Charger for a screwdriver - how to make a choice

How to choose the right charger for a screwdriver? Everyone who needs to buy this equipment faces this issue. But this is not so difficult, there are several rules, adhering to which, you can buy a completely qualitative and reliable charger for a screwdriver.

Statistics

If you pay attention to statistics, the popularity of 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 humid room. Therefore, such drills are different from the usual by their mobility. Leading manufacturers such as Makita, Metabo, Bosch, Black Decker, Hitachi use in their power tools batteries of such types:

1. Nickel-metal hydride.
2. Lithium-ion.
3. Nickel-cadmium.

Disadvantages and advantages

Nickel-cadmium devices are the most popular, well-known models - Bosch 12 and Hitachi DS. Such chargers for screwdrivers are of low price, relatively quickly charged and retain high capacity under the most unfavorable conditions, even if the temperature is below twenty degrees of frost. The only drawback is the loss of the uncharged capacity in the charged battery when recharging.

Application

Charger for screwdriver nickel-metal hydride is used in the kit DS 18, the manufacturer of Hitachi. It is more environmentally friendly than the previous variant, and also slightly more expensive in price, but the capacity is much higher, the energy density is higher than that of nickel-cadmium, by forty percent, the memory loss effect is partially eliminated. Self-discharge of nickel-metal hydride devices is one and a half times higher.

Novelties in the field of manufacture of chargers

The latest development in the field of manufacturers of power tools is a lithium-ion charger for a screwdriver battery. The device has no memory loss, so charging, regardless of discharge, can be made at any time, the battery capacity is high, only five percent of self-discharge per month.

Rechargeable batteries

Battery capacity is measured in ampere-hours. The more it has a larger battery, the longer the device will last for one charge under the same conditions. If the capacity is larger and the maximum current is higher, then the power is stronger. The capacity of models used in everyday life is one and a half ampere-hours, while for professional ones it is about two and a half. Battery voltage

The charger for a screwdriver has a very wide voltage range - from 2.4 to 36 volts. The most popular and popular are devices in 9, 12, 14 volts. The first two options are equipped with screwdrivers and cordless screwdrivers, and power tools with more power, for example, drills - the last.

With proper storage and use, the charger can last a fairly long time.