Eflex Install Manual

Rev. 1.92
505 Keystone Rd, Southampton, PA 18966, USA . [phone]. [e-mail] .
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2.4 Charge/Discharge
❖ Do not use unqualified equipment for charging and discharging, please follow the correct
instructions for use
➢ Do not discharge the battery when the battery is depleted
➢ Do not charge or discharge batteries that are hot, deformed, or leaking.
❖ The output cable length of the battery should be less than 10 meters long
❖ Do not connect a power and load that exceed the power level to the two ends of the battery
❖ Do not mix different batteries
➢ Different manufacturers, chemistries, models, and lifespans cannot be paralleled
2.5 Charging notes
The battery must be transported, stored, and used in accordance with the instructions in this manual.
If any of the following improper operations occur, this product will cancel the free warranty.
If the following scenarios occur, the battery must be charged before use, otherwise the battery
damage caused is not covered by the free warranty:
❖ The battery has undergone long-term transportation or storage and has not been operated in
accordance with the supplementary power requirements.
❖ The battery is in a disabled or standby state for a long period of time during transportation or
storage.
❖ The battery was vented during use and reached under-voltage protection status. For more
than 30 days, the battery was not operated in accordance with the requirements of battery
recharge.
2.6 System sizing
Please refer to our sizing guide and warranty letter for appropriate sizes between various inverter models and
the eFlex. Using an inverter with a charging rate greater than the maximum charge rate of the batteries (total)
will trigger battery safety mechanisms.
Further precautions should be taken when adding charge controllers via DC coupling to ensure the inverter
and charge controllers do not charge the battery concurrently, when and if their combined charge current totals
are greater than the charge current of the combined battery bank. Take additional extra precautions when
using wind power to charge the battery, or if the inverter and charge controllers are not the same manufacturer.
Please contact Fortress Power tech support for help sizing the system.