You might also be interested in these milwaukee m18 lithium ion high output 6ah battery 2 pack.
Milwaukee M18NRG-502 18V Energy Pack 2 x M18B5 5.0Ah Battery & M12-18C Charger
Milwaukee
£ 205.29
free shipping
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Milwaukee M18B4 18v 4.0Ah Li-ion Red Battery with Milwaukee M12-18C Charger
Milwaukee
£ 77.00
free shipping
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Milwaukee M18HNRG-122 HNRG Battery, 18V, 12.0Ah
Milwaukee
£ 493.93
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Milwaukee M18B5 M18 5.0Ah Red Lithium-Ion Battery | 2.5x more run time, up to 20% more power and up to 2x more battery life compared with previous MILWAUKEE® battery technology
Milwaukee
£ 59.95
To the product (10 offers)
23% off
Milwaukee M18B2 M18 2.0Ah Lithium-Ion Battery - Red