€ 43.85 = $60.49 So their group buy price of 40 units is the same as a single Aliexpress unit shipped to usa. I wonder what we could get the price down to? Maybe just waiting a month or two will lower the price of them a lot.
Ouch $60 with only 2x26650, no 32650, max of 2A with spikes too, so $120 to charge big multi cell lights at once?? Bye bye to the “dreamcharger”, its turning into a nightmare.
I’m not sure I’d call it a nightmare. I paid about $35 for a Lacrosse BC700 that only does AA and AAA that I love. This is the same thing, but it will also do my 18650 and 14500 cells. It would save me from buying a hobby charger, and then rigging it to do discharges and other things. I wish it was more like $40-$50 but I will end up with one eventually. I will wait a bit though and see how the price changes. I think our uses for it are different. I have nothing larger than an 18650. I want it for discharging and doing capacity testing of 18650s and such. Things that you’d normally need to buy a hobby charger for, and then hack it so it does single cells.
Yeah I’m responding to the drama with which we were promoted this “dreamcharger” for months to wait to purchase Its not horrible, but for the price I wouldn’t get it, and for my use, the use that this was promoted to solve for me, its poor. For a multi chemistry person I guess its OK. *as long as you are only charging 18650/smaller cells. But that’s not what I want it for, I have other chargers for that. This was promoted as a solution for the big multi cell lights, which it is most certainly not. 2x TR-008 is a much better option for price at $30 each, but then they have a charge dip during charging and HKJ noted some over-voltage at times…keep on dreaming for a dreamcharger I guess.
1. The charger is oscillating and stops the charging a bit too premature This has been solved by firmware update: charger will make no current increase back in the CV stage. So no oscillating at all circumstances.
2.The “resting”/overheating periods during 2A charging or 4 × 1A discharge
2A charging is supposed to be used for high capacity Li-ion batteries, we should mention this in user manual that charging with ni-mh AA batteries with 2A charging current is not appropriate. Since 1A discharge current for 4 pcs li-ion batteries will generate a lot heat, and the fan exhausting speed is not fast enough.So it can lead to thermo-protection kicked in, which this safety mechanism is designed for. So I hope it is acceptable. If only two batteries is discharged at 1A speed, it should be no problem.
3. Power spikes from the power supply
We noticed for 9A peak current with very little period time of less than 10ms. we improved this problem by adding a larger enough filtering capacitor and its peak current now is reduced to 7A. The problem is not 100% solved, however it is improving the power supply quality significantly.
4. Uses trickle charging for NiMH when cell is fully charged
I think trickle charging current for nimh is necessary. And we believe this is a good feature of this charger. We have no plan to take this trickle charging away for nimh batteries. For li-ion batteries, there is no trickle charge current.