Introduction The AES BLUE is a battery that can operate independently or in a battery bank configuration where multiple batteries are connected in parallel. 1 . AUDIENCE, MESSAGES, WARNINGS, GENERAL SAFETY, PERSONAL PROTECTIVE EQUIPMENT 1 .1 Audience Configuration, installation, service, and operating tasks should only be performed by qualified personnel in consultation with local authorities having jurisdiction and authorized dealers.
1 .3 General Warnings Do not crush, disassemble or dispose of the battery in fire or the garbage. This product is made of recyclable materials and must be recycled. WARNING ELECTRIC SHOCK AND FIRE HAZARD • This equipment must only be installed as specified. •...
CAUTION ELECTRIC SHOCK HAZARD • Do not touch the energized surfaces of any electrical component in the battery system. • Before servicing the battery, follow all procedures to fully de-energize the battery system. • Follow the “Safe Handling Procedures” below when working with the battery. Failure to follow these instructions may result in injury.
1 .5 Personal Protective Equipment When handling or working near a battery: • Use Personal Protective Equipment, including clothing, glasses, insulated gloves, and boots. • Do not wear metal rings, watches, bracelets, or necklaces. 1 .6 Emergency Procedure Unusual Odor •...
3 . SPECIFICATIONS All specifications in this document are published @25ºC / 77ºF . 3 .1 Electrical Specifications Table 3-1, AES BLUE Electrical Specifications Electrical AES-B-G24-12V-H AES-B-G24-24V AES-B-GC12-12V-H AES-B-GC12-24V Specifications Nominal Voltage 12.8 V 25.6 V 12.8 V 25.6 V Energy 1280 Wh 1170 Wh...
3 .2 Mechanical Specifications Table 3-2, AES BLUE Mechanical Specifications Mechanical AES-B-G24-12V-H AES-B-G24-24V AES-B-GC12-12V-H AES-B-GC12-24V Specifications Chemistry LiFePO Total Length 262 mm (10.3 in) 312 mm (12.2 in) Body Width 175 mm (6.9 in) 177 mm (7 .0 in) Height 210 mm (8.3 in) 276 mm (10.8 in) Terminal...
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Protection AES-B-G24-12V-H AES-B-G24-24V AES-B-GC12-12V-H AES-B-GC12-24V Specifications Over-Charge Current Protection >110 A (±5 A) for >50 A (±2 A) for >160 A (±5 A) for >110 A (±5 A) for 10 seconds 10 seconds 10 seconds 10 seconds (2) (4) Recovery 32 seconds, or apply discharge current Over-Discharge Current (2) (5)
Fuse Overcurrent Protection Curve 10000 Legend 1000 80 A fuse 200 A fuse 250 A fuse 250 A fuse 200 A fuse 80 A fuse 0.01 1,000 1,250 1,500 1,750 2,000 2,250 2,500 2,750 Current [A] Figure 1. Fuse Overcurrent Protection Time Curve 3 .5 Internal Heating Specifications Heating is available on the following battery models.
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If the Max Charge Current or Max Discharge Current is exceeded for any battery in the system, the BMS in that battery will trigger the over-current protection and disconnect. The charging system’s maximum charge current must be below the operating limit of installed batteries or be curtailed. If the Recommended Charge Current is exceeded for multiple cycles, the battery is quicker to trigger the over-temperature protections and disconnect.
Table 3-8, AES-B-GC12-12V-H System Size Specifications Energy/ Reserve Peak Recommended Max Charge System Size Discharge Usable capacity at Current Charge Current Current Current Capacity 25 A 1 battery 375 A 150 A 100 A 150 A 2560 Wh 480 minutes 2 batteries 750 A 300 A...
The BMS reconnects when it hits recovery thresholds. If the BMS disconnects due to low-voltage protection, charging will allow the BMS to reconnect. A physical disconnect switch is recommended to reconnect the battery if the system has a constant parasitic draw. NOTE •...
6 .6 Internal Heating (AES-B-G24-12V-H, AES-B-GC12-12V-H) Both the AES Blue 12V models are equipped with internal heating. When the battery’s internal temperature is below 15°C (59°F) and the battery is connected to a charging source, a portion of the energy is diverted to the internal heating element to avoid the under-temperature fault.
7 . INSTALLATION WARNING ELECTRIC SHOCK AND FIRE HAZARD • This equipment must only be installed as specified. • Do not install the battery in series. • Do not disassemble or modify the battery. • If the battery case has been damaged, do not touch exposed contents. •...
4. Ventilation. Do not install in zero-clearance compartments. Maintain at least 50 mm (2 inches) above the top cover for open airflow. The area should include vents to allow airflow to the outdoors. 5. Orientation. Install the battery in any direction other than upside down. Do not install with the top of the battery pointing down.
7 .4 DC Protection CAUTION FIRE HAZARD Undersized fuses and disconnects may become overloaded and potentially cause a fire. Failure to follow these instructions may result in injury. To protect the system and DC battery cables, additional DC overcurrent protection and a DC disconnect are recommended.
Figure 4. Incorrect Installation (washer between cable lug and battery terminal) Figure 5. Incorrect Installation (cable lug angled against battery terminal) NOTICE • If any adjustments are made after installing the battery in its final destination, re- torque the terminals. •...
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7.6.1 Installation Procedure CAUTION ELECTRIC SHOCK AND FIRE HAZARD • Take precautions to avoid bridging the terminals. • Do not contact the terminals with metal mountings, fixtures, or body parts. Failure to follow these instructions may result in injury. Install equipment following the standards set by the local authority having jurisdiction.
7 .7 Parallel Battery Installation Procedure CAUTION FIRE HAZARD Use cables that meet specifications. Undersized cables can become hot and may potentially catch fire. Failure to follow these instructions may result in injury. Install equipment following the standards set by the local authority having jurisdiction.
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Preferred Connection Method: Busbar A busbar system is the recommended method of connecting multiple batteries in parallel. The busbar should be sized to handle the operating current of all the batteries, loads, and inverter-chargers. If you are unable to use the busbar connection method and are connecting four or fewer batteries in parallel, consider using the alternative connection method.
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12. Connect the load's positive ( + ) cable to the positive busbar, then the load’s negative ( - ) cable to the negative busbar. 13. Connect the charger’s positive ( + ) cable to the positive busbar, then the charger’s negative ( - ) cable to the negative busbar.
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9. Connect the load’s positive ( + ) cable then the load’s negative ( - ) cable to the opposite ends of the paralleled batteries. LOAD (–) LOAD (+) Figure 10. Load Connections 10. Connect the charger’s positive ( + ) cable then the charger’s negative ( - ) cable to the opposite ends of the paralleled batteries.
8 . OPERATION The BMS prevents battery operation outside of specified operating conditions. Understand each of these protections and how to set up the system accordingly. Refer to Table 3-4, AES BLUE Protection Specifications. NOTICE Intentional bypassing of the BMS to operate the battery outside of maximum and minimum limits voids the warranty.
8 .4 Charging Each electrical system has different characteristics and balance-of-system components. Modifications to charger settings may be required to optimize the system performance of each component. NOTICE • Always confirm that the charging device is incapable of producing transient spikes that exceed the published terminal voltage limits for the battery.
8.4.2 What to Use to Charge the Battery Use a Lithium LiFePO charger. Use a charger with a dedicated LiFePO charging algorithm that matches the AES Blue charging profile and parameters. For charging parameters refer to Table 3-1, AES BLUE Electrical Specifications Figure 12.
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8.5.1 Bulk Charge Bulk phase. The first phase of the charging process is the Bulk Charge, also referred to as the constant current phase. This phase is when the charger’s maximum current is directed to the battery until the desired voltage is reached. The Bulk phase will recharge the battery to approximately 90 to 95% SOC.
9 . BLUETOOTH A Bluetooth App for mobile devices provides real-time access to the battery state-of- charge, cell voltage, operating temperature, and a diagnostic report. Search for AES Blue on Apple’s App Store or Google Play. The App communicates with one battery only at a time. NOTICE The state of charge displayed by the AES BLUE app has an accuracy of ±5%.
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Table 11-1. AES BLUE Fuse Specifications Discover Service 960-0082 960-0081 960-0080 Part Number Applicable AES-B-G24-12V-H AES-B-GC12-24V AES-B-GC12-12V-H AES-B-G24-24V Battery Model Fuse Rating 32 V, 200 A 32 V, 250 A 32 V, 80 A Fuse Terminal 8 to 10 Nm (5.9 to 7 .4 ft-lb). DO NOT EXCEED 10 Nm (7.4 ft-lb).
• Allowing the battery to self-discharge below an open-circuit voltage of 3.0 VPC could cause irreversible damage and void the warranty. 13 . RELATED INFORMATION Find information about Discover Energy Systems at discoverlithium.com. For warranty information, see 885-0043 Discover AES BLUE Battery Warranty Policy.
14 . GLOSSARY OF TERMS, ABBREVIATIONS, AND ACRONYMS , Lithium Iron Phosphate Arc Flash Boundary LiFePO Battery Management System Root Mean Square Digital Multimeter State of Charge Depth of Discharge Volts Per Cell Bolted Fault Current...
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