Hedge & Grass Trimmer Battery Runtime Calculator

Simply estimate how long your hedge or grass trimmer battery will last. Choose your tool, the battery capacity, and how heavy your workload will be to estimate realistic runtimes before you start trimming. Learn How Long Your Cordless Tools Last

How Long Can You Trim Before the Battery Quits?

You grab your trimmer, ready to tidy the garden, and five minutes on the battery glows red. Ring any bells? With this handy calculator, you can figure out just how long your hedge or grass trimmer battery will run — before you even pull the trigger.

Why Runtime Matters

Cordless trimmers are so handy, but run time is wildly inconsistent depending upon what you're trimming. A speedy spruce-up of edges doesn't use much power, while wrestling with thick or soggy growth drains a battery faster than you know it. Knowing how long your charge is going to last means you can plan ahead, change batteries beforehand, and not have that unevenly trimmed hedge appearance.

How It Works

Just select your tool category, Hedge Trimmer or Grass Trimmer, enter your battery's Ah rating, then choose the workload: Light, Medium, or Heavy.

• Light Workload: Occasional trimming, dry cutting, easy going.
• Medium Workload: Continuous cutting on average growth.
• Heavy Workload: Thick, wet, or overgrown areas that demand power.

The calculator uses tested averages of around 13 minutes per Ah for hedge trimmers and 11 minutes per Ah for grass trimmers in light usage. It will automatically adapt based on workload so that you will have a more realistic estimate that you can rely on.

Plan Ahead and Power Smart

Whether you cut weekly or just a season, forward thinking avoids frustration. Do this calculator first, find out if you'll require a standby battery, and cut uninterrupted, no start-stops halfway through the hedge.

Last Word

Gardening should be smooth, not stop-start. With this simple runtime calculator, you can predict how much go you'll get from your trimmer battery and keep your outside flow uninterrupted.

Was your actual result closer to our estimate? Tell us in the comments, your input helps refine the figures for gardeners everywhere.