12volts 18AH Deep Cycle Battery And 12v 5A Smart Fast Battery Charger (2in1)

Intelligent fast charger is our company based on the battery characteristics and professional design and development which uses an advanced pulse-width modulation (pwm) technology,three stage intelligent Charging fast and anti reverse,short circuit proof automatically identify whelther the batteries automatically shut down output hanging design easy  and so on.this product is suitable for 12V lead acid battery gel battery.Three stage charging method of the efficient (constant current, constant voltage,trikle)PWM charge ModeWith battery line detection,short circuit, over current, over voltage and reverse polarity protection and other functionsCharge indicator show Charging process directly reflects facilitate users to quickly understand the current state of the batteryThe lead-acid battery charger is professional design according to the power battery of electric vehicles equipment. It uses the advanced soft switch technology, with small size, high conversion efficiency, running full loading for a long time, stable output current, high reliability, long service life, easy operation,etc. With short-circuited protection, low-voltage protection, over-heated protection. The long delay digital counter can ensure the battery from the constant voltage to the float charge reliably every time. Pre-charge mode: In order to protect the battery and extend its life, the battery’s internal resistance is too large or voltage is too low because the discharged time is too long or it is not used for a long time, the charger will supply low output current for the battery automatically. When voltage of the battery rises to the given voltage value, the charge mode will turn to constant current charge mode automatically.Constant current mode: The charger supply constant charge current for the battery.Constant voltage mode: Using the pulse width modulation(PWM) tech to control the charging current and output voltage of the charger which ensure the battery is fully charged and avoids over charging.Floating charge mode: When the voltage of the battery is approaching the value of the constant voltage mode, and the current cut down to the given current gradually, that means the battery power is full, then the pilot lamp will turn green and the fan will stop working.The charger will turn the mode into floating charge mode automatically. At this moment, the battery can be stopped charging or keep on floating charge for half an hour.