while charging and recommended rates of charge. f) Determine voltage of battery by referring to car owner’s manual and make sure that output voltage selector switch is set at correct voltage. If charger has adjustable charge rate, charge battery initially at lowest rate. CHARGER LOCATION a) Locate charger as far away from battery as dc cables permit. b) Never place charger directly above battery being charged; gases from battery will corrode and damage charger. c) Never allow battery acid to drip on charger when reading electrolyte specific gravity or filling battery. d) Do not operate charger in a closed-in area or restrict ventilation in any way. e) Do not set a battery on top of charger.
DC CONNECTION PRECAUTIONS a) Connect and disconnect dc output clips only after setting any charger switches to “off” position and removing ac cord from electric outlet. Never allow clips to touch each other. FOLLOW THESE STEPS WHEN BATTERY IS OUTSIDE VEHICLE. A SPARK NEAR THE BATTERY MAY CAUSE BATTERY EXPLOSION. TO REDUCE RISK OF A SPARK NEAR BATTERY: a) Check polarity of battery posts. POSITIVE (POS, P, +) battery post usually has a larger diameter than NEGATIVE (NEG, N, –) post. b) Attach at least a 24-inch-long 6-gauge (AWG) insulated battery cable to NEGATIVE (NEG, N, –) battery post. c) Connect POSITIVE (RED) charger clip to POSITIVE (POS, P, +) post of battery.
d) Position yourself and free end of cable as far away from battery as possible – then connect NEGATIVE (BLACK) charger clip to free end of cable. e) Do not face battery when making final connection. f) When disconnecting charger, always do so in reverse sequence of connecting procedure and break first connection while as far away from battery as practical. g) A marine (boat) battery must be removed and charged on shore. To charge it on board requires equipment specially designed for marine use. PERSONAL PRECAUTIONS a) Consider having someone close enough by to come to EN 19