| Built-in cooling fan and Built-in CPU, analyses battery condition via memory chip in the battery, and controls current, voltage and temperature of individual cells within the battery to produce optimum and fast charging. Charging times for:- BL 5Ah - 45 Minutes BL1840 4Ah - 36 Minutes BL1830 3Ah - 22 Minutes BL1430 3Ah - 22 Minutes BL1415 1.3Ah - 15 Minutes | Compare prices2→ |