Two slots are better than one when you're a power user of Power Share tools and lawn & garden products. Charge up two 18V/20V batteries at the same time in about 2 hours, or just one even quicker. It's portable enough to throw in your bag and take with you on the job or to a project. And its long cord gives you the flexibility to plug it in almost anywhere once you get there. It also makes an excellent permanent home charging station and is wall-mountable for just that purpose. Ideal for those with larger lawns, as you're probably going to need more than one battery to trim or edge the whole yard. And if you're enjoying our 40V Power Share tools, which use two 20V batteries, this charger will prove to be indispensable. Power Share is the cost-effective way to build out a whole tool and lawn & garden and lifestyle collection. Every Power Share battery runs every tool on the platform. Every string trimmer/ edger, every drill/driver, every mower, every chainsaw, every Hydroshot power washer. Those same batteries even power our MAKERX line of crafting and hobby tools. So you save money because you don't have to buy a new battery every time you buy a new battery-powered tool. And a dual-port charger is a great way to make the most of that platform.