As of this minute, lithium ion batteries offer the best cordless tool power in the biz. Period. While better than the alternatives, though, these batteries can also be finicky. They can be frustrating and unforgiving, but despite that touchy temperament, there are a few things you can do to keep on the good-side of these essential accessories. - Incorporate the following few tips into your routine to keep your batteries working better for longer.
Weight - this is an important factor which you must keep in mind. You will find that some drills are lighter than the rest and hence you can hold onto these for a longer period of time and you will also be able to operate it for a longer amount of time. If you wan tot work on an installation project then these ones are the best for you. Weight is something which you really need to pay attention to. If you see that it weighs a few oz you will think that it isn't a big deal but then after you hold onto it for a long time then you will start to feel the difference.
Why is this important? If you have a relatively new PC the only problem you will get are error messages relating to the clock on start up. No big deal. If your PC is older then a low battery could be a nightmare. I had a PC which once lithium stocks canada every few months refused to boot. Rather than take the PC in for repair or start replacing parts myself the first thing I did was look at the BIOS settings. It was soon obvious that the BIOS settings were corrupt (wrong bus speed). I put a volt meter on the battery and sure enough it was reading 2.2 volts.
Batteries - Many of the battery products found at the dollar stores are made with carbon zinc, as opposed to lithium, so they do not last as long. Carbon zinc can also leak, thus doing damage to your electronics.
The Makita BDF452HW cordless drill comes with an 18-V Lithium battery stocks-ion battery and it charges in only 15 minutes. That's a much quicker charge time than almost any other drill you can find. Along with the quick-charge, the battery life is also very good so you don't really have to worry too much about it dying on you.
The battery will re-charge a little if placed on a hot surface, like a radiator. Never place a mobile phone battery on a hot surface! There is a significant chance of explosion with extreme heat. A modern Lithium mines Ontario battery becomes less efficient the warmer it gets.
Don't empty the battery completely. Modern safety circuits take care of this, but if you take it to 3% capacity, then leave it like that for three months, it's most probably going to be damaged and lose some of its maximum capacity. If you have to store it for a while, charge it to 60%, and leave it like that in a dry and cold place.
Another one of the best drills out there is the Panasonic EY7540LN2L model. It makes fastening jobs a cinch. It is lightweight, and ergonomic. It is extremely easy on the wrist and hands, so it is comfortable to use. It has long lasting lithium batteries for longer jobs. It is an impact driver, and is definitely versatile. It costs more than the other two drills, but it is still one of the best. Overall, any of the drills mentioned above would be a great cordless drill to own.