When it comes to tools or equipment like the best cordless drill, there are some information that will be on the general level of awareness that everyone knows about and there will be some that will be revealed through researches and personal findings. Some you know or learn about them by experience, just like the cordless drill battery charger is often overlooked and not given much attention to when talking about parts or accessories of the cordless drill, there are some things or terms that are quite important to grasp a full knowledge of every discussion about cordless drill and cordless drill battery chargers.
Below is a list of terms explained to the barest understandable level, with these terms you will able to speak with confidence when it comes to the cordless drills and their battery chargers and sound like a professional.
Glossary of Cordless Drill Battery Terms
When reading or being told about rechargeable batteries, you may hear or come across some terms, yet they will sound unknown and without understanding them you might never understand what is being said or what information is bring passed across.
- Amp Hours
This is the unit of measurement of the battery capacity, defining the current that can be delivered in a time frame, say 10Amp hour, any battery with this capacity will be able to produce and deliver electric current of 10Amperes for 1 hours (there could be variation in the time and ultimately the current provided but it must never exceed the capacity of the battery, e.g. 10Amp hour battery can also produce electrical current of 20 Amp in 30 minutes and so on.
- Battery Capacity
This is however a simple term and what it means is the number or amount of electrical current that the battery can store till it’s needed.
- Battery Life
Somewhat related to the Battery capacity and Amp hours, it means the number of full charge cycles that can be completed by the battery before it packs off or before replacement is required.
- Battery Voltage
With various battery type being labeled with different voltages e.g. 24V OR 36V there is need to have an understanding of what it means before you can make the right choice on which is which. Battery Voltage is defined in terms of the electrical pressure accumulated in the battery and it goes a long way to determine the battery life of the battery.
- Charge Cycle
From the general notion of life cycle meaning from the period of inception to the period of death, Charge Cycle would mean the Period of time between when a fully charged battery was used up and charge fully again. Occasionally you will find several battery brands indicating on their product the Charge Cycle of such products, in fact you should look out for it when buying your batteries.
- Memory Effect
This term is used to refer to a battery that doesn’t perform as it ought to again, many of the times it is due to the battery being charged wrongly. Usually, this happens when the batteries are ageing and when charged they would not last long as they would originally. However memory effect doesn’t affect all types of battery.
The remedy to this so called memory effect is to ensure that you recharge such battery only when the tool stops and the battery is out of power, if not anytime you charge while it still has power on it, it will put this into remembrance and the next time you attempt to charge it, no matter how long it is connected to a power source it will not be fully charged.
Furthermore, you can practice this act once in a while with your battery i.e. one not suffering from memory effect, otherwise you can recharge it at any time you want to whether it is down or not.
- Recharge Time
The time taken for a battery to be fully charged
- Self-Discharge Rate
The word self-discharge means to lose stored power when not in use. However all batteries exhibit this character with some occurring faster than the other. E.g. the Nickel-Cadmium Batteries lose their stored power faster than the Lithium-ions batteries and that means they have a higher self-discharge rate.
Asides from the battery related terms that have been explained, there are a few other terms that might need to be explained whether in relation to the performance of the drill or the drilling itself. These terms include
- Torque and Speed
When the cordless drill delivers a force which is either used in inserting and removing screws or used to drill holes, that turning force is called torque and this torque varies with drills, it is measured in Newton meters. The torque has a relationship with speed and it is an inverse relationship, the Speed control on the drill which when turned on sets the chuck in motion and the more you apply force on this switch the faster the tool will operate on the contrary as the speed is increasing the torque is decreasing. So, when you reduce your grip on the speed control the tool slows down and the torque increases. This is because of the existing inverse relationship between the torque and speed which when one increases the other decreases and vice versa.
- The Chuck
Not a single mention of the cordless drill will make a perfect sense without referring to the chuck, this is an essential part of the drill which holds the accessories in place, the type of chuck found in the cordless drill is however a keyless one and this means the jaw can be opened and the bits place inside only to be closed to hold the inserted accessories in place firmly. Unlike other types of chuck there is, there is no need for a key for the opening and closing of the jaws, instead it makes use of another mechanism which is the turning of the chuck manually.