The top of the adapter is compatible with For Makita BL Series 18V Slider Li-Ion battery system cordless tools. Replaceable For Makita Lithium-Ion 18V Battery Models 1 x Battery Adapter (Adapter Only, Tools & Battery Not Included).
eBay
Bonacell Battery Adapter For Milwaukee M18 18V Battery to Dyson V6/V7/V8 Adapter with Dyson V6/V7/V8 Series Li-ion Tool Battery
Aliexpress UK
The top of the adapter is compatible with for Milwaukee for M18 18V Slider Li-Ion battery system cordless tools. Replaceable for Milwaukee Lithium-Ion 18V Battery Models Built-in battery and tool buckle, anti-skid and anti-loose design, to ensure the perfect match between battery and tool.
eBay
Power Wheel Adapter for Ryobi 18V Battery with Fuse DIY Battery Adapter Power Connector for Ryobi 18V Nimh/Nicd/Li-ion Battery
Aliexpress UK
The top of the adapter is compatible with For Makita BL Series 18V Slider Li-Ion battery system cordless tools. Replaceable For Makita Lithium-Ion 18V Battery Models Mold injection ABS+PC material, not 3D printing.
eBay
Battery Adapters Converter For Milwaukee Battery 18V Li-ion Battery DIY Adapter for M18、48-11-1828/1815/1840/1850/1860/1890）
Aliexpress UK
The top of the adapter is compatible with Dewalt DCB Series 18V/20V Slider Li-Ion battery system cordless tools. Replaceable Dewalt Lithium-Ion 18V/20V Battery Models.
eBay
Power Wheel Adapter for Ryobi 18V Battery with Fuse Battery Adapter Power Connector for Ryobi 14.4V 18V Nimh/Nicd/Li-ion Battery
Aliexpress UK
（not for HPT series）. The base is for Dewalt 18V/20V lithium batteries：DCB180, DCB182, DCB184, DCB200, DCB201, DCB203, DCB230, DCB204, DCB240, DCB205, DCB206. Item Type: Battery Adapter. 1 x Battery Adapter( Batteries & Pow er Tools Not Included).
eBay
MT20MN Battery Adapter For Makita 18V Li-ion Battery To Ni-Mh Ni-Cd For Makita Replacement Adapter Converting Battery
Aliexpress UK
The top of the adapter is compatible with For Makita BL Series 18V Slider Li-Ion battery system cordless tools. Replaceable For Makita Lithium-Ion 18V Battery Models 1 x Battery Adapter(Adapter Only, Tools & Battery Not Included).
eBay
Bonacell Battery Adapter For Dewalt DCB200 Battery to Dyson V6/V7/V8 Adapter with Dyson V6/V7/V8 Series Lithium Tool Batteries
Aliexpress UK
Adapter can share Milwaukee M18 Li-Ion battery. The base is compatible with Milwaukee M18 18V Li-Ion battery. Item Type: Milwaukee share converter/adapter. 1 x Adapter (Adapter Only,Tools & Battery Not Included).
eBay
Battery Adapter for Milwaukee 18V Battery Adaptor with USB Charger & Type-C PD Power Source Charger for Milwaukee 18V Battery
Aliexpress UK
The base is for Dewalt 18V/20V lithium batteries: DCB180, DCB182, DCB184, DCB200, DCB201, DCB203, DCB230, DCB204, DCB240, DCB205, DCB206. 1 x Battery Adapter (Batteries & Power Tools Not Included). Item Type: Battery Adapter.
eBay
Battery Converter Adapter MT18HK BS18HK for Makita BL Series Battery for Bosch 18V Batteries Adapter for Hitachi 18V Power Tools
Aliexpress UK