How Many Ryobi Batteries Do You Really Need?

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If you look at most rankings of the best power tool brands, Ryobi often appears near the top. This Home Depot-exclusive brand carries a reasonable price and works well for DIYers. When you start shopping for battery-powered Ryobi power tools, you'll notice that you typically can purchase them at Home Depot with or without a compatible battery included in the kit. (Some kits also include a compatible charger.)

What you'll quickly learn after you've purchased a few Ryobi tools is that you don't always need to buy a battery with a new tool. One of the key things to consider when buying Ryobi tools is that you can share one battery among multiple tools, as long as they use the same voltage platform and connection style. For example, the Ryobi 18V ONE+ power system has continued to feature the same battery platform system since 1996.

So, when do you have enough batteries for all your Ryobi tools? There is no one-size-fits-all answer to this question, but the way you work can help you decide. Some Reddit users report having three or four batteries. Others say they have around 10. There are some users who have 25 or more. Users say having several batteries is helpful when using a pressure washer or portable light that needs to run for hours, allowing them to do a swap and keep the tool running. People who do jobs where each tool is only in use for a few minutes can conveniently share a battery, meaning they probably don't need as many.

You might think that you only really need one Ryobi battery to do your DIY jobs. After all, you can run all your Ryobi tools that are on the same platform by swapping a single unit among them. However, one of the key reasons to have plenty of Ryobi batteries on hand is that you don't want to have to stop your project while you wait for drained batteries to recharge. If you have a couple of extra ones fully charged and ready to go, you can swap the dead one for a fresh one, allowing you to continue working.

Some people may try to survive with two Ryobi batteries, expecting to drain one and then charge it while using the second one. However, you might still get your work interrupted. Rechargeable batteries will heat up as they provide power to the tool. If you're stressing the tool with difficult work, such as cutting long grass with a Ryobi 40V mower, it will likely lead to extra heat buildup in the battery. The charger might not be able to recharge the dead one until it cools to a safe temperature. The charging process only works when the battery is within a certain temperature range, meaning the charger may flash error codes when you try to charge one that's overheated from use. The battery may need 15 minutes or more before it cools to a safe temperature for recharging, meaning you might want more than two batteries available.

One of the best ways to determine if you have enough Ryobi batteries is to think about your projects. If you find yourself having to interrupt your work to wait for them to charge, it's probably time to purchase an extra one or two. Some people just like having one or two more batteries than they think they need because they often forget to charge the dead ones between projects. Additionally, having an extra one or two on hand can help you avoid worries about how long Ryobi batteries will last before they need replacement. Ryobi supports them with a three-year warranty, but you may get more lifespan based on how you store and use them.

Some people decide how many batteries they need based on the number of Ryobi tools they own, always ensuring they have one connected to each tool. That makes it easier to just grab a tool and begin using it, rather than having to search for the battery. However, buying that many will drive up the cost of building a Ryobi tool collection. A Ryobi ONE+ 18V 4.0 Ah battery costs $89 at Home Depot. You'll pay $129 if you add a charger. You can usually save some money by purchasing a kit that contains a tool, battery, and charger together, though. For example, Home Depot offers a ½-inch 18V drill, 4.0 Ah battery, charger, and tool bag for a regular price of $169, which is only $40 more than buying the same battery and charger separately.