The 6 - 12 Volt NiCd & NiMH Battery Pack Smart Charger is an ideal choice for charging NiCd or NiMH battery packs with capacities under 4000 mAh. This charger is capable of charging battery packs ranging from 6 to 12 volts, and comes equipped with a pulse and negative pulse charging technology that not only protects the battery from overheating, but also increases the number of charging cycles.

One of the key features of this smart charger is its ability to automatically detect the voltage of the battery pack being charged. This means that the charger will automatically adjust the charging current to provide the most efficient and safe charging process possible.

The charger also comes equipped with a negative delta V cut-off function, which ensures that the battery pack is fully charged and prevents overcharging. Additionally, the charger is protected against over current, short circuit, and reverse polarity, which makes it an extremely safe and reliable charging option.

The charger is easy to use and comes equipped with an LED indicator that turns red while the battery pack is being charged, and then automatically shuts off when the battery pack is fully charged. The charger is also equipped with a standard female tamiya plug and charging clips, making it compatible with a wide range of devices, including RC cars, airsoft guns, and air guns.

The 6 - 12 Volt NiCd & NiMH Battery Pack Smart Charger is also designed for worldwide power support, with a 120-240V AC input that allows for use in different countries. Its compact size of 3.4" x 2.1" x 2.1" (including the plug) makes it portable and easy to carry around, while its weight of 4.8 oz (140 g) ensures that it is lightweight and easy to handle.

Overall, the 6 - 12 Volt NiCd & NiMH Battery Pack Smart Charger is an efficient, safe, and reliable charging option for those in need of a charger for their NiCd or NiMH battery packs. With its advanced charging technology, automatic voltage detection, and protection against overcharging, over current, short circuit, and reverse polarity, this charger provides an ideal solution for charging battery packs for a range of different devices.