YONHAN Battery Charger 8-Amp, 12V/24V Smart Automatic Car Battery Charger with 6 Charging Mode and LCD Screen, Intelligent Charges, Repairs, Maintains Car Motorcycle Boat Mower Battery
Brand: YONHAN
Color: Red & Black
A. The battery voltage is not within the charging range (ie: battery voltage> DC35V), which will make the charger work unstable and burn out

Preventive measures： Before charging the battery, first confirm the voltage range of the product and the voltage range of the battery. If the battery has no relevant parameter identification, use a multimeter (adjusting DC file) to measure its voltage. If the voltage is higher than the charging voltage of the product, do not charge it.

B. The input voltage of the product is AC100-240V, if the input voltage exceeds AC265V, it will cause the charger circuit to burn out.

Preventive measures： Before charging the battery, confirm the voltage range of the AC power source. If not sure about the AC voltage, use a multimeter to adjust to the AC position and measure the AC power source.
WIDE RANGE OF APPLICATIONS - This battery charger is Suitable for 12V-24V 4AH-120AH lead acid battery including AGM, Calcium, Gel, MF, SLA, VRLA, WET batteries. Ideal for charging and repairing cars, trucks, motorcycles, lawnmowers, boats, ATVs, SUVs, etc.
MULTIPLE SAFETY PROTECTION - Reverse polarity protection (wrong polarity connection prompt), spark-proof, overvoltage protection, overcurrent protection, short circuit protection. Built-in a fan to prevent overheating while charging. Secures safety during charging.
6 CHARGING MODES - The smart battery charger can automatically detect outside temperature, then auto-switch between SUMMER or WINTER mode and self-appropriate raise and reduce the charging voltage. CAR/TRUCK mode (12V 8A / 24 6A) for fast charging big batteries, MOTORCYCLE mode (max 1.5A) for small batteries, AGM mode for AGM, and calcium batteries, REPAIR MODE for repairing old batteries.
INTELLIGENT CHARGING - The 3-STAGE microprocessor-controlled charging process provides the best possible application and enables efficient battery charging. The charger will auto-off when fully charging. The LCD digital display will carousel shows temperature, charging voltage, current, and battery power.
ADVANCED REPAIR MODE - Built-in advanced battery REPAIR mode to help to recover old/idle batteries and extend battery life. 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.