Then, You'll join the charger's favourable clamp on the battery's positive terminal and the charger's unfavorable clamp to the battery's detrimental terminal. Typically, the charger's beneficial clamp will be red along with the unfavorable clamp is going to be black. Some say the device can heat up quite a bit https://hukums.com/products/dewalt-dwht62054-0-max-fit-4-pc-screwdriver-set