Usams US-CD69 Battery iPhone Xs Max Case is a case equipped with a 4000mAh power bank capable of charging the cellphone directly without the need to connect the phone to a charger or manual power bank.
 
Made of flexible, flexible TPU softcase that is easy to apply and also features Shockproof as protection from impact.
 
Using a quality Smart Chip to protect overcharge, overheat, over voltage and short circuit to keep the phone safe when using it.
 
Apart from having a 2 in 1 function as a casing and charger, this Battery Case does not interfere with the Audio function (Speaker / Phone Call) using Lightning Earphones, data transmission and is equipped with a Magnetic Iron Chip so that it can be used on a magnetic holder.
 
There is a power bank capacity indicator light from 0-100% so you don't need to worry about knowing the amount of power remaining.
 
Note:
Press and the power button behind the case for 3 seconds to ON / OFF
Indicator lights 4 points (75-100%), 3 points (50-74%), 2 points (25-49%), 1 point (1-24%)

The 1 point indicator flashes powerbank power out
Recharging the cellphone and battery case can be charged simultaneously, but the main charging of the cellphone is first.