Ryobi ONE+ Battery Guide: Which Battery Fits Your Ryobi Tool?

The Ryobi ONE+ Platform: 300+ Tools, One Battery System

Ryobi's 18V ONE+ platform is one of the most versatile tool systems available, with over 300 tools that all use the same battery connection. Whether you have a drill, saw, blower, or even a pressure washer, they all use the same 18V ONE+ battery. This guide explains every battery model and helps you choose the right one.

The Ryobi ONE+ Battery Lineup

All Ryobi ONE+ batteries use the same 18V connection and are fully cross-compatible. The difference is capacity (runtime) and whether they're standard ONE+ or high-performance ONE+ HP.

P102 (1.5Ah) — The compact option. At 1.5 amp-hours, this is Ryobi's smallest ONE+ battery. It's lightweight and perfect for light-duty tools or when you need a smaller battery for balance. Best for: occasional use, light-duty tools, or as a backup battery.

P107/P108 (4Ah) — The most popular choice. At 4 amp-hours, these batteries offer excellent balance between size and runtime. The P107 and P108 are essentially the same — Ryobi sometimes uses different model numbers for packaging variations. This is Ryobi's best-selling battery because it works well for most tools without being too heavy. Best for: daily use, most Ryobi tools, homeowners and DIYers.

P197 (4Ah HP) — High-performance version of the 4Ah battery. Same capacity as the P107/P108, but with ONE+ HP technology that delivers more power to HP-designated tools. If you have HP tools, this battery will give you better performance than the standard P107/P108. Best for: users with ONE+ HP tools who want maximum performance.

PCL240B (3Ah HP) — High-performance compact battery. At 3 amp-hours with HP technology, this battery offers a good balance of power and size. It's smaller than the P197 but still delivers HP performance. Best for: HP tools when you want a lighter battery, or when you need HP performance in a more compact form.

ONE+ vs ONE+ HP — What's the Difference?

ONE+ HP (High Performance) batteries are designed to deliver more power to tools marked with the HP designation. HP tools can draw more current, and HP batteries are built to supply that extra power without overheating or voltage drop.

Regular ONE+ batteries work in all Ryobi tools, including HP tools, but they won't deliver the full power potential of HP tools. They're perfectly fine for most users and most tools.

ONE+ HP batteries work in all Ryobi tools too, but they deliver extra power to HP-designated tools. If you have HP tools and want maximum performance, HP batteries are worth the upgrade. If you only have standard ONE+ tools, regular batteries are fine.

Which Ryobi Battery Is Right for You?

Casual/light use: P102 or P107. The P102 is fine for occasional projects. The P107 (4Ah) is worth the small price increase if you use tools weekly — it's the best value for most users.

Regular use: P108. The 4Ah capacity is perfect for most Ryobi tools and most users. It's Ryobi's most popular battery for good reason.

Heavy or HP tools: PCL240B or P197. If you have HP tools, these batteries will give you better performance. The PCL240B is more compact, while the P197 offers the same capacity as the P108 but with HP technology.

Can I Use Any ONE+ Battery in Any Ryobi Tool?

Yes — all 18V ONE+ batteries are fully cross-compatible. You can use a P102 in a circular saw, a P108 in a drill, or a P197 in a blower. The battery will work. The only consideration is runtime (higher capacity = longer runtime) and whether you want HP performance for HP tools.

This cross-compatibility is one of the biggest advantages of the ONE+ system. You can buy one battery and use it across all your Ryobi tools, or mix and match batteries based on what you need for each task.

Finding Your Replacement

All Ryobi ONE+ batteries work in all Ryobi ONE+ tools. For most users, the P107 or P108 (4Ah) offers the best balance of runtime and value. If you have HP tools, consider the P197 or PCL240B for better performance. And if you want maximum runtime, look for higher-capacity options like the P194 (6Ah) or P195 (9Ah).

Use WhatBatteryFits.com to find compatible batteries for your specific Ryobi tool model, or browse all tool batteries to compare options.