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Are RYOBI 40V and 36V Batteries Interchangeable?

RYOBI’s 40V compatibility claim applies to 40V products; it does not establish a 40V/36V cross-fit. Check your tool model and manual before buying or charging a battery.
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No—do not assume RYOBI 40V and 36V batteries are interchangeable. RYOBI says tools and batteries are designed for specific voltage ratings. Its US 40V product listing confirms compatibility with RYOBI 40V products, but does not establish compatibility with 36V tools. Check the voltage and exact model on your tool before buying or charging a battery.

Why 40V and 36V are separate compatibility claims

RYOBI Australia’s battery guidance says tools and batteries designed for different voltage ratings are not interchangeable: How to choose the right 36V battery. Separately, RYOBI’s US listing says, “RYOBI 40V batteries are compatible with any RYOBI 40V product.” That claim is limited to the 40V platform; it does not say a 40V battery works in a 36V tool.

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RYOBI UK describes a 36V MAX POWER battery and charger range, while RYOBI US markets 40V products. These regional labels do not establish that every 36V and 40V model is electrically or mechanically identical. The official pages cited here do not provide a universal conversion chart, so rely on the platform and model identified for your particular tool.

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How to check the right battery for your tool

  1. Read the voltage printed on the tool’s rating label. Do not identify the platform by appearance or memory.
  2. Write down the exact tool model and check its manual or official product page for the specified battery platform.
  3. Match both the battery and charger to the platform and model specified for that tool. RYOBI UK describes its 36V MAX POWER charger as compatible with 36V MAX POWER batteries: How to Choose the Right RYOBI Batteries and Chargers.
  4. If a seller claims a 36V/40V cross-fit, ask the seller or RYOBI support to confirm it for your exact tool and battery models before purchasing. The cited manufacturer guidance does not verify a universal cross-fit.

What about chargers and amp-hour ratings?

Use the charger specified for the battery’s platform and model in the product manual. The available manufacturer guidance supports 36V MAX POWER charger use with 36V MAX POWER batteries; it does not support charging a 36V battery with a 40V charger, or vice versa.

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  • 【Basic Specification】100% Brand New | Voltage: 40V | Capacity:7500mAh |Replacement OEM# OP4026
  • 【Wide Compatibility】Replacement for Ryobi 40V Battery OP4050A OP4015 OP40201 OP40261 OP4030 OP40301 OP4040 OP40401 OP4050 OP40501 OP40601 OP40602 OP4060A ; Compatible with Ryobi Original electronic device RY40200 RY40403 RY40204 and Chargers OP401 ZROP401
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A matching amp-hour (Ah) rating is not proof of compatibility. Capacity alone does not identify the platform or confirm fit. Check the voltage and model requirements first.

Choosing a replacement battery

If your tool is confirmed to be a RYOBI 40V model, the RYOBI US listing identifies the 40V 4Ah Lithium High Performance EDGE Battery as model OP40406TA: 40V 4Ah Lithium High Performance EDGE Battery. Treat it only as an example for a confirmed 40V tool; check the exact model, regional listing, and capacity requirement before purchase. It is not established as suitable for a 36V tool.

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  • 【LED Display】Built-in 4 LED indicator lights, Press the button to show the remaining capacity of the battery status. Also displays remaining run time and reduces the risk of downtime work and promptly remind you that you need to charge

For a 36V tool, use the battery model specified for that exact tool in current regional documentation. A 2019 RYOBI Nordic catalogue shows that RYOBI marketed a 36V garden-tool platform in that region, but it is historical context, not current compatibility guidance: RYOBI OPE Catalogue 2019 Nordics.

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  • 【Convenient Use】4 LED indicators for users to monitor power. Display remaining run time and reduce the risk of downtime work and promptly remind you that you need to charge.
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40v 7.5Ah OP4026A OP40601 Battery Replacement for Ryobi 40v Battery OP4050A
  • 【Basic Specification】Brand New | Voltage: 40V | Capacity:7500mAh |Replacement OEM# OP4026
  • 【Wide Compatibility】Replacement for Ryobi 40V Battery OP4050A OP4015 OP40201 OP40261 OP4030 OP40301 OP4040 OP40401 OP4050 OP40501 OP40601 OP40602 OP4060A ; Compatible with Ryobi Original electronic device RY40200 RY40403 RY40204 and Chargers OP401 ZROP401
  • 【Safeguard】No memory effect can be charge at any time. Intelligent Protection against potential damage caused by over-charging, over-discharging, over-voltage, over-current, short-circuit.
  • 【LED Display】LED indicator lights show the remaining capacity of the battery status. It displays when the battery is full charge or when it need to be charged so that ensure optimum performance and extend life
  • 【Safe & Reliable】Safe guard features against incorrect voltage, battery overload, short circuit, internal overheating. Advanced battery lithium cells
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  • 【Wide Compatibility】Replacement for Ryobi 40V Battery OP4050A OP4015 OP40201 OP40261 OP4030 OP40301 OP4040 OP40401 OP4050 OP40501 OP40601 OP40602 OP4060A ; Compatible with Ryobi Original electronic device RY40200 RY40403 RY40204 and Chargers OP401 ZROP401
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  • 【High Capacity】 Upgrade to 7.5Ah high capacity, 2X longer than run time the standard 3.0Ah; No memory effect, can be charged or discharged as needed without loss of capacity
  • Top A Grade Battery cells, optimized performance and overload protection using total system communication between tool, battery and charger

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

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