The iMAX B4 Compact Balance Charger makes charging of your Lipoly batteries easier than ever before. With no current limits or cell counts to set, you simply connect your battery to the B4 and it starts charging automatically. The charge current is variable, determined by the capacity and charge state of your battery. The max charging current is 4A (up to 35W).
The B4 comes with everything you need including charge lead and alligator clips for connecting to a DC power source.
Features: • Simple to use • Compact size • Automatic charging of 2~4S batteries • Up to 4A (max 35W) charge rates
Specs: Operating Voltage: 11~18V DC Charge Power: 35W max Charge Current: 4A max; Charging process will monitor battery capacity continually and adjust charge current as necessary. Balancing Current: 200mA/cell Lipoly Cell Count: 2~4 cell (7.4V~14.8V) Dimensions: 100x63x34mm
Not selectable but like many balance chargers you can not over current a cell that is close to full. AMP/Current is determined by the controllers logic board. An empty lipo (3-3.3v per cell) will get Maximum current(in this case 4A). The Current/AMP charging rate will then begin to diminish as each cell gets closer to it's 4.2v maximum allowed voltage per cell.