• Your Android / iOS mobile device must support Bluetooth® 4.0 and Bluetooth® Low Energy
(BLE). The iOS version requires iOS 10.0 or later and is compatible with iPhone, iPad, and
iPod touch. The Android version requires Android 4.3 (Jelly Bean) and up. Additionally, the
Android version must have permission to access both Location and Local Storage.
• Please note that the app is provided “as is” to serve as a free troubleshooting tool. Also,
please be aware that a good voltmeter provides a more accurate voltage reading than the
Bluetooth application.
10. Is there a desktop or Wi-Fi application to connect to
the batteries?
• No, there isn’t a Wi-Fi application for the HLX+, and there isn’t a desktop application for the
HLX+
11. What do I do if my inverter does not have an AC char-
ger?
• Use a 12 V AC charger (capable of charging up to 14.1 V) connected to a generator or the
utility company’s power to charge each battery. We recommend the Iota Engineering DLS
series of 12 V AC Chargers that are capable of being configured for this slightly higher
voltage.
• Use a 12 V solar charge controller (set to 14.1 V or ‘sealed battery’ charging, as long as it
gets to 14.1 V) with a solar panel to charge up the batteries individually. This method will
take longer than an AC charger unless you are using a high amperage charge controller
with sufficient solar panels.
12. Why is the battery turning on and off when it is con-
nected to a simple battery monitor?
• The HLX+ needs at least a 250mA load or they will go into their power saving, standby
mode. The simplest solution is to connect additional loads to reach at least 250mA (3
Watts).
13. Why does the battery voltage momentarily drop when
a load is initially connected?
• This is the normal result of the battery switching from its pre-charge function to providing
enough current to devices that have input capacitors and draw high current surges in an
extremely short period of time. The battery will resume its normal voltage within a few
seconds.
14. Why isn’t the battery working when it is connected to
the inverter?
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