21v1a battery charger lithium battery power supply

Description

Charging principle: The first stage of constant current charging begins and the indicator light turns red. When the charge reaches the rated voltage, it switches to the second stage of constant voltage charging. As the voltage increases, the current slowly decreases. When the charging current reaches the turn signal current, the indicator light turns green. At this point the battery has been approximately 95% charged and the charger will continue to charge with a small trickle until it is fully charged to 100%. Reassure be sure for assurance High temperature resistant ABS + PC flame retardant environmental protection material passed many high temperature And explosion-proof test for peace of mind Wire output is very important Use normal standard thickened pure copper wire, overall wire diameter is 3.5 mm, less With less voltage drop and line loss, the transmission speed is faster and more stable.