Using this battery is simple. Just insert it into your device as you would with any regular battery. When it comes to charging, use a charger suitable for NiCd batteries and follow the charger's instructions. For best results, charge it fully before first use. Here are some important things to note. Avoid overcharging the battery as it can reduce its lifespan. Don't expose it to extreme temperatures, like very hot or very cold places. To maintain this battery, keep it clean and dry. If you're not going to use it for a long time, store it in a cool and dry place. Remember, even though it's an OEM part without branding, it's still high - quality and made by Sanyo or Panasonic.