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When Position 1 is selected, power from the solar panels and batteries will be prioritized over any AC input
available. The AC input will only be used once the batteries are fully discharged. Once the batteries reach their
low voltage setting, the Power Pak switches to the AC input and uses this to power the load and to charge the
batteries until they are full once again. This setting is ideal for users that wish to maximize their use of solar
power, and only use grid electricity or generators as a backup power source.
8.8 Other Features
8.8.1 Battery Voltage Recover Start
After a low battery voltage shutoff ( 10V for 12V model, 20V for 24V model, 40V for 48V), the Power Pak is able
to restore operation once the battery voltage recovers to 13VDC / 26VDC / 52VDC (with power switch still in the
“On” position). The built-in battery charger will automatically reactivate once a stable input voltage has been
supplied for 15 seconds.
WARNING
In the event of a low battery shutoff, never leave connected loads unattended. When the system
automatically recovers, these loads may turn on again and may present a hazard if left unattended, for
example heaters may create a risk of fire.
8.8.2 Auto Gen Start
The Power Pak can be customized to start up a generator when battery voltage becomes low. It can send a
signal to start a generator, and turn the generator off after battery charging is finished.
The auto gen start feature will only work with generators designed with this feature. There is an open/close
relay that will short circuit the positive and negative cable from a generator. The input DC voltage can vary,
but the max current the relay can carry is 16A.
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