For sale is a used Milwaukee M18 5.0 Ah REDLITHIUM battery, model 48-11-1850, perfect for powering your Milwaukee tools. It's in good working condition and ready to go. * Voltage: 18V * Amp Hour: 5.0 Ah * Battery Type: Lithium-Ion (Li-Ion) Looking to power up your projects? This battery has got you covered! Just a heads-up – if the ad's still up, the battery is still up for grabs! Based on recent sales data from Kijiji and other platforms, a fair price for a used Milwaukee M18 5.0 Ah battery is between $70 and $110. Given its good condition, I'm asking $50.