This car battery charger is designed with ABS flame retardant shell, it is flame retardant and high temperature resistant insulation, strong and durable. There are eight protections inside. Revers protection, full power auto stop, inteiligent detection, multiple protection, pulse repair, temperature detecetion, hort-circuit protection and over voltage protection. You can charge it with just one click, very easy to use.. This battery charger has fast charging speed, compact size and high power, it can charge all 12 volt and 24 volt lead-acid car, marine and deep cycle batteries, and the battery will automatically stop when it is fully charged to ensure charging safety.
After the product enters the charging state about 25 seconds touch the button to self-lock. You need to take off any clip or disconnect the mains to unlock.