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NOTICE
The battery module must be charged within 24 hours if discharged below 10% SOC.
Otherwise, irreversible damage to the battery module cells will occur in a very short
period of time and void the warranty.
NOTE
When the 48-48-5120-H battery cells are between -20°C (-4°F) and 5°C (41°F) and
connected to a charging source, energy is diverted from the charging source to the
internal heater until the battery cells reach 8°C (46.4°F). If the BMS triggered the Under-
temperature in Charge protection, the battery module will not allow charging until the
cell temperature is 2°C (36°F).
10.4 Charging Profile
When using open-loop charging, the Power Conversion device will require setting
up a charging profile. Using the controller of the Power Conversion device, set up
a charging configuration with a Lithium charge profile that matches the charge and
discharge settings. Refer to Table 3-1, ELEMENT ESS Electrical Specifications for
charging parameters.
Refer to the appropriate Application Note from www.discoverbattery.com for setting
up closed-loop parameters and integrating inverter-chargers and battery chargers.
100%SOC
Bulk Absorption Float
U1 Max
Absorption & Balancing
CURRENT
VOLTAGE
U2 Float
Bulk Vdc
I Max
I Min
Terminate at 2%-3% of
battery rated capacity
200 milliamps required for
balancing current
Figure 10. Charge Graph
NOTICE
• Charge with a Lithium charge profile matching the specifications for the ELEMENT
ESS battery module.
• Do not charge using a lead-acid charging profile. Charging using a lead-acid profile
will void the warranty.
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