This is SKYRC NC1500 AA/AAA Battery Charger & Analyzer. Charging batteries is usually a primitive, boring and mundane activity, and it still is. What matters during the charging process, especially for AA/AAA NiMH battery charging? No doubt, accuracy and safety! The creation of NC1500 not only arises out of the need but also from the desire to have a simple but safe and accurate charger for the battery. NC1500 has four independent slots and supports AA/AAA NiMH batteries, offers a maximum charge rate of 1500mA.