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Input voltage DC5V~15V wide voltage input, compatible with CN3791 MPPT solar charger input voltage pre-selection, solar panel 6V/9V/12V can directly charge a single lithium battery.
Complete charge management for single-cell lithium batteries.The charging current can reach 3A. (need to change the resistance and add heat sink, the default is 1.2Amax)
PWM switching frequency 300KHz
Constant voltage charging voltage 4.2V ± 1%
Working environment temperature -40~85℃