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Model # OP242A

Internet # 202545351

Lithium 24-Volt Cordless Battery for 24-Volt Cordless Tools

This item has been discontinued.
The Home Depot no longer carries this specific product.

$119.00 /each




Model # OP242A

Internet # 202545351

Power your Ryobi 24-Volt Cordless Tools with this lithium battery. It works well when you need an extra battery for larger demands, thanks to its fade free power. It has an easy to read onboard battery gauge to inform you how much charge is left in the battery.

California residents: see  Proposition 65 information

  • 24-volt lithium battery
  • For use with Ryobi 24-volt cordless tools, including the RY24201 and RY24601
  • Back-up power for large jobs
  • 1-hour quick charge
  • 3-year warranty
  • 24-volt lithium battery
  • For use with Ryobi 24-volt cordless tools, including the RY24201 and RY24601
  • Back-up power for large jobs
  • 1-hour quick charge
  • 3-year warranty

Info & Guides

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Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Fits brands 
Fits models 
RY24201 and RY24601 
Part Type 
Cordless Battery 
Used with equipment type 
String Trimmer 
Voltage (volts) 
Warranty / Certifications
Manufacturer Warranty 
3 Year 


Rated 3.1 out of 5 by 40 reviewers.
Rated 2.0 out of 5.0 by Battery Dead? Try this fix Like everyone else, my battery went dead. Left it off the charger in the winter for a month. Plugged it in and charger indicated battery was defective. So, I took the battery apart - there was no way I was going to spend $119 for a battery. Using a voltmeter, I noticed that the T2 terminal and positive terminal registered small voltage when tested. However, when testing the negative and positive terminals there was no voltage. When I tested the negative wire before it entered the circuit board and positive terminal it registered voltage. My solution was to splice in a wire from the wire going into the center of the circuit board to the wire coming out of the circuit board (circumventing the circuit board). Put the battery back together, plugged it in the charger and it indicated testing for a few minute; then it turned green and started charging. Battery works fine now. I uploaded an simple diagram of my fix. The blue line is the wire I spliced in. As a previous poster indicated, you must keep this battery on the charger. I think what happens as the previous poster indicated, is that the internal circuit board draws a little bit of power constantly. When the power in the battery gets too low (dead), the charger registered it as "defective." Is it a design flaw with the circuit board? Probably. From my understanding, lithium ion batteries have no memory and can be charged many thousands of times without a problem. Hope this helps someone! April 23, 2015
Rated 5.0 out of 5.0 by Folks Battery has a 3 yr warranty! Simple keep your receipt. Call 1-800-HomeDepot, they will refer you to a local tool repair shop. Take battery & charger in & viola! Walk out with new battery or charger. On top of that the edger trimmer combo comes with a 2 yr warraty & for $10 I opted to purchase a 2 yr Home Depot replacement plan. Yes keep battery in charger during winter if you have 2 batteries alternate then monthly. Mine is workin like a charm. I was told that RYOBI was discontinuing their 24volt tools. So I opted to call Home Depot which in turn they transfered the call to RYOBI customer service. Folks keep your receipts & since they dont use ink on their receipts make a copy & fold in the receipt. August 5, 2015
Rated 2.0 out of 5.0 by did fixit followed the directions given by fixit guy. Worked like a charm. battery charged in less than an hour. Would not recommend till this flaw in the battery is fixed. I will not spend 119.00 for a new battery that will probably do the same thing. May 10, 2015
Rated 5.0 out of 5.0 by You MUST keep this charged over the winter! OK. Here's the deal, people. I'm not saying it's fair or that you necessarily should have known or anything like that. But this is the way that it is: if you have this 24V battery and associated tool(s) and charger, you MUST occasionally re-charge the battery over the winter or whenever it is sitting idle. The protection circuitry constantly draws a small charge from the battery, and will, over a couple months, drain it down to nothing. You can not let it sit at nothing for a long time. If you do, you WILL KILL IT. So, over the winter, every so often, I push the button to check the charge. When it gets down to one or two bars, I give it a recharge. I've had my 24V string trimmer for two years now, and the battery is just as powerful and long lasting as when I first got it. And it's because I have made sure to keep it from sitting totally discharged. Li-ion chemistry has issues when the voltage between anode and cathode gets too high (it explodes!) and when it gets too low (it reacts and ruins the battery and can vent when recharged after this). This is why all Li-ion batteries sold to consumers have protection circuitry to guard against over-voltage and short-circuit. Unfortunately, it can't guard against under-voltage besides preventing power-draw from the terminals. So if it gets drained down, then sits, the protection circuitry will continue to draw power. And will ruin the battery. So keep these things charged during off-times if you want them to last! June 1, 2014
Rated 4.0 out of 5.0 by great purchase The person helping me on line was a blessing at the end of a long day. September 24, 2015
Rated 1.0 out of 5.0 by Battery died after 2 years of light use And the replacement, at $104 now, is more than the cost of a new trimmer with 18 v battery and charger. Plus Home Depot didn't even carry the 23-volt replacement in the store. March 28, 2015
Rated 1.0 out of 5.0 by Terrible Battery The weed eater is great........................battery is the worse thing I have ever seen......had it for one summer....if I would have known this I would not have bought it!!!!!!!!!!!!!!......oh but wait there is can buy a new one for 119.00 a whole new weed eater is only 139........COME ON RYOBI................LETS GET IT TOGETHER!!! May 26, 2014
Rated 3.0 out of 5.0 by hard to find I could not find the 24 volt battery in any local stores; had to order on line. The price was very high and I probably could have bought the 18 volt with a new trimmer for about the same money. I really like the performance of the 24 volt powered trimmer. August 17, 2015
  • 2015-10-04T11:44:35.330-05:00
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