505 Keystone Rd, Southampton, PA 18966, USA
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(877) 497 6937
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www.fortresspower.com
9
When mounting the battery pack, take
note of the following details regarding
the Unit’s mounting plate:
Unit is approximately 138lbs.
Fortress recommends mounting the
unit onto metal struts/channels with a
Maximum Tensile Strength of at least
200 psi.
Use (6) M8 x 1.25mm bolts of at
least 35mm in length.
KEY POINTS SUMMARY:
1. Each Fortress Lithium Battery contains circuitry that protects the Lithium Ferro Phosphate cells from
overcharging, over-discharging, and excessive load amperage. If the values specified are exceeded,
the battery will enter a protective shut down state. In some cases, this may result in the need to re-
initialize an inverter charger or other pieces of equipment in the installation. In other cases, the inverter’s
system settings may be saved within the inverter memory storage and will not need to be reset. This is
not an absolute standard but is common among most inverter chargers. Check your inverter
manufacturer specifications.
2. If the battery enters a self-protective mode, negligible voltage readings will be present until the unit
is reset. In some instances, after a prolonged shut down, a charge might need to be manually applied
to the energy storage bank. Should this occur, please contact Fortress Power for technical support.
Fortress Lithium Batteries are designed to remain robust and safe under most circumstances.
3. Although each Fortress Lithium Battery contains circuitry that protects the Lithium Ferro Phosphate
cells from overcharging, over-discharging and excessive load amperage, Fortress Lithium Batteries
must always be installed with a charge controller and the appropriate settings to protect the batteries
from open PV and other high voltage sources. Fortress Lithium Batteries alone will not protect from
extreme electrical phenomena.
4. GRID TIED SYSTEMS: Once the Fortress Lithium Battery has been installed, turn on the entire
system to test. Once testing has been completed, please disconnect the batteries from the load center
until your local Utility Inspector is ready to turn on the entire system. The charge controllers and inverter
monitoring systems can drain the Fortress Lithium Batteries over an extended period when the entire
system is not fully operational due to the electrical draw of the system components.
5. OFF GRID SYSTEMS: Do not connect the Fortress Lithium Batteries until the entire system is ready
to turn on and is fully operational.
