Bosch’s Professional 18V battery system is the basis of the AMPShare alliance. Bosch has opened its 18V platform to partner brands including Fein, Rothenberger, Wagner and others — Bosch says more than 35 brands and over 430 tools — so a single battery can power tools from multiple manufacturers.
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Which batteries fit which tools — cross-brand, adapters & Ah, decoded.
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What Is AMPShare?
AMPShare is a cross-brand battery alliance built on the Bosch Professional 18V system. Bosch says it ensures full compatibility between all batteries, chargers and tools integrated into AMPShare, regardless of brand. It is not the only cross-brand system: Metabo’s CAS (Cordless Alliance System) also shares one battery across many brands.
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 pack (0.6 kg)
- GBA 18V 5.0Ah — professional standard for sustained use
- ProCORE18V 5.5Ah — Bosch says it delivers 87% more power than conventional batteries
- ProCORE18V 4.0Ah / 8.0Ah / 12.0Ah — Bosch’s high-performance line with COOLPACK 2.0, which Bosch says gives 135% longer lifetime than standard batteries
BITURBO vs Standard Bosch 18V
Bosch’s BITURBO tools are its premium brushless tier, similar to Milwaukee FUEL or DeWalt XR. Every Bosch Professional 18V battery fits them; Bosch says its larger ProCORE18V packs deliver more power than conventional batteries, which suits high-draw 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’s battery manual gives an operating and storage range of −20 °C to +50 °C and says to charge only between 0 °C and +35 °C. Avoid leaving batteries in vehicles or in direct sunlight.
Bosch lists COOLPACK 1.0 on its GBA 18V 2.0, 4.0 and 5.0Ah packs (better heat dissipation for longer lifetime and runtime) and COOLPACK 2.0 on its ProCORE18V packs (Bosch: 135% longer lifetime than standard batteries). If you often use demanding tools like grinders or circular saws, ProCORE18V packs are worth considering.
Bosch says AMPShare batteries can be charged on chargers from any AMPShare brand. Its GAL 18V-40 charger manual says to charge only Bosch Li-ion batteries or batteries of AMPShare partners with a capacity of 1.3 Ah or more.
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 Wagner for surface and paint tools, alongside other professional 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 alliance lets Bosch Professional, Fein, Rothenberger, Wagner and other professional brands share the same Bosch Professional 18V batteries. AMPShare is Bosch’s own alliance and is separate from Metabo’s CAS (Cordless Alliance System) — the two systems are not cross-compatible.
Can I use Bosch AMPShare batteries in Makita or DeWalt tools?
No. Bosch AMPShare batteries work with Bosch Professional 18V and AMPShare partner tools only. They are not compatible with Makita, DeWalt, Milwaukee or Ryobi tools, and AMPShare is separate from the CAS alliance. AMPShare is one of the few platforms where batteries work across different manufacturers.
Is Bosch AMPShare the same as Bosch 18V?
Mostly. AMPShare is the multi-brand alliance built on the Bosch Professional 18V system, launched in 2022; Bosch says Professional 18V batteries bought since 2008 stay compatible with AMPShare tools and chargers. The green DIY POWER FOR ALL 18V line is a different system and is not compatible.
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, Fein and Rothenberger add specialist tools such as oscillating multi-tools and pipe/press tools. By sharing batteries across Bosch Professional and its AMPShare 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 batteries (GBA 18V or ProCORE18V) gives a good balance of runtime, weight and cost. If you regularly use high-draw tools like grinders or circular saws, stepping up to the ProCORE18V 8.0 Ah is worthwhile. Keep in mind that larger batteries add weight (Bosch: ProCORE18V 4.0Ah 0.515 kg, 8.0Ah 0.955 kg), so having both sizes lets you match the battery to the task.
How we compile this guide
We cross-reference compatibility details against manufacturer specifications where available, official tool manuals, and the physical standards that govern fitment (bore sizes, arbor diameters, voltage platforms, connector types). We prioritise primary sources over retailer listings, flag anything we can’t confirm, and re-verify the data on a regular cycle. Where we give a buying recommendation, we tell you the reasoning — not just the link. More on our method →
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