MP3 players, portable devices, LED headlamps, backup supply of various industrial devices, security systems, hand tools, cameras – this is only a small selection of devices, where it is usually worth to use rechargeable NiMH accumulators in common AA and AAA sizes. They are also available with leads, which are usually more suitable for industrial use. With appearance of low self-discharge technology for NiMH accumulators, which producers reffer to as RTU, AR, Eneloop, ReCyKo etc. have properties of NiMH accumulators further significantly improved. Thanks to this they maintain up to 80% of energy after a year of storage.
In order to fully use their convenient features, you only need a good charger. To keep a long lifetime of NIMH cells, it is recommended to recharge them before they are fully discharged. In such case it is possible to reach a higher charging cycles amount. In every case you should avoid a deep discharge of a series of several cells, when a cell with the least capacity can get to a reverse polarity status. This situation can easily happen at a deep discharge of for example a 12V battery created from 10 NiMH cells. Cells never have absolutely same capacity and the same discharge. We remind you, that modern NiMH cells don´t suffer from a so called memory effect like some NiCd types, that´s why it is useless to discharge them before charging.
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