If using a lithium battery, the required voltage is 3.7V;
if If using a battery packor battery holder, please make sure it is a parallel battery pack. Please use a high-quality battery holder with thick and durable connection cables. Using a low-quality battery holder with thin or poorly connected wires may cause the X1203 to malfunction or fail to operate as expected.
There are 2 XH2.54-2P battery connectors on board, it is recommended to use the same type of battery.