Achort 12V 8A 24V 4A battery charger allows you to connect the charger to the battery and leave it for maintenance indefinitely. It will maintain your battery during the charging process, enhance battery vitality and extend your battery life. Smart Temperature Detecting The charger will automatically detect the ambient temperature. According to the ambient temperature, automatically adjust the charging voltage. So that the full charge in winter, summer but not charge. 6 Working Modes By switching modes on the touch display, you can adapt to different charging objects or repair modes, or switch the summer or winter mode. If you want to maintain or trickle charge a big battery, you can select the MOTORCYCLE mode instead of the CAR/TRUCK mode. CAR/TRUCK mode Motorcycle mode AGM mode Repair mode Summer mode Winter mode Specifications: Input Voltage: 100-240V 50-60Hz Output Voltage/Current: 12V/8A, 24V/4A Input Power with Load: Max.130W Input Power No Load: 3.2W Material: ABS + PC housing Cooling: Fan Weight: 633g/1.4lbs Dimensions: 6.7 x 3.9 x 2.3in Cable Length: 180cm/71in Battery Type: All SLA batteries (Wet, MF, GEL and VRLA), AGM (Flooded and EFB) The pulse repair function can automatically detect sulfation and acid stratification to help repair and activate low voltage batteries, long-term unused batteries, damaged batteries and vulcanized batteries. Adaptation: 12V/24V universal (Note: Lithium batteries are prohibited). Battery connection: red clamp battery positive (+), black clamp battery negative(-) It can repair a slightly damaged battery, not a dead battery, nor can it repair a battery to 100% new. Premium Cooling Fan With built-in cooling fan, drop the operating temperature, prolong the service life. Exquisite and Compact The appearance is exquisite and compact, convenient to store and carry, and it does not take up space in the car. ABS Flame-retardant Shell Made of ABS flame-retardant material, insulated, flame-retardant and high temperature resistant, to ensure charging safety. High Quality Wire The pure copper soft core wire ensures stable current output, the charging wire does not heat up for a long time, and the fully-encapsulated crocodile clamps are durable and safe to use.