Battery charger scope of application Charging the lithium battery is strictly prohibited. Optional rated power: 12V 8A, 24V 4A; Minimum starting voltage: 2.0V; Battery range: 6-150Ah. (for AGM, GEL, MF, SLA, VRLA), diagnose and repair battery problems and extend battery life for cars, trucks, motorcycles, lawn mowers or boats, cars, trucks, ATVs, SUVs and more. Battery chargers Multiple safety protection The charger uses multiple safety functions. Fireproof flower, over-voltage protection, over-current protection, reverse polarity protection (positive and negative connection error), short circuit protection, overheating protection. Ensure your safety. Additionally, the side of the charger uses a fan to prevent overheating during charging. Extend the life of the charger. Smart LCD touch digital displayCar battery chargers can switch functions with touch display, automatically detect outside temperature to switch summer or winter mode by yourself. Self-adjustment of current or voltage without manual adjustment; When the battery is full, charging stops automatically. Self-changing data carousel shows temperature, charging voltage, charging current and battery power. Repair function, voltage & power detection The high frequency and low frequency pulse technology has good repair and activation effects. Suitable for low voltage batteries, batteries not used for a long time, damaged batteries and vulcanized batteries. Connect the battery without connecting the power, can display the remaining battery voltage. Keep an eye on your battery status and see if you need to charge. Note about the charger Note: There is a very dense protective film on the product's display. If the product has traces, please do not doubt it. This is just the surface of the film. You will see a brand new display when you tear off the film.Features: Type: Fully automatic smart charger AC input: 100-240V, 50/60Hz < p>Power output: 12V 8A, 24V 4A Output voltage: 12V / 24V Output voltage without charge: 13.8V Minimum voltage at start: 3.2W< /p> Battery capacity: 6-150AH (12V), 6-100AH (24V) Working temperature: -20 ~ 45 Cooling way: fan Certification: CE, FC, R-ohs, PSE Battery Type: 3-stage chargers are suitable for most types of lead-acid batteries, including calcium, gel and AGM, SLA, VRLA , wet EFB batteries, etc. Notes 1. This is a fully automatic charger with 3 charging levels. 2. Automatic charging protects the battery from overcharging. So you can keep the charger connected to the battery indefinitely. (For safety reasons, if you go out for a while, use it not always in operation).