Jason McNeil Posted August 14, 2016 Share Posted August 14, 2016 18 hours ago, HEC said: Why? MH1 cells are rated for safe 1C fast charging which means 3.2A for 1P packs and 6.4A for 2P packs. 4 - 5A fast charger will be perfectly safe, even 6A will be still well within the specs. It's true, however in Lifecycle section of the Datasheet, it describes the procedure used to obtain >70% capacity for 500 cycles, with a 'standard charge' defined as: 4.1.1 Standard Charge Unless otherwise specified, “Standard Charge” shall consist of charging at constant current of 0.5C. The cell shall then be charged at constant voltage of 4.20V while tapering the charge current. Wish battery manufacturers could provide a side-by-side graph of cycle life with both MAX & STANDARD methods. Still: a 3A charger at 84v = 252W, which is double the present offering, a big improvement. Link to comment Share on other sites More sharing options...
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