lithium Battery:2x 2400mAh Water Flow:Low stall 3L/Min;High stall 4L/Min Charging Way: DC Input 5V Charging Time: Depending on your charger(5V/2A:about 4hours) Indicator light：Charging indicator light(blue);Low power indicator light(red) Total length:About 210cm(82.7inch) Pump size: Φ 65 x 108 mm (Φ 2.56x4.25 in) Safety water temperature: 5 ℃ -50 ℃ Charging precautions: 1.Charger requirements: output 5V 2A or more than 2A 2.Charging time: 3-4 hours 3.Indicator light：Charging indicator light(blue);Low power indicator light(red) 4.Charging indicator: The charging process lights up in blue. When the battery is full, the blue light goes out. 5.When charging, confirm that the power button is in the off state. (Confirmation method: press the power button repeatedly after charging for a few minutes to adjust the power switch to the off state) Note: When the power is turned off automatically during use, the power button is not turned off. The machine cannot complete charging in this state. The power button must be pressed to the off state to be charged properly.