Ultraxxis P108 18V Replacement Batteries, 6.0Ah Lithium-Ion, 2-Pack
Product description
For a project that uses Ryobi 18V cordless tools throughout the day, this two-pack gives you a second replacement battery to rotate into use. Each lithium-ion pack is rated at 6.0Ah.
The LED indicator displays remaining power, making it easier to see when a battery is getting low and plan a recharge.

With two packs in one set, you can keep a charged battery available while the other is out of the tool. The batteries are designed for Ryobi 18V cordless tools and replace several listed Ryobi battery models.


Everyday use

Use these batteries with compatible Ryobi 18V cordless tools for jobs around the home, workshop, or job site. Their 6.0Ah capacity and 18V rating make them a replacement option for users whose current packs need replacing. The two-pack format also supports a simple rotation: use one battery while keeping the other ready for the next task, provided it has been charged.
The built-in LED indicator shows residual power, so you can check the battery before starting a task and prepare to recharge as needed. For routine care, remove the battery before assembling parts, adjusting or cleaning a tool, or putting it away for an extended period. Store the packs in a clean, dry, cool place away from heat sources and metal objects.



Product specs
- Type: Lithium-ion replacement battery
- Voltage: 18V
- Capacity: 6.0Ah / 6000mAh per battery
- Quantity: 2 batteries
- Compatibility: Ryobi 18V cordless tools, replacement for P102, P103, P104, P105, P107, P108, and P109 batteries
- Indicator: LED residual-power indicator
- Protection: Overcharge, over-discharge, over-voltage, over-current, and overheating protection
- Included: Two 6.0Ah replacement batteries and user manual
- Warranty: 1 year

What stands out


This set pairs a clearly stated 6.0Ah capacity with an at-a-glance power indicator. That combination is useful when choosing a replacement for compatible Ryobi 18V tools: the capacity identifies the battery rating, while the indicator helps you keep track of remaining power during a task. Built-in protection against overcharging, over-discharging, over-voltage, over-current, and overheating adds safeguards during battery use and charging.

The replacement list includes several commonly identified Ryobi battery references, including P108, along with P102, P103, P104, P105, P107, and P109. Check your existing battery reference against this list before selecting a replacement. Compared with buying a single pack, a two-battery set offers a second pack to rotate into use, which can be useful when a project involves repeated work with compatible cordless tools.
Buyer feedback is positive about fit and use with Ryobi tools, while reports on battery life, charging, and power are mixed. The published 6.0Ah rating and LED indicator provide practical details to consider when choosing and monitoring these replacement packs.

Should you buy it?
It suits you if you use compatible Ryobi 18V cordless tools and want two lithium-ion replacement batteries in one set. The listed battery references help you match the packs to your existing system, and the 6.0Ah rating, LED power indicator, and built-in protection features make the key purchase details easy to assess. For routine tool work where a second battery can be kept ready between tasks, this two-pack offers a straightforward replacement setup.
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