2x 8.0Ah Lithium Ion Battery. Battery Specifications Battery Composition:Lithium-Ion. Compatible Lithium-Ion Battery model Do not put battery into water and fire. Such as battery, as adapter etc.
eBay
Battery Adapter/Converter for Milwaukee 12V Li-Ion tools to Lidl Parkside X20V Li-Ion Battery Adapter Power Tool Accessory
Aliexpress UK
Features: 1.Battery Type: Lithium-ion / Voltage:12V / Capacity:3.0Ah / 6.0Ah / 9.0Ah 2:Compatible with all Milwaukee M12 cordless power tools 3:Premium connector provide steady currect ,a good connector to your tool ,easy to install and remove 4:The ABS+PC plastic material,durable enough to protect the cess inside battery and prevent the damage from outside 5:Over-Charge protection / Over-discharge protection / Over-current protection / Short-circuit protection 6: 100% product satisfaction and One Year Warranty.
eBay
Battery Adapter for Ryobi 18V ONE+ Li-ion tools to Milwaukee 18V Li-ion Battery Adapter Converter Power Tool Accessory
Aliexpress UK
Features: 1.Battery Type: Lithium-ion / Voltage:12V / Capacity: 6.0Ah/6000mAh 2:Compatible with all Milwaukee M12 cordless power tools 3:Premium connector provide steady currect ,a good connector to your tool ,easy to install and remove 4:The ABS+PC plastic material,durable enough to protect the cess inside battery and prevent the damage from outside 5:Over-Charge protection / Over-discharge protection / Over-current protection / Short-circuit protection 6:100% product satisfaction and One Year Warranty 7:With LED indicator design,allows you to check the state of battery （When the LED display has only one grid, please charge it in time. Please do not exhaust the battery.）.
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For Hitachi&Hikoki 18V Lithium Batteries for Makita/DeWalt/Milwaukee/Bosch 18V/20V Battery Power Tools Battery Adapter Converter
Aliexpress UK
3 or 4 Way Battery Wall Holder for Milwaukee M12 Batteries.
eBay
Nerw MIL18DL Battery Adapter Converter for Milwaukee 18V Li-ion Battery Convert to For Dewalt 18V 20V Li-ion Battery Power Tools
Aliexpress UK
2x 6Ah Lithium Ion Battery. Battery Specifications Battery Composition:Lithium-Ion. Compatible Lithium-Ion Battery model Do not put battery into water and fire. For -2601-21, 2602-22DC, 2603-20, 2603-22, 2603-22CT, 2604-20, 2604-22.
eBay
Battery Adapter for HILTI B22 CPC Lithium Battery Converter to for Milwaukee 18V Li-Ion Power Tool Accessories(NO Battery )
Aliexpress UK
2X 18V 5.0Ah Battery for Milwaukee M18 48-11-1850 Power Tools. Compatible Band: For MILWAUKEE. For Milwaukee 48-11-1811, 48-11-1815, 48-11-1820, 48-11-1822, 48-11-1828, 48-11-1840, 48-11-1841, 48-11-1850, 48-11-1852, 48-59-181, 48-59-1850.
eBay
Battery Adapter for Hitachi&Hikoki 18V Lithium Batteries To Use Work for Makita/DW/Milwaukee/Bosch 18V/20V Battery Power Tools
Aliexpress UK
Fix battery wobble and power cut-outs fast. This pack includes 3 red shims (0.5mm, 1mm, 1.5mm) to remove free play between your Milwaukee M18 battery and tool. Helps prevent battery disconnects, especially when using impact guns and high-vibration tools. ✔ Stops battery movement ✔ Improves tool reliability ✔ Quick and easy to fit 3D printed from durable red PLA. FREE SHIPPING Please note: Royal Mail are currently experiencing delays in my local area. Your order has been dispatched, but delivery may take slightly longer than usual. Thank you for your patience.
eBay
Battery Adapter For Milwaukee For Dewalt 18v 20v Li-ion battery Convert to for Makita Bl1830 Bl1850 Batteries Power tools DM18M
Aliexpress UK
This Milwaukee m18, 8x Battery Caddy Holder ABS is the perfect accessory for your power tools. Designed to hold 8 x 18m batteries, it is compatible all m18 batteries. The caddy is made of durable ABS material for strength and durability and features a compact design for easy transportation.
eBay
Battery Adapter Converter for Ozito 18V PXC Lithium Battery to for Milwaukee 18V Li-Ion Power Tool Accessories(NO Battery )
Aliexpress UK