User manual TRONIC KH 967

[. . . ] It is not intended for charging commercial type batteries (even rechargeable types), or lithium-ion batteries, or for use in commercial or industrial applications. Never load commercially available non-chargeable batteries into the appliance ­ these can overheat and explode. Safety instructions. · Never leave the appliance to charge unsupervised. Batteries become hot once they are fully charged. Overcharged or faulty batteries can overheat and explode. [. . . ] Otherwise the charging process cannot start. b) Test the batteries first!If you do not know how charged or discharged your batteries are, you can test them as follows: Move the switch to the far left, to the position with the "partly charged batteries" symbol. · Then, connect the power plug to the power socket. The test indicator lightat the symbol is lit brightly if the battery is sufficiently charged. If the test indicator light is lit only faintly or not at all, then the battery is almost completely discharged or flat. Note: Only insert the battery in the slot on the far left is tested. If you would like to test the other batteries as well, they must be inserted one after the other into this slot. NiCd batteries should only be recharged when they are almost completely discharged. Otherwise, a "memory effect" is created, where the batteries reduce their capacity to the lower level at which they are actually used. NiMH are not susceptible to the "memory effect". 5 c) Discharge NiCd batteries first NiCd batteries that are not fully discharged should be discharged first, to avoid the possibility of "memory effects". If you have inserted up to 4 NiCd batteries, move the switch to the far right, to the position with the "Discharge" symbol. · Connect the power plug to the power socket. Allow the NiCd batteries to discharge until the test indicator light is barely lit, meanwhile testing the batteries a few times. Important: Do not allow NiCd batteries to become completely discharged, as this may ruin them. Therefore, do not allow the batteries to discharge until the test indicator light goes off completely. The Discharge feature is only available at the four charging slots for 1. 2 V batteries ­ not for 9 V batteries. d) Charging batteries If you have inserted the batteries the right way up, as described at paragraph a) . . . move the switch to the center, to the position with the "Charge" symbol, and . . . · connect the power plug to the power socket. If all batteries have been placed correctly, the charge indicator LED lights up at each charging slot. If a charge indicator LED is not lit, even though the battery has been correctly inserted, then the battery is faulty. Do not, in any circumstances, attempt to charge a faulty battery. A faulty battery can overheat and then explode. · Only charge with the cover closed. [. . . ] Batteries can also leak and damage the appliance. · Store the appliance in a dry place. 6. Cleaning and Care Clean the appliance only when the plug has been disconnected from the power socket and all the batteries have been taken out. · Clean the appliance only with a dry cloth. [. . . ]