Disposable batteries are a major burden in the long run - both for the wallet and for the environment. Especially for lithium batteries, the consumer has to grip deeply into the bag. So why not switch to rechargeable batteries, which are available in all sizes. In order to make the investment in a rechargeable battery worthwhile for the long term, it is important to use a charger that optimally charges the rechargeable batteries and thus considerably extends their lifetime.A variety of battery sizes are offered especially in the lithium segment. With the lithium 4 charger from you decide for the universal all-rounder with the best price-performance ratio. You can use up to 4 Li-Ion or Lithium Iron Phosphate (LiFePO4) batteries of sizes 26650, 22650, 18650, 18500, 17670, 16340, 14500 etc. or 1-4 NiMH Micro AAA, Mignon AA or 1-2 Baby C batteries charge independantly of each other. The device detects inserted NiMH and Li-Ion batteries completely automatically. Only when charging LiFePO4 batteries, you have to set the cell chemistry manually after inserting them before the automatic charging process starts.In order for your battery to deliver its performance even after many charging cycles, it is important that it is always carefully and safely charged. The lithium 4 charger from has a high-quality, microcontroller-controlled charging technology, which protects the battery against rapid wear and tear in multiple ways. This includes the automatic switch-off of the charging process as soon as the cell is fully charged, as well as the gentle maintenance charging for NiMH cells after the actual charging process. Lithium cells in particular must be treated with special care due to their high energy density. The special electronics in the lithium 4 charger from guarantees safety at the highest level.A highlight of this charger is the very well readable and illuminated LCD, which informs you about all relevant parameters during the charging process. It shows the battery voltage, the charging capacity, the charging current, the charging progress and the battery chemistry of the selected charging slot. In addition, the status for each charging slot is displayed individually, so that you can see at a glance which battery is still being charged or is already fully charged. The charger also provides acoustic feedback, e.g. when the battery is full or the battery is defective. If desired, the acoustic output can also be deactivated.The lithium 4 charger can be operated with any commercially available 5V/2A USB adapter. For optimal charging, recommends a 2.4A USB High Speed Charger with smart IC.This text is machine translated.