POWEROAD's Dual Mode Battery Maintainer / Battery Charger is suitable for both lead-acid batteries (4Ah~30Ah) and lithium-ion batteries (1.5Ah~20Ah). It features a multi-phase, fully automatic charging cycle and intelligent detection that can check and indicate a weak or damaged battery. Safety is guaranteed with spark-free operation, protection again polarity reversal and short-circuiting (without load), plus over-temperature, over-current and over-voltage protection. It is also safe for long-term battery connection thanks to the automatic cut-off setting. Designed for both 12V lithium (LiFePO4) batteries and lead acid batteries Multi-phase automatic charging cycle Able to check and indicate weak or damaged batteries Able to recover deeply discharged batteries Polarity reverse protection Short circuit protection Over-temperature protection Over-current protection Over-voltage protection Safe spark-free operation Auto cut-off when battery is fully charged, and resumes charging when battery voltage is low Safe for long term connection to maintain battery without damage Easy to learn status from clear LED display Technical data Input voltage: AC100-240V, 50/60Hz Input Current: Max. 0.5A max Output Voltage: Max. DC 14.4V Output Current: Max. 2.0A Charge Type: Multi-phase fully automatic charging cycle Battery Capacity (Lithium LiFePO4): 1.5Ah~20Ah Battery Capacity (Lead Acid): 4Ah~30Ah IP Rating: IP55