How Do I Rejuvenate A Nicd Drill

Home-Improvement Many of the cordless tools and appliances we use are powered by rechargeable nickel-cadmium batteries, typically abbreviated as Ni-Cd or Ni-Cad. Ni-Cd batteries are often used in solar-powered garden lights. And while they are a terrific power source, they have some inherent weaknesses. If your Ni-Cd batteries have weakened, there are methods you can use to revitalize them. Automatic Discharge Even if left unused, Ni-Cd batteries lose a small percentage of their power each day. This is an inherent characteristic caused by the chemical reactions occurring inside the battery. If you have set your solar-powered lights outside for the summer and notice that even after a full day of maximum exposure, they fail to light at dusk, the fix is usually quite simple. Turn off the power switch on the underside of the solar panel and allow the batteries to charge over the course of several sunny days. After two to three days of continuous charging, your Ni-Cd drill batteries will often .e back to life. Additionally, failure to light may also occur with a brand-new solar-powered light if it sat for many months before it was purchased. The Ni-Cd batteries discharged on their own. Discharge, Then Recharge Ni-Cd batteries may be recharged multiple times. However, for the batteries to recharge fully, they should first be nearly .pletely discharged. As an example, place them in a device such as flashlight, and turn it on until the battery’s power has been depleted. Or you can acquire an electronic discharging unit that will deplete the current automatically. Many electronics retailers sell devices of this type. Some Ni-Cd battery chargers have a built-in discharging unit that you can use before beginning to recharge the cells. Several types of Ni-Cd battery chargers are manufactured. There are rapid charging units that normally need about five hours to .pletely recharge. There are also trickle charging units available that may require up to 16 hours to .plete their charging cycle. The advantage of a trickle charger is that a Ni-Cd may be left in the unit continuously, ensuring that it remains fully charged at all times. An even more recent innovation has been the development of solar powered trickle chargers and so called "smart" charging units, which prevent overcharging a Ni-Cd. Too much voltage can be just as damaging to a Ni-Cd cell as not enough. End of the Line Even a rechargeable Ni-Cd cell will not last forever. After multiple charging cycles, the chemicals inside the battery degrade to a point where the unit will no longer accept or hold a charge. When this occurs, the power tool batteries must be discarded. As Ni-Cd cells contain several highly toxic substances such as cadmium, they should not be sent to a landfill. You should return them to a battery recycling collection point instead. About the Author: 相关的主题文章: