User manual GRAUPNER POWER SUPPLY 13.8V 0-12A

[. . . ] If the 100~240V AC input is selected, for pluggable equipement like the Ultramat 8, the socket-outlet shall be installed near the charger and shall be easily accessible. 6 Safety Notes · Never connect the charger to both power sources simultaneously, and never connect an AC voltage to the DC voltage input. ⷠThe charger and the battery to be charged should be set up on a heat-resistant, noninflammable and non-conductive surface before use. Keep all inflammable and volatile materials well away from the charging area. [. . . ] Check before using the charger Before charging please check the following points: are all connections firm and secure, i. Please bear in mind that it can be dangerous to fast-charge batteries. For example, if there is a brief interruption due to an intermittent contact, the result is inevitably a malfunction such as a restart of the charge process, or an incorrect cellcount detection, which could result in the pack being massively overcharged. Ensure that all connectors and terminal clamps make good, sound contact. For example, if there is a brief interruption due to an intermittent contact, the result is inevitably a malfunction such as a restart of the charge process, which would result in the pack being massively overcharged. Lithium-Polymer cells This charge program is only suitable for charging Lithium-Polymer batteries with a nominal cell voltage of 3. The main outstanding feature of Lithium batteries is their much higher capacity compared to other battery types. This is an important advantage, but it is balanced by the requirement to handle the batteries differently, especially with respect to charging and discharging, if the danger of using them is to be minimised. There are important basic rules governing the handling of these cells, and they must be observed at all times. For additional information and safety notes please study the battery manufacturer's published specifications. The fundamental rule is that Lithium-based batteries may ONLY be charged using special chargers which are designed and set for the actual battery type (final charge voltage, capacity). When the pack approaches the maximum charge capacity, the unit reduces the charge current, again completely automatically. This charge process always charges the battery to 100% capacity in a way which avoids cell damage. "Battery charged" mode As soon as the battery reaches the set Delta-Peak cut-off voltage / cell, the Ultramat 8 automatically switches the process off. At the same time an audible signal sounds at one-second intervals for about fifteen seconds. disconnect the charged battery and press the NiMH / NiCd button in order to switch the Ultramat 6 to Standby mode. The blue and red LEDs now flash at five-second intervals to indicate Stand-by mode. Warm batteries offer much higher performance than cold ones, so don't be surprised if your batteries don't seem so effective in the Winter. For example, the Ultramat 8 is protected against short-circuit at the input and the charge output. if a fault should arise , the Ultramat 8 automatically switches to Error mode. This mode is indicated by both LEDs (blue and red) flashing at three-second intervals. The type of error is indicated by the number of times the LEDs flash before a brief pause; the audible signal continues to sound during the intervals. [. . . ] This means that the Ultramat 8 starts charging at a fairly low current, and carries out an assessment of the battery before automatically raising the charge current. When the pack approaches the maximum charge capacity, the unit reduces the charge current, again completely automatically. This charge process always charges the battery to 100% capacity in a way which avoids cell damage. "Battery charged" mode As soon as the battery has reached 100% of its capacity, the Ultramat 8 automatically switches the process off. [. . . ]