SOLPERK 20W Portable Waterproof Solar Panel Kit Battery Charger Maintainer. Great for car battery, outdoor lights, or any where a battery is needed. works great. Great if you have Ignition Interlock device that is draining your vehicles battery, too.!! If you have an ignition starter that slowly drains batteries, you need this. Can go on dash, roof, hood etc.. No need to keep replacing expensive car batteries Battery Charge Maintainer works great with Intoxalock, Smart Start etc
