We tested the Pro 18V Battery CLM18VRB (4.0Ah version) against a standard 18V 3.0Ah OEM battery across three common tasks.
Rating: 4.2 / 5 Stars
The Pro 18V CLM18VRB is a workhorse. It isn't flashy like some German or Japanese brands, but it represents the "Goldilocks" zone of cordless power: affordable enough for homeowners, durable enough for pros.
Buy it if:
Skip it if:
Final Tip: If you are buying a new tool kit, avoid the "bare tool" purchase. Look for the kit that includes two CLM18VRB batteries and a rapid charger. Having two batteries allows for "continuous run" operation—one in the tool, one on the charger.
Have you had a different experience with the Pro CLM18VRB? Drop a comment below with your runtime results or repair hacks. Stay powered up! pro 18v battery clm18vrb
The CLM18VRB is an 18V Nickel-Cadmium (NiCd) battery primarily used for the Performance Power Pro line of cordless power tools. While it is a legacy battery type, it remains relevant for users maintaining older tool sets from retailers like B&Q or similar brands that utilized this specific battery interface. Key Specifications Model Number: CLM18VRB Voltage: 18V DC Chemistry: Nickel-Cadmium (NiCd) Brand Compatibility: Primarily Performance Power Pro Compatibility and Usage
The CLM18VRB is a specialized battery designed for entry-level professional and DIY 18V tools.
Legacy Hardware: As a NiCd battery, it is part of an older generation of power tool technology compared to modern Lithium-Ion (Li-ion) systems.
Charging: It requires a dedicated NiCd charger capable of handling 18V outputs. It is not compatible with modern Li-ion only chargers unless they are specifically designed as multi-chemistry units.
Interchangeability: Power tool batteries are rarely interchangeable between brands without specific adapters. The CLM18VRB's unique physical connector and locking tabs are designed for Performance Power Pro tools and will not natively fit other major 18V systems like Milwaukee M18 or Craftsman V20. Maintenance Tips for NiCd Batteries To maximize the life of a CLM18VRB battery:
Avoid "Memory Effect": Periodically fully discharge the battery before recharging to maintain its full capacity. We tested the Pro 18V Battery CLM18VRB (4
Storage: Store in a cool, dry place. Unlike Li-ion, NiCd batteries have a high self-discharge rate and should be topped up before use if they have been sitting idle for several weeks.
Replacement: If your CLM18VRB no longer holds a charge, you can find used or refurbished units on secondary marketplaces like eBay or PicClick. Performance Power Pro 18v Tool Battery CLM18VRB
The PRO 18V Battery (model CLM18VRB) is a legacy-style 18V battery pack frequently associated with older professional and DIY cordless power tool ranges, such as those formerly sold under the Pro Power or Mac Allister brands. Unlike modern lithium-ion systems, this specific model is typically based on Nickel-Cadmium (Ni-Cd) or Nickel-Metal Hydride (Ni-MH) chemistry. Key Specifications & Features Voltage: 18.0V nominal.
Chemistry: Primarily Ni-Cd (Nickel-Cadmium), though modern replacements are often upgraded to Ni-MH for better capacity without memory effect.
Typical Capacity: Varies by manufacturer, but usually ranges from 1.5Ah to 3.0Ah for replacement units.
Cell Construction: Comprised of 15 internal Sub-C cells (approx. 43x23mm each). Skip it if:
Design: Features a "tower" or "stem" style connector that slides into the handle of the tool, common in tools produced in the 2000s and early 2010s. Compatibility
The CLM18VRB is largely compatible with 18V tools from several "house brands" found in big-box hardware stores:
Mac Allister: Specifically designed for the CLM18NICD and related 18V series.
Pro Power: Used across kits including circular saws, reciprocating saws, hammer drills, and torches.
Replacement Options: Because these original batteries are often discontinued, you can find high-capacity Ni-MH replacements at retailers like Amazon or through specialist battery refurbishers. Performance & Maintenance
Memory Effect: Original Ni-Cd versions of this battery suffer from "memory effect," meaning they should be fully discharged before recharging to maintain maximum capacity.
Charging: Requires a dedicated Ni-Cd/Ni-MH charger; modern Lithium-Ion chargers are not compatible and could damage the cells.
Longevity: These packs are known for being robust but heavy. If your battery no longer holds a charge, it is often possible to "re-cell" the existing plastic casing with new internal cells to save on replacement costs. 18 Volt Battery Packs for Pro Power Cordless Tools