If your looking for a cordless weed wacker online you may be overwhelmed the endless number of product choices descriptions and feature options. Hopefully after reading this you will have a better idea of the type of cordless string trimmer that will best suit your needs.
Basically there are 3 categories of battery operated trimmers. The first is for very light-duty tasks. This tool is the lightest duty tool and is optimized for cutting lawn grass. If you are looking for a trimmer to edge your suburban lawn, this will do the job quite nicely. Because of the lower power requirements of this job, these units are lighter in weight and lower in cost than the heavier duty models. Typically these trimmers will be powered with either 12-volt or 18 volt batteries. One attribute to be aware of and investigate prior to purchasing is the run time between charges. This can vary between 10 minutes and 45 minutes, depending on make and model.
The mid-range weed wackers or trimmers are heavier in weight and can handle chores requiring more power. Because of their increased power they will employ heavier string and cut a wider swath. These trimmers are versatile in that they can trim either weeds or lawn, though they may not be optimized for either. If you are only interested in a trimmer for lawn use, you will probably want to opt for the lightest unit that has enough run time for your task. The lighter trimmers are easier to maneuver and are noticeably less fatiguing to use.
Next up on the power scale would be the be cordless weed wackers designed for chopping weeds. Again look for user experience when it comes to battery life. Other specifications to note would be the cutting diameter (a 10″ diameter swath is more that 50% faster than an 8″) and weight. These wackers can be powered with batteries up to 36 volts and have power comparable to gas-powered units.
Though there are a multitude of models available, if you first decide what tasks your cordless weed wacker will be asked to handle, the choice becomes much easier. Remember if you purchase a higher powered model than is required, not only will your pocketbook pay the price, but your back will as well.