RYOBI 40V Replacement Compact Battery Charger OP404 — OEM-compatible with thermal protection

The RYOBI Lithium-ion 40 Volt Replacement Compact OEM Battery Charger OP404 is a compact, factory-compatible charger designed to safely and efficiently recharge 40V RYOBI batteries.

If you need a dependable charger for your RYOBI 40V tools, the OP404 offers a space-saving design that restores lithium-ion packs for continued use with compatible outdoor power equipment. This unit is built to OEM specifications so it fits the same battery platforms and provides predictable charging behavior without extra bulk. It’s suited for homeowners and pros who want quick, routine recharges and a charger that matches the original toolset’s performance.

How quickly will the OP404 recharge my 40V battery?

The OP404 delivers steady charging tuned for RYOBI 40V lithium-ion packs, balancing speed and battery longevity. Actual times vary by battery capacity and state of charge, but this compact charger is optimized for everyday power cycles.

• Engineered for RYOBI 40V battery chemistry and connectors
• Typical recharge times depend on battery amp-hour rating
• Designed to avoid excessive heat during normal charging

Is this charger compatible with my existing RYOBI 40V batteries?

The OP404 is an OEM replacement intended for use with RYOBI 40V lithium-ion batteries that share the same physical connection and voltage range. Always check your battery label to confirm model compatibility before purchase.

• Fits standard RYOBI 40V battery packs and slide-on connections
• Matches OEM electrical specifications for safe operation
• Recommended as a direct replacement for worn or lost chargers

What safety and protection features does this charger include?

The OP404 includes the safety considerations you expect from a factory-compatible charger—circuit protection and thermal management to reduce risk during regular use. It’s intended for normal household and jobsite environments when used according to instructions.

• Integrated protection against overcharging and short circuits
• Thermal design to manage normal heat buildup while charging
• Durable housing suited for workshops and storage between uses

How compact and portable is the OP404 for storage or travel?

The charger’s compact footprint makes it easy to store on a shelf, in a vehicle, or in a tool cabinet without taking up much space. It’s lightweight and straightforward to carry as a spare or replacement for mobile crews.

• Small form factor saves space in workshops and trucks
• Lightweight for convenient transport between sites
• Simple cord management for tidy storage

Who is this for: The RYOBI OP404 charger suits homeowners, hobbyists, and tradespeople who already own 40V RYOBI lithium-ion batteries and need a reliable OEM-style charging solution. Choose this unit if you want the convenience of a compact charger that matches the original equipment’s fit and charging behavior. If you require faster professional rapid-charging or multi-bay systems, consider higher-capacity chargers designed specifically for heavy-duty, continuous use.