6000mAh Replacement for Ryobi 40V Battery, Compatible with Ryobi 40 Volt Lithium Battery OP4020 OP4040 OP4050 OP4050A OP4060, Compatible with 40V Cordless Power Tool

What It Is

This is a 6000mAh aftermarket replacement battery for Ryobi’s 40V cordless platform. It powers any 40V Ryobi lawn mower, trimmer, blower, or other outdoor tool that accepts the slide-on battery form factor.

Fitment & Compatibility

Must check before buying:

• Model numbers: Works with Ryobi OP4020, OP4040, OP4050, OP4050A, and OP4060 batteries.
• Tool compatibility: Fits all Ryobi 40V tools that use the standard slide-on battery (e.g., mowers, string trimmers, leaf blowers, chainsaws).
• Physical size: Same dimensions as OEM 40V batteries – should slide in without modification.
• Voltage: 40V nominal – do not use on 18V or 36V tools.
• Charger: Works with Ryobi 40V chargers (model numbers starting with OP40C or OP4080).
• Important: This is an aftermarket (non-OEM) battery. It may not have the same overcharge protection or cell quality as genuine Ryobi.

Key Things to Know

• Quality concerns: 3.3-star rating with only 5 reviews suggests limited feedback. Aftermarket batteries often have shorter lifespan and may swell or fail faster than OEM.
• Installation: No tools needed – just slide onto the tool until it clicks.
• Charging: Use only a Ryobi 40V charger. Do not force it into a different voltage charger.
• Warranty: Typically no warranty or a short one (check seller). If the battery fails, you’re out the cost.

Should You Buy It

Buy this only if you need a cheap spare battery for light, occasional use and understand the risks of aftermarket cells. For heavy or frequent mowing, invest in a genuine Ryobi 40V battery (OP4060 or OP4050A) for better reliability, safety, and warranty support.