The PWM controller enables charging of lead-acid batteries with a current of up
to 20A and the connection of PV panels with an output voltage of max. 25V (for a
system voltage of 12V). It is equipped with an LCD display for setting and
displaying operating parameters. Brief description of PWM controllers: Solar PWM
controllers connect the solar panels directly to the battery being charged, and
after reaching the set or given terminal voltage of the battery, the subsequent
regulation is solved by pulse limitation-interruption of the current. This
happens at a frequency of units to tens of Hz and on some controllers is
indicated by a flashing LED labeled charge or solar. Regulators are suitable for
panels with the same system voltage as the battery voltage, otherwise losses
occur when part of the power is wasted due to inappropriate V-A characteristics
of the panel. Technical parameters: - nominal battery voltage range for active
charging: 11.5-12.8V (23-25.6V) - Pb battery ? OPEN ? mode b01 - Pb battery ?
GEL ? mode B02 - Pb battery - with liquid dielectric - mode b03 - max. input
voltage: 25V for 12V battery, 50V for 24V battery - max. charging current: 20A -
USB output: 2× 5V/2A - dimensions: 133×70×35mm - weight: 300g