AAKEE Senior Heliman Location: Boden, Sweden
| I've done this for 1½ year, using a E-station BC6.
If You have the battery packs drawn to the same level (i.e the used milliampheres) you will charge the 2 packs as quickly as charging one pack.
If there is a difference in the discharge it can make the charging take a lot more time. This is due to the fact that when the first cell of the 6 comes close to 4.20volts the charging current will go down rahter much. If, fore example, the difference is 500mah, the first batteri pack will reach 4.20volts/cell and the second will still have 500mah to full...then it will probably be the limit of the balancers current flow(200mah in my BC6). This will make it take about further 2½ hour (500/200) to complete the charging cycle.
So: Try to fly the lipos to the same level. I go strictly on the timer, and if I know i flew harder(more 3D) with some lipo packs, then I charge them together. This makes it to keep about (or less then) one hour to charge 2*3s. I check the voltage level on the packs, I press the button on the charger to se voltage immediatly after starting the charging, then I can se the 'resting voltage' of each cell...if the difference is to much (about 0,1volt) then it'll take more time to charge that combo.
Hope this can bring you some extra joy to the 2*3s-charging :-) |