When dealing with batteries you measure their strength in mAh. You might think that a bigger battery will last long but this is not always the case. Most of the time when you select a battery you can choice one but sometimes the instruction manual will indicate a specific type that works best. Some tools come with a battery built in and you will just plug in the tool. Changing the battery in this case is not an option.
When you purchased a product like a Cordless Drill, you will see that the charger for the NiCad Batteries also accept NiMH batteries because of the identical shapes which fits in the charger but do not charge the batteries with a different battery type rating or this may cause damage and sometimes melt the charger that will cause a fire.
Another thing to consider the how to dispose of your batteries when they stop working. Rather then throwing them in the dump you should recycle them so they do not create unnecessary harm on our planet.
While the old rechargeable NiCad batteries have been on the market for many years they had their short comings. Advances in technology have enabled the manufacturers to get around the problem of the NiCad batteries memory issues. Memory issues you might say, yes the old batteries would lose life if you did not charge them properly. You see if you did not discharge the NiCad battery correctly then it would get a shorter and shorter life span which would be frustrating to the end user. Now the newer batteries do not have these issues much to the relief of customers who simply want their tool to work.
The newer batteries use advanced technology and are called NiMH batteries. These are preferred over the older style batteries. Several of the reasons are that they have no memory so they maintain long life as long as you use them. They have more power and longer run times with shorter charge times. Now days you can charge a battery in a couple hours and get several hours of use out of it. These advances in battery technology have made the life of the customers much more pleasant and productive.
With proper care and maintenance your power tool batteries will last a long time. Just be sure to read your users manual and not ignore it. It really was written to help you get the most out of your power tool like a Bosch circular saws. If you should travel with your tool be sure that you get adaptors to help you get connected to the proper power supply as needed. This lets you take advantage of working where you need to.
