How to choose the right charger forscrewdriver? This question is faced by all who need to buy this equipment. But this is not so difficult, there are several rules, adhering to which, you can buy quite a high-quality and reliable charger for the screwdriver.
Statistics
If you pay attention to the statistics, thenthe popularity of drill-screwdrivers increases mainly due to the possibility to use them at a sufficiently far distance from the power source, since they are equipped with batteries, therefore, work can be carried out even in a damp room. Therefore, these drills are different from the usual mobility. Leading manufacturers such as Makita, Metabo, Bosch, Black Decker, Hitachi use the following types of batteries in their power tools:
- Nickel metal hydride.
- Lithium Ion.
- Nickel-cadmium.
Disadvantages and advantages
Nickel-cadmium devices are the mostpopular, well-known models - Bosch 12 and Hitachi DS. Such chargers for screwdrivers have a low price, they charge relatively quickly and retain a high capacity in the most adverse conditions, even if the temperature is below twenty degrees of frost. The only drawback is the loss of unused capacity in a charged battery when recharging.
Application
Screwdriver Chargernickel metal hydride is used in the kit DS 18, the manufacturer of Hitachi. It is more environmentally friendly than the previous version, and also a bit more expensive in price, but the capacity is much higher, the energy density is higher than that of nickel-cadmium, by forty percent, the effect of memory loss is partially eliminated. Self-discharge of nickel-metal hydride instruments is one and a half times higher.
New in the field of production of chargers
The latest development in the field of manufacturersThe power tool is a lithium-ion battery charger for a screwdriver battery. There is no memory loss in the device, so charging, regardless of discharge, can be done at any time, the battery capacity is high, only five percent of self-discharge per month.
Battery Capacity
Battery capacity is measured in ampere hours.The more battery it has, the longer the device will work with one charge in the same conditions. If the capacity is greater and the maximum current is higher, then the power is stronger. The capacity of the models used in everyday life is one and a half ampere hours, and in professional ones it is somewhere around two and a half.
The charger for the screwdriver has a verywide voltage range - from 2.4 to 36 volts. The most popular and popular devices are 9, 12, 14 volts. The first two options are equipped with electric screwdrivers and cordless screwdrivers, and power tools with more power, for example, drills - the last.
With proper storage and use, the charger can last for quite a long time.
