Lost the charger for your Wagan 2412 900 Amp Portable Battery Jumper? Don't sweat it – this Onerbl AC adapter is the perfect replacement. It plugs right into any standard wall outlet (handles 100-240V, so it works worldwide) and converts that AC power into the DC power your jumper pack needs to recharge. It's brand new, high-quality, and specifically tested to be compatible with your Wagan unit. It also has built-in safety features like over-voltage and over-heat protection to keep your gear safe while it's plugged in. Super handy to have a spare or to finally get your jumper back to 100% after it's been sitting dead in the garage. Just plug it in, let it charge, and you'll be ready for the next roadside emergency or dead battery. A simple, essential accessory for anyone who owns one of these portable power packs.