Description:Display Electricity Quantity Parameter:(The following data is a reference value, there will be 2% error range)1.When battery voltage is over N*3.2V,it will illuminate 1 block electricity quantity (note:N represents battery quantity)2.When battery voltage is over N*3.4V,it will illuminate 2 blocks electricity quantity3.When battery voltage is over N*3.6V,it will illuminate 3 blocks electricity quantity4.When battery voltage is over N*3.8V,it will illuminate 4 blocks electricity quantity2S lithium battery , full charge 8.4V4S lithium battery , full charge 16.8VPackage included: 1 pcs