Powilling 40V 6.5Ah Replacement for Ryobi 40V Battery and Charger Kit Compatible with Ryobi Battery 40 Volt OP4026 OP40601 OP4050A OP4040 OP4030 OP4050 with OP401 40 Volt Charger

What It Is

The Powilling 40V 6.5Ah battery is an aftermarket replacement for Ryobi’s 40V lithium-ion battery platform, designed to power Ryobi 40V cordless lawn mowers, string trimmers, blowers, chainsaws, and other yard tools that accept the standard Ryobi 40V slide-on battery interface. It also includes a compatible OP401-style 40V charger.

Fitment & Compatibility

Check your tool’s voltage and connector: This battery only works with Ryobi 40V tools. It will not fit Ryobi 18V or 36V systems. The slide-on mounting tab and terminal layout match Ryobi’s standard 40V battery pack.

Model numbers confirmed compatible: OP4026, OP40601, OP4050A, OP4040, OP4030, OP4050. Also works with most Ryobi 40V tools that originally used any of these packs. If your tool uses a different battery shape (e.g., the older “stick” style or a different locking tab), it will not fit.

Check your charger: The included charger is compatible with Ryobi 40V batteries that use the OP401 charger standard. If you already own a Ryobi 40V charger, you can use it instead. Do not attempt to charge this battery with a Ryobi 18V or 36V charger.

Physical dimensions: The battery measures roughly 5.5 x 4 x 3.5 inches and weighs about 2.5 lbs. Ensure your tool’s battery compartment has enough clearance (especially on older or compact models).

Key Things to Know

• Quality vs. OEM: This is an aftermarket battery, not made by Ryobi. Expect slightly shorter runtime and a higher chance of cell degradation over time compared to genuine Ryobi 40V 6Ah packs. Read recent reviews for failure reports.
• Installation: No tools required. Slide the battery onto the tool until it clicks. The charger plugs into a standard wall outlet and charges the battery in 2–3 hours.
• Common gotcha: Some users report the battery does not lock in as securely as OEM packs—test it before starting your mower to avoid it falling off during use.
• Warranty: Powilling typically offers a 1-year warranty, but return process may be slower than Amazon’s own return policy. Keep your order details.

Should You Buy It

If you need a spare or replacement 40V battery for your Ryobi lawn mower or trimmer and want to save roughly 30–40% compared to the genuine Ryobi 6Ah pack, this is a solid budget option. However, if you rely on the tool for heavy-duty or frequent use, stick with an OEM Ryobi battery for better reliability and warranty support. Best for light-to-moderate yard work or as a backup.