In Brief: How Often Should I Replace My Batteries?
You should replace your chainsaw batteries when the operating time lowers significantly. If the voltage drops when tested with a multimeter, you will need to replace the battery soon. Lithium-ion batteries last for a minimum of 1000 cycles or 3 years, with manufacturer warranties to match. Proper maintenance and charging habits extend battery life.
As the charge capacity of the battery lowers with age, you will reach a point where it will not hold enough power for you to get anything done.
This short guide will tell you how to know when your chainsaw batteries need to be replaced and how long you can expect a standard lithium-ion battery to last.
How Often Should I Replace My Batteries?
The first sign that you should replace your chainsaw battery is when you notice a significant drop in the amount of charge the battery can hold.
If you were able to run the tool for a few hours off a full charge when you got the battery, but that is no longer the case, you know that your battery approaches the end of its life.
To know for sure, all you need is a multimeter.
Fully charge the battery, then use the multimeter to check the voltage by touching the negative probe to the negative terminal and the positive probe to the positive terminal.
The voltage reading should be at or above the voltage listed on the battery. If it is not, then you will need to replace it sooner rather than later.
Lithium-ion batteries are the most common type nowadays.
They are rated for at least 1000 cycles in most instances, with an estimated life of 3-6 years depending on how often they are used – and some other factors relating to care and maintenance.
At a minimum, you should expect your battery to last for 3 years. Manufacturers tend to offer a 2- to 3-year warranty on lithium-ion batteries, which indicates the minimum operating life.
If you want to extend the life of your lithium-ion cordless tool battery, here are some steps you can take:
Do not run the battery to empty. Unlike with older battery types, fully depleting a lithium-ion battery can damage it.
Allow the battery to a chainsaw to room temperature after use before you charge it.
Fully charge the battery after every use.
Ensure you keep the battery in its effective temperature range, especially when charging. The safe temperature range for most lithium-ion batteries is 40° F to 105° F.
We hope this guide has helped you understand how often you should replace your batteries and how to extend your chainsaw battery life.
If you have any questions or comments about this guide or batteries in general, please feel free to leave them in the section below.