After first use: Very nice charger! But the small fan gives high airflow during high current charge phase with some noise. Maybe this strong cooling is not even necessary on 2 ampere version? Work on fan noise and you get 6 stars on next version! Voltage and current are perfect for my needs. The charger reduces current smoothly after main charge phase and ends with complete cut-off at 42,1x volts.
about 10 days delivery, very fast. Good quality, 42,1V, fan is not too noisy