40 AMP 12V24V Heavy Duty Battery Charger for Big Truck Diesel semi Trucks and Tractors Vehicles Boat Battery Charger Marine Lead-Acid Batteries Automotive Heavy Duty Manual Repair Pure Copper Coil

Suitable for 12V60-500AH & 24V30-250AH batteries--Designed for 12-volt and 24-volt sealed lead-acid automotive, marine, RV, powersport, and deep-cycle batteries, including flooded, gel, AGM, SLA, VRLA and maintenance-free,Note that this is a high-power heavy-duty charger, please do not use it on small batteries Less than 12V60AH OR 24V30AH,12-volt (0-40 Amp) and 24-volt (0-20 Amp) - Charging speed is much faster 4 times than ordinary 10A automatic battery chargers.You can select "SLOW" OR "FAST" mode for you need,The charger will sound a short beep alarm when it is fully charged,

• Incredible charging speeds--12-volt (0-40 Amp) and 24-volt (0-20 Amp) - Charging speed is much faster 4 times than ordinary 10A automatic battery chargers.You can select "SLOW" OR "FAST" mode for you need,The charger will sound a short beep alarm when it is fully charged
• Suitable for 12V60-500AH & 24V30-250AH batteries--weighing 26.5 lb ,Designed for 12-volt and 24-volt sealed lead-acid automotive, marine, RV, powersport, and deep-cycle batteries, including flooded, gel, AGM, SLA, VRLA and maintenance-free,Note that this is a high-power heavy-duty charger, please do not use it on small batteries Less than 12V60AH OR 24V30AH
• Better than ordinary Small Electronic Battery Charger--Compared with ordinary Small Electronic battery chargers, This battery charger has a big pure copper high frequency transformer and a more powerful intelligent circuit control system.This greatly improve the power and performance of the charger.And due to the use of this transformer, it can withstand a wider temperature range and adapt to more extreme weather conditions,And more durable, with a longer service life
• High-Efficiency Pulse Repair--Built-in advanced battery REPAIR mode to help to recover old/idle batteries and extend battery life. If the battery cannot be charged, please use repair mode. The high-frequency and low-frequency pulse technology has good repair and activation effects. Note: It can not activate a dead battery or repair a battery that is damaged seriously.
• Visualized Charging-Using a backlit LCD, the battery charger automotive clearly and visibly shows an LCD screen displaying the charging status and battery status; An integrated thermal sensor detects the ambient temperature and alters the charge to eliminate over-charging in hot climates and under-charging in cold climates.