Best Battery Charger for Power Tools: Universal Cordless Drill/Driver & 18V Makita
The best battery charger for power tools are universal ones. They work with all types of batteries including those from different brands. However, there are some drawbacks to using them. For example, they require a special cord and have a limited range of charging current. Also, if you use them with the wrong type of batteries, they may not provide enough energy to run your tools properly.
In this article we will try to explain what are the advantages and disadvantages of these chargers. We’ll also give tips on how to choose the right one for your needs. If you want to learn more about how to select a good battery charger for power tools, read our article How To Choose A Good Battery Charger For Power Tools .
Universal Cordless Drill/Driver & 18V Makita Battery Charger Comparison Table:
Pros Cons Lowest cost High capacity Relatively long charging time Can’t charge NiMH batteries Very expensive Universal charger requires special cord and limited range of charging Current limitation varies depending on type of battery Used to recharge Lithium Ion (Li-Ion) batteries High price; limited number available Limited range of charging current; cannot charge LiFePO4 or LiPoly batteries Can only charge Lithium Ion (Li-Ion) batteries
How Does A Universal Charger Work?
The universal battery charger is similar to the battery in your cell phone in that it has a built-in charging circuit. When you put a battery in your cell phone, the circuit detects what type of battery it is. It then selects the correct charging current and voltage to recharge it. The universal charger also detects what type of battery it is by measuring the voltage of each cell. Once the battery type is identified, the charger sends a charging current to that cell until it reaches the correct voltage. Once the battery is fully charged, the charging circuit stops sending current to the battery.
How To Choose A Good Universal Charger
The most important factors when choosing a good universal charger are:
Capacity – How many different types of batteries can you recharge with one charger?
Charging current – How much power does it send to the battery? The first factor is very easy to understand. The more batteries a charger can charge, the more useful it is. If you only own one type of battery (or one size) then a charger that can charge only that size is okay. But if you have multiple types or sizes, a charger that can charge all of them would be better.
The second factor is a little more complicated. It has to do with how much power the charger sends to the battery. The size of the battery affects how much power it needs to recharge. For example, a 5.0Ah battery requires less charging current than an 8.0Ah battery even though they contain the same amount of energy.
Because of this, it’s important that you know how much current your battery needs in order to be fully charged. The higher the current, the faster it charges.
Not all universal chargers provide a wide range of charging current – some only provide up to 0.5A, which is fine for smaller capacity batteries. However, for some high capacity batteries you may need to find a charger that provides 1A or even more.
Other factors to consider are: Safety features, such as overcharge protection. Multiple charging slots (although these are not always useful). Also, some manufacturers have their own models of universal battery charger. We have not tested these, but they may perform better than a cheaper no-name brand that we have encountered.
The last thing to consider is how you want to charge your batteries. We will discuss this in the next section.
Do I Need A Dedicated Charger?
The short answer is no, you do not need a dedicated charger. Any charger that can provide the right charging current (as described above) will work fine. There are, however, multiple ways to charge your battery and it’s up to you which one is best.
Wired charger (or direct electric current)
This is the simplest and most common way to charge your battery. Simply plug your battery into any wall outlet (outlet must be able to supply correct voltage) or USB port and it will start charging.
Advantages: Very easy to use.
Disadvantages: The battery will only charge when it is physically connected to the charger. The battery itself will not charge automatically (unless you get a smart charger, which is not what we recommend). The battery will stop receiving power once it is fully charged. This means you must remember to unplug the battery once it’s done charging.
Solar Panel Charger
This charger consists of a large solar panel and a storage battery. It is designed to be able to provide power in areas that don’t have access to electricity. You can also use it to charge your battery.
Sources & references used in this article:
- Battery operated power wrap tool (PR Kilmer, DS Chapin – US Patent 4,751,452, 1988 – Google Patents)
- Automatic selfcharging power tools (R Bailey – US Patent App. 10/301,951, 2003 – Google Patents)
- Household and onboard vehicle power outlet-based battery charger for portable telephone (M Tomura, T Shigeta – US Patent 5,256,955, 1993 – Google Patents)
- Battery charger with a terminal protector (Y Shibata, J Masuda – US Patent 6,346,793, 2002 – Google Patents)