Universal Battery Charger 1/2 Slot Adapter 18650

Features:Batteries NOT INCLUDEDWhen the green light is on, the output is in the normal standby state, and it is red when charging. When the voltage of the rechargeable battery reaches about 4.1v, the red light turns green. At this time, the charger does not completely stop charging, but continues to charge with a small drop of current. The highest cutting voltage is 4.21v. The charger has perfect over-current and short-circuit protection functions. After being fully charged, there is no need to power off immediately, and it will not be overloaded. The materials are solid, the 13001 (0.5a) three-pole low-grade power supply is discarded, and the 13003 (1.5a) three-pole is used directly. Charging method: constant current and constant voltage. This charger has short-circuit, over-current and over-voltage, and reverse polarity protection! Mini size, easy to carry, durable and safe. It can recognize and automatically convert dc3.6v 3.7v lithium ion rechargeable battery. Red light when charging, green light when fully charged. It will stop automatically after charging is completed. Perfect protection function, short circuit does not charge. Suitable for 3.6V/3.7V 18650/18500/14500/14430/10440 lithium ion batteries
 Precaution: 1. The rechargeable battery needs to be careful not to over-discharge, that is, it cannot be charged when the light is turned off. The charging must be stopped when the light is obviously dark, and recharged in time, otherwise it will affect the battery life or directly discard it. Do not use it normally, charge it fully.
 2. Don't take out the battery for a long time, don't put it in a flashlight; wait for the battery to cool down (about five minutes) after each charge to prevent the battery voltage from being burned due to excessive battery voltage.
 Basic parameters: Input voltage: 100v-240v 50 / 60hz 500ma max. Output voltage: 4.2v output Current: 500*2 Plug: EU/U.S. Indicator status indication: Green light standby (4.16v trickle state when charging) The red light is charging! The green light flashes and there is 4.21v overvoltage
 Packing list: 1*charger