DC Converter with Battery Clip 12V 24V to 5V Step Down 4-Port USB Power Adapter Charger Portable for iPhone iPad Android and Tablet Chargers

Input voltage: DC 8-35V (12V/24V can convert to 5V if is lead-acid battery or lithium-ion battery )Output voltage: DC 5V ( Each port output is 2A/10W ); Total current output is 8A/40W (max) High conversion rate can reach 96% supporting 4 USB ports and the ability to charge 4 devices simultaneouslyIt is stable to protect your device from overcurrent overheating short circuit low voltage. Use with portable battery the DC converter can use as power bank suitable for emergency situations outdoor travelers camping etc.