In addition to Auto-polarity detection there is a strong visible digi-dispaly. Visually beautiful. Function continues the Lii-100, very good. Four LED indicators show the charging status (25%, 50%, 75%, 100%), and also shows the battery type, if inserted into the battery (1.2 V Ni-Mh, 3.2 in Li-Fe, 3.7 in Li-Ion, 3.85 in li-ion).
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