Connect the black (negative) clamp to a heavy, unpainted metal part of the vehicle frame or engine block (away from the battery). If the battery is out of the vehicle, connect directly to the negative (-) post.
: Ensure the area is well-ventilated. Inspect cables for damage; do not use if frayed. autocraft 1.5 amp battery charger manual
Tip: The charger automatically switches to “float” mode when full, so you can leave it on for days without overcharging. Connect the black (negative) clamp to a heavy,