For industrial maintenance operations that already carry CAS batteries on site, this is a significant practical change. It eliminates a dedicated battery supply chain for surface preparation tools and integrates MontiPower equipment into an existing cordless platform.
What CAS means: one battery, many tools, many brands
Most power tool battery systems are proprietary: a battery from Brand A will not fit tools from Brand B. This has historically forced maintenance teams, contractors, and facility operators to manage multiple battery types, chargers, and spare inventories — one per tool brand in use.
CAS breaks this model. All CAS-certified tools share a common 18 V platform. A battery purchased with a Metabo drill can be used directly in a MontiPower Bristle Blaster® Ultimate, a Mafell saw, or any of the 450+ other CAS-certified tools. The system uses standardized LiHD cell chemistry, a common physical interface, and a shared battery management system across all participating brands.
As of 2025, the CAS alliance includes 45 brands and is targeting 50 brands by the end of the year. The breadth of the platform — spanning tools from specialist surface preparation through general construction — means that for operations already running CAS tools, adding a MontiPower Ultimate machine requires no new battery infrastructure at all.
How CAS works technically
CAS batteries are built around Metabo’s LiHD cell technology, available in 18 V configurations at 2.0 Ah, 4.0 Ah, 5.5 Ah, 8.0 Ah, and 10.0 Ah capacities. The LiHD chemistry is optimized for high-drain applications — tools with significant current draw under load — which is directly relevant to surface preparation equipment like the Bristle Blaster® and MBX®, both of which operate under continuous mechanical resistance.
The battery electronics include a capacity indicator (LED bar with press-to-check button), thermal protection, and a charge management circuit that communicates with compatible CAS chargers. Charging is done exclusively with CAS-compatible chargers; the system will not charge on generic Li-ion chargers, which protects cell life and maintains safety compliance across brands.
For industrial surface preparation environments, the most relevant configurations are the 18 V 8.0 Ah LiHD battery (MontiPower item code ZU-602) for maximum runtime on demanding tasks, and the 5.5 Ah pack (ZU-600) as the lighter option for work at height or confined access. A 10.0 Ah pack is also available within the CAS platform for the highest-capacity applications.
CAS in North America: how it fits alongside existing battery platforms
North American industrial operations typically encounter two multi-brand cordless platforms: CAS and AMPShare. AMPShare is a competing multi-brand battery alliance anchored by Milwaukee Tool, with a smaller number of participating brands concentrated in the North American trades market. CAS has broader international reach and a larger participating brand roster, including specialist industrial and engineering tool manufacturers that do not participate in AMPShare.
For operations already standardized on Metabo, the choice is straightforward: CAS batteries already on site power MontiPower Ultimate tools directly. For operations evaluating which cordless platform to standardize on, the decision depends on which other tools are in use. A detailed comparison of CAS and AMPShare for industrial maintenance is covered in a separate article in this series.
In ATEX and hazardous area environments — common in offshore, refinery, and petrochemical maintenance — the tool itself (not the battery platform) must carry the relevant explosion protection certification. Within the MontiPower range, the Bristle Blaster® Pneumatic carries ATEX Zone 1 approval (ExII2GcIIAT4X) and is the appropriate tool where a certified ignition-source-safe option is required in classified areas. The cordless Ultimate tools operate on CAS batteries and are suited to general industrial environments; they do not carry ATEX certification. CAS platform compatibility and ATEX certification are independent attributes that must be verified separately for each tool.
Why battery platform matters for surface preparation specifically
Surface preparation in maintenance environments — offshore platforms, refineries, shipyards, bridges, and industrial structures — frequently involves work in locations without reliable power access: elevated structures, confined spaces, remote pipeline sections, or live facilities where running power cables creates logistics and safety complications. Cordless surface preparation has been technically possible for years, but the limitation has always been battery management: dedicated battery packs, specialized chargers, separate inventory.
CAS changes the logistics of cordless surface preparation. When a maintenance team carries CAS batteries for their primary tools, the same packs are interchangeable with MontiPower Ultimate equipment. Hot-swapping batteries between a drill, a grinder, and a Bristle Blaster® without managing separate inventories is a meaningful operational simplification, particularly in environments where tool staging and battery rotation are already part of the work management process.
MontiPower and CAS: what tools are available
MontiPower’s three Ultimate cordless tools are all CAS-compatible:
- Bristle Blaster® Ultimate Cordless — rotary impact surface preparation tool that produces surface cleanliness comparable to SSPC-SP10 / Sa 2½ and an anchor profile of 65–85 µm Rz without abrasive media, on standard carbon steel. The primary tool for field joint coating preparation, structural steel maintenance, and grit-free blast-equivalent prep in confined or sensitive environments.
- MBX® Ultimate Cordless — surface preparation and conditioning tool for cleaning, light profiling, and inter-coat preparation on structural steel, process equipment, and marine applications.
- Vinyl Zapper® Ultimate Cordless — decal, adhesive, and marking removal tool for fleet, rolling stock, and industrial equipment where chemical strippers or mechanical abrasion are unacceptable.
All three run on the standard CAS 18 V LiHD platform, use the same battery packs, and are charged with standard CAS chargers. For operations maintaining all three product types, the battery infrastructure is unified across the entire MontiPower cordless range.
Key takeaways
- CAS (Cordless Alliance System) is a multi-brand 18 V battery platform initiated by Metabo. One battery powers tools from 45+ brands, including MontiPower’s entire Ultimate cordless range.
- MontiPower’s CAS battery packs are available in 5.5 Ah (ZU-600), 8.0 Ah (ZU-602), and 10.0 Ah configurations. The 8.0 Ah pack is recommended for continuous surface preparation tasks.
- For operations already running CAS tools, no new battery infrastructure is required to add MontiPower Ultimate equipment to the tool inventory.
- For ATEX-classified environments, the Bristle Blaster® Pneumatic carries ATEX Zone 1 approval (ExII2GcIIAT4X). The cordless Ultimate tools do not carry ATEX certification and are suited to general industrial environments.
- CAS and AMPShare are the two main multi-brand battery alliances relevant to North American industrial operations. CAS has broader international brand participation and specialist industrial tool coverage.
Related articles
- MontiPower Ultimate Cordless Tools: Built on CAS Battery Technology
- Bristle Blaster® Ultimate Cordless: SSPC-SP10 Surface Prep Without Grit, Without a Cord
- MBX® and Vinyl Zapper® Ultimate Cordless: Complete Surface Prep Workflow on One Battery System
- CAS vs AMPShare: Choosing the Right Multi-Brand Battery System for Industrial Tools