Manual

Powering a Device
It is possible to power many types of 240V and 12V devices from the various outlet
sockets on the Engel Smart Battery Box (refer to overview on page 2 and table on page
13). When powering a device the main data screen will show discharge cycle. It is okay
to use the Engel Smart Battery Box to power a device whilst it is connected to mains
power or DC power. To power a device from one of the outlets the isolator switch must
be in the “on” position. Otherwise, the isolator switch should be in the ‘off’ position
for safety. If the Engel Smart Battery Box is not charging the screen will always show
discharge cycle. Please note the isolator connects or disconnects the outlets from the
battery and does not affect the smart charger.
It is possible to power a device with the LCD screen turned off since the various output
sockets are connected to battery via the main isolator switch and not via the smart
charger.
Refer to page 10 on how to use the AC outlet. Details of other outlets are on page 13.
Please note fuses for outlets are underneath the lid. If the battery cables are corrected
in reverse polarity this will blow the 10A fuse marked “main” under the lid.
WARNING - If charging Engel Smart Battery Box from vehicle using car charging
lead (refer to page 2) and powering a fridge at the same time ensure fridge is not
earthed to vehicle chassis.
Overview of Charging Process:
The Engel Smart Battery Box seven stage smart charger is based on an advanced
software program that monitors your battery. Smart charge will select from the
following cycles to optimise your battery’s performance.
Stage 1: Testing - Checks the battery capacity when the Engel Smart Battery Box is first
turned on and predicts the hours left until fully charged.
Stage 2: Charge - commences recovery of battery back to peak voltage. Charges the
battery up to a set voltage at which point the battery is approximately 95% charged.
Please note if you are using an external charging source (e.g. solar panel) the screen
will show “external cycle” after a few minutes of charging since the internal smart
charger is bypassed.
Stage 3: Bulk - Period just before boost when volts are constant.
Stage 4: Boost - Peak charge for maximum performance. Battery is charged for 1.5
hours at constant voltage. At the end of boost the battery is 100% charged.
Stage 5: Resting - Allows the battery to consolidate after boost. The Engel Smart
Battery Box ceases charging and allows the battery to rest while allowing voltage to
drop to float voltage.
Stage 6: Float - Maintains performance and prolongs battery life. Battery is continually
monitored and voltage is maintained at 13.5V (13.7V for lithium iron phosphate) by
automatically adjusting charge current for 500 hours.
Stage 7: Re-Awaken - Exercising the battery and avoiding sulphation build-up. After
500 hours of conditioning the charger automatically returns to charge cycle.
Charging the Battery using Solar Panels (not supplied)
You can charge the battery via the external terminals using a solar panel array. To
do this the isolator switch must be in the ‘on’ position. The smart charge PCB will be
bypassed with this configuration so there will be no control over battery voltage. It is
important to use an external voltage regulator (not supplied) when using solar panels.
The main data screen will show “external cycle” after a few minutes of charging. In this
case the time left figure is not displayed and the normal charging stages are bypassed.
Charging the Battery with an External Charger using the
External Terminals or Accessory Sockets
Connecting the battery via the external terminals or accessory sockets to an external
charging source can be done as long as your charging source is regulated. The reason
is because this method bypasses the internal smart charger. The main data screen will
show “external cycle” after a few minutes of charging in this case.
Fuse information
Fuse for 240V inverter
Fuse for cigarette socket 2
Fuse for cigarette socket 1
Main fuse for smart charger
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