Then, You'll join the charger's favourable clamp to the battery's optimistic terminal plus the charger's negative clamp on the battery's unfavorable terminal. Generally, the charger's constructive clamp will be red along with the detrimental clamp is going to be black. Essentially the most relating to detrimental reviews are from consumers https://hukums.com/products/stanley-fmst82961-1-fatmax-hard-shell-knee-pads