TypeA and B item descriptionThis is a fully automatic battery charger with 3 charge stages. Automatic charging protects your battery from being overcharged. So you can leave the charger connected to the battery indefinitely. Features: Microprocessor Control (CPU). This is a fully automatic battery charger with 3 charge stages. Automatic charging protects your battery from being overcharged. So you can leave the charger connected to the battery indefinitely. 3-stage chargers are suitable for most battery types including Calcium, Gel and AGM, Wet batteries. They may also help restore drained and sulphated batteries. Types of batteries: Most types of lead acid batteries including Calcium, GEL and AGM, Wet,EFB, etc.. Specifications: Switchmode technology: Yes Polarity protection: Yes Output short protection: Yes Non battery link protection: Yes Over voltage protection: Yes Over temperature protection: Yes Cooling: Fan Input voltage: 100-240V AC, 50-60Hz Rated output: 12V 8A 24V 4A Minimum start voltage: 2.0V Battery range: 6-150Ah Thermal protect: 65 C+/-5 C Efficiency: App. 85%. Size: 170 * 98 * 58mm / 6.7 * 3.9 * 2.3in Weight: 500g / 1.10lb Package size: 250 * 150 * 100mm / 9.8 * 5.9 * 3.9in Package weight: 560g / 1.23lb Package List: 1 * Battery Charger TypeC item description This is a fully automatic battery chargers with 3 charge stages. Automatic charging protects your battery from being overcharged. So you can leave the chargers connected to the battery indefinitely. Features:Microprocessor Control (CPU).This is a fully automatic battery chargers with 3 charge stages.Automatic charging protects your battery from being overcharged. So you can leave the chargers connected to the battery indefinitely.3-stage chargers are suitable for most battery types including Calcium, Gel and AGM, Wet batteries. They may also help restore drained and sulphated batteries.Types of batteries: Most types of leadacid batteries including Calcium, GEL and AGM, Wet,EFB, etc.. Specifications:Switchmode technology: YesPolarity protection: YesOutput short protection: YesNon battery link protection: YesOver voltage protection: YesOver temperature protection: YesCooling: FanInput voltage: 100-240V AC, 50-60HzRated output: 12V 8A 24V 4AMinimum start voltage: 2.0VBattery range: 6-150AhThermal protect: 65 C+/-5 CEfficiency: App. 85%.Size: 170 * 98 * 58mm / 6.7 * 3.9 * 2.3inWeight: 500g / 1.10lbPackage size: 250 * 150 * 100mm / 9.8 * 5.9 * 3.9inPackage weight: 675g / 1.49lb Package List:1 * BatteryCharger Yellow Pictures Red Pictures