User manual KOMPERNASS TRONIC T5 BATTERY CHARGER

[. . . ] Irregular chargers are not suitable for the above-mentioned purposes, because they supply too much energy for these, and could therefore cause damage. Only use the battery charger in well-ventilated rooms, because gases are released when batteries are charged, that can reach an explosive concentration in closed rooms! Never connect the battery charger if you smell gases or fuel vapours, because sparks occurred on connecting, which can then cause an explosion! [. . . ] In this order the danger of a short-circuit is reduced, should the red charging cable accidentally touch the metal chassis (earth) on connecting!Now put the power plug into the socket ­ the charging process will begin immediately. Batteries which are charged for too long can overload and thereby get damaged. That is why the following points should be observed to calculate the maximum charging time: The charging time depends on the battery's charged condition. If you do not know this exactly, you can test it with a customary acid-meter (as described in its instructions). 28g/cm3 The charging time is calculated by the formula "Battery capacity divided by the charging current". For example, for a battery capacity of 36 Ah and a charging current of 12 A, it would theoretically be about 3 hours (3 h x 12 A = 36 Ah). Observe the decrease of the charging current to calculate the actual charging time from the middle value. If the charging current does not decrease significantly in the course of the total charging time, this indicates a defective battery!This may not be charged further under any circumstances, to prevent overheating!If the charging current is higher than about 10% of the battery capacity, the in build gas in the battery may be so much, that the battery manufacturer provides an opening of the battery closing-seal, to draw off possible excess pressure. Read the battery documents to inform your self about opening the battery and the dangers of with battery acid!If you want to clean the casing: · Make sure before cleaning that the power plug has been pulled out of the socket. And that the charging cables have been taken off of the battery, to prevent a short circuit. Make sure that no moisture gets into the charger · Clean the charging clamps if there is rust or any other dirt on them. Protect the charging cable clamps from rust and dirt by wrapping them thickly in plastic foil! [. . . ] There could otherwise be risk of death through an electric shock or risk of fire. According to the calculated charging time or when the charging current is low: First pull out the mains plug before taking off the charging cables!In this order you prevent the charging cables, which have already been taken off, from being live and causing a short circuit! [. . . ]