○ The gap between the volts shown in HLX iT and the volts measured at the terminals can
be as large as 0.3 V, especially near the middle of a charge / discharge cycle. The gap
closes at the beginning and end of a cycle.
19. Why does HLX iT show my battery at 100% SoC when the battery voltage hasn’t reached 14 to 14.1
V? Why are my batteries showing different States of Charge (SoC) even though they are at the
same voltage?
○ The HLX+ SoC needs to be re-calibrated. Please try re-calibrating the battery SoC by doing
the Re-Commissioning process:
■ Charging the HLX all of the way up to 14.1 V. If the SoC reaches 100% before the
battery is at 14.1 V, please do not stop charging. Keep charging all of the way to
14.1 V.
■ Then Discharge the HLX all of the way to 12V.
■ Then re-charge the HLX normally, once again up to 14.1V.
○ The SoC should now be re-calibrated.
Remember, the SoC reported in the app is an approximation for people to use, but the battery behavior is
actually driven by the Volts and Amps.
20. My HLX+ is stuck in a protection mode. The voltage measured at the battery terminals is in the
single digits and it does not show up in the HLX iT app. How do I wake it up?
○ Press the HLX+ reset button for 5 seconds.
6 - Storage and Recommissioning
For long term storage (i.e. 6 months or more) simply disconnect all sources of charge and discharging
from the battery bank.
Although the batteries have a very low self discharge rate (≤2%/month, ≤12%/year) they should be charged
a minimum of every six months. Connecting a trickle charger is not recommended, unless the charger can
be configured to stop charging at 14.2V or below. Most trickle chargers are not smart enough to provide
this charge voltage ability. Over-charging the battery triggers the over-charge protection which shuts the
battery down until the voltage goes down enough by itself. Once that happens the trickle charger would
quickly raise the voltage up too high once again. As a result, the constant cycling of this circuitry will
shorten the life of the entire battery.
Recommended Storage Temperature and Humidity: 15°C to 35°C, 45% to 75% Relative Humidity.
They can be stored at 4°F to 113°F (-20°C to 45°C), 45% to 75% Relative Humidity for 1 month or less.
They can be stored at 14°F to 95°F (-10°C to 35°C), 45% to 75 Relative Humidity for 3 months or less.
Re-commissioning your HLX+ batteries is the same as commissioning them. Charge each battery up to
14.1 V.
If the ambient temperature is below 39°F (4°C), reduce the initial charge current to no greater than 30A for
the 1200, 60 A for the 2400, and 90A for the 3600 until the batteries have had a chance to warm up. If
the temperature is below 32°F (0°C), instead of charging, the heater will activate and warm the battery to
an internal temperature of 5°C (41°F).
7 - Specifications
These are HLX+ specifications. Please see the Operation section for charger and other equipment settings.
KiloVault
®
LLC • 330 Codman Hill Road, Boxborough, MA 01719 • +1 (888) 218-5924 • info@kilovault.com • www.kilovault.com
Revision 1.0, 06/2021
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