Bosch’s Professional 18V battery system has evolved into something unique: the AMPShare alliance. Unlike other manufacturers who keep their batteries proprietary, Bosch has opened its 18V platform to partner brands including Fein, Rothenberger, Wagner, and others. This means a single battery can power tools from multiple manufacturers.
What Is AMPShare?
AMPShare (also called the Bosch Professional 18V System) is a cross-brand battery compatibility alliance. Any battery bearing the AMPShare logo works in any tool bearing the same logo, regardless of the manufacturer. This is a genuine industry first — no other major platform offers cross-brand compatibility.
No single brand wins across every category. Your best choice depends on which tools you already own — switching platforms is rarely worth the cost.
Compatible Brands
- Bosch Professional — the core brand, with the widest tool range (drills, grinders, saws, measuring tools)
- Fein — specialist in oscillating multi-tools, metal cutting, and industrial applications
- Rothenberger — plumbing and HVAC tools (pipe cutters, press tools, soldering)
- Wagner — paint sprayers and surface preparation tools
- Other partners — the alliance continues to expand with new brands joining
Bosch 18V Battery Range
- GBA 18V 2.0Ah — compact pack for light tools and overhead work
- GBA 18V 4.0Ah — general-purpose, ships with most kits
- GBA 18V 5.0Ah — professional standard for sustained use
- GBA 18V 8.0Ah — high-capacity for demanding tools like the BITURBO range
- ProCORE 18V 4.0Ah / 8.0Ah / 12.0Ah — Bosch’s high-performance line with higher discharge rates
BITURBO vs Standard Bosch 18V
Bosch’s BITURBO tools are the premium tier, similar to Milwaukee FUEL or DeWalt XR. They feature advanced brushless motors and benefit most from ProCORE batteries. Standard Bosch 18V tools work with all AMPShare batteries but won’t extract the same performance as BITURBO tools.
Why Choose the Bosch / AMPShare Platform?
- Cross-brand flexibility: One battery system for Bosch, Fein, Rothenberger, and Wagner tools
- Specialist tools: Access to Fein’s industry-leading multi-tools and Rothenberger’s plumbing range
- Professional quality: Bosch Professional tools are widely trusted across trades
- Growing ecosystem: New partner brands and tools are added regularly
Related Guides
Video Guide
Frequently Asked Questions
Battery Care and Maintenance
Bosch 18V batteries are built to professional standards, but proper care significantly extends their useful life. Store batteries at 40-60% charge when not in use, and keep them in a cool, dry location between 5°C and 40°C. Avoid leaving batteries in vehicles or exposed to direct sunlight, as excessive heat is the primary cause of premature cell degradation.
Bosch CoolPack technology, found in their higher-capacity batteries, improves heat dissipation during high-demand use. This feature allows the battery to run cooler during sustained operation, which both improves immediate performance and extends long-term lifespan. If you frequently use demanding tools like grinders or circular saws, CoolPack batteries are a worthwhile investment.
When charging, use genuine Bosch chargers or AMPShare-compatible chargers from partner brands. These chargers include temperature monitoring, cell balancing, and overcharge protection that ensure safe, optimal charging. Remove batteries from the charger once fully charged rather than leaving them connected indefinitely.
AMPShare Cross-Brand Compatibility
One of the most compelling features of the Bosch 18V platform is AMPShare compatibility. This alliance allows Bosch 18V batteries to work with tools from partner brands, effectively expanding your tool ecosystem without additional battery investment. Partner brands include Gardena for garden tools and several professional-grade manufacturers.
Cross-brand compatibility means a single set of Bosch 18V batteries can power your workshop power tools, garden equipment, and specialised instruments. This significantly reduces the total cost of ownership compared to maintaining separate battery platforms for different tool categories. Before purchasing new tools, check whether they support the AMPShare standard to maximise your existing battery investment.
The AMPShare alliance continues to grow, with new compatible tools and brands joining regularly. This makes the Bosch 18V platform particularly future-proof, as your battery investment becomes more versatile over time rather than less.
What brands are part of the AMPShare battery alliance?
The Bosch AMPShare (powered by the CAS system) includes Bosch Professional, Metabo, Fein, AMPShare-compatible Rotak, and several other European brands. The full Cordless Alliance System includes over 20 brands sharing the same 18V battery platform, making it the largest cross-brand battery compatibility system in the world.
Can I use Bosch AMPShare batteries in Makita or DeWalt tools?
No. Bosch AMPShare batteries only work with AMPShare/CAS-compatible brands. They are not compatible with Makita, DeWalt, Milwaukee, or Ryobi tools. AMPShare is a separate ecosystem, though it is notable for being one of the few platforms where batteries genuinely work across different manufacturers.
Is Bosch AMPShare the same as Bosch 18V?
Yes and no. AMPShare is the rebrand of Bosch’s 18V Professional platform to emphasise its cross-brand compatibility via the CAS alliance. Older Bosch Professional 18V batteries work with AMPShare tools and vice versa. The DIY green Bosch 18V line, however, uses a different battery system and is not AMPShare compatible.
Frequently Asked Questions
Are Bosch 18V batteries compatible with other brands?
No. Bosch uses a proprietary battery system. However, Bosch is part of the CAS (Cordless Alliance System) which shares batteries with some partner brands.
How many Bosch 18V tools are available?
Bosch offers over 100 professional 18V cordless tools. The professional (blue) and DIY (green) ranges use different battery systems.
Is Bosch 18V as good as Makita or DeWalt?
Bosch 18V tools are excellent quality, particularly for precision work. The platform is slightly smaller than Makita or DeWalt but competitive in tool quality and innovation.
Getting Started with AMPShare
If you’re considering entering the Bosch 18V ecosystem, the AMPShare compatibility is a major selling point. Start by purchasing one or two quality 4.0 Ah batteries and a charger, then build your tool collection as bare tools — this approach saves significant money compared to buying kits that bundle batteries you may not need.
The real value of AMPShare becomes apparent when you discover compatible brands you hadn’t considered. For example, Metabo HPT (formerly Hitachi) offers excellent value on certain tool categories like nailers and sliding compound mitre saws. By sharing batteries across Bosch and partner brands, you get access to a wider range of best-in-class tools without maintaining separate battery platforms.
AMPShare Battery Recommendations
For most users, a pair of Bosch 4.0 Ah CORE18V batteries provides the best balance of runtime, weight, and cost. These compact packs fit comfortably on all AMPShare tools and deliver enough capacity for typical tasks. If you regularly use high-draw tools like grinders or circular saws, stepping up to the 8.0 Ah CORE18V battery is worthwhile — these use the same cell configuration as premium packs from other brands and deliver impressive sustained performance. Keep in mind that the larger batteries add noticeable weight, so having both sizes available lets you match the battery to the task.
