Seller claimed to have shipped order with all updates on tracking, 30 days later I dispute, seller claimed in transit, so I wait, 60 days now, seller says now shipping that I will receive in another 30 days. Ali express gave me refund.
I am sorry but this driver does not work normally ... it runs all modes in both groups without memorizing one or stopping on one ... It is not from low or low batteries because it has been tested on a constant current station at 7.4 volts.
I lost 6.58 US because I waited to receive original batteries with -20A discharge. The driver didn't start from the beginning but I thought everything was due to the batteries. So I was wrong, the driver is not good ... I do not recommend.