The cutting capacity (or “blade gap”) refers to the space between the distance found between the teeth of the blade. In general, the longer the blade, the faster it will cut… but the more difficult it will be to control as well. The majority of people do find 20 inches to be sufficient for most of their yard work, so don’t feel you need to spend more on a longer blade. What size do YOU need? A simple rule of thumb is to opt for a blade that’s only slightly wider than the width of the hedge you’re trimming. The majority of battery powered trimmer blades are 20-24″ long (in fact, all on this “best of” list fit into that range). There is really no “perfect” blade length. Don’t feel you NEED to get “the best” (which comes of course with a higher price tag) if you’re not going to be using it regularly. However, not everyone will need the strongest battery as not everyone will be doing the same chores with it. ( See more.)Īll this is great to know, especially if you are wanting a battery powered trimmer with a very strong, powerful battery that will keep you working longer between recharging. This means that you can in theory expect Battery B to run the hedge trimmer almost 4x as long as Battery A, OR that Battery B could the hedge trimmer 4x faster or with more power than Battery A for the same length of time. In this example, you can see how Battery B has a significantly higher energy capacity than Battery A. To do that, multiply the Amp Hours by the Voltage. If you want to compare the strength of different batteries, you need to compare the Watts. Unfortunately the companies do not list Watts – they usually list Ah and V though. A bigger “fuel tank” (with energy being the fuel), the higher the energy you can know the battery has. And w hat is a “Watt”? Again in basic terms, it’s the size of the battery’s “fuel tank”. You need both the Ah and the V to find the “Watts”. Voltage (V) in basic language, is the power that pushes the current through the battery. A higher number means a higher energy charge. Ah basically refers to the amount of amperage (current) that the battery delivers in a one hour time frame. You’ll see 2 different sets of numbers on the battery: Ah and V. So it’s not a bad idea to zero in on one (or two) brands for your entire tool collection to save some money.
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