The SUN-BATT-5.32R is a lithium battery designed for residential energy storage applications, intended to work in conjunction with a 48V battery hybrid inverter. It is not suitable for life-sustaining medical devices. The battery incorporates a built-in Battery Management System (BMS) that monitors and manages cell information, including voltage, current, and temperature. The BMS also balances cell charging to extend cycle life and provides protection functions against over-discharge, over-charge, over-current, and high/low temperatures, automatically managing charge, discharge, and balance states. Multiple SUN-BATT-5.32R units can be connected in parallel to expand capacity and power, with a maximum of eight batteries in parallel.
Important Technical Specifications
Performance:
- Nominal Voltage: 51.2 Vdc
- Nominal Capacity: 104 Ah
- Battery Energy: 5320 Wh
- Charge Voltage: 55.68–56.16 Vdc
- Discharge Voltage: 45.6–56.16 Vdc
- Nominal Charge/Discharge Current: 50 A
- Nominal Charge/Discharge Power: 2500 W
- Max Charge/Discharge Current: 100 A
- Max Charge/Discharge Power: 5000 W
- Short Circuit Current: 350 A
Communication:
- Display: SOC status indicator, LED indicator
- Communication Interfaces: RS232, RS485, CAN
General Specification:
- Dimension (W×D×H): 440×550×130 mm
- Weight: 46 kg
- Installation: Rack-Mounted, Wall-Mounted, or Cabinet-Mounted
- Working Temperature: -20°C ~ 60°C
- Storage Temperature:
- ≤25°C: 12 months
- ≤35°C: 6 months
- ≤45°C: 3 months
- Operating/Storage Humidity: ≤ 95%RH
- Max Operating Altitude: ≤ 2000m
- IP Rating: IP20
- Cell Technology: LiFePO4 Lithium Iron Phosphate
- Cycle Life: 6000 Cycles @ 80% DOD / 25°C / 0.5C, 60% EOL
- Scalability: Max 8 batteries in parallel
Standard Compliance:
- PACK: UN38.3, IEC62619, IEC61000
- CELL: UN38.3, IEC62619, UL 1642, JET (more available upon request)
Ordering and Deliverable Part:
- SUN-BATT-5.32R Battery
- SUN-BATT-5.32R Power cable
- SUN-BATT-5.32R Parallel cable
Usage Features
Interface Introduction:
The battery features a front panel with an ON/OFF rocker switch, an ON/OFF button, and LED indicators.
- LED Indicator Definition:
- L1 to L6: Show battery State of Charge (SoC).
- L7/L8: Show battery status (RUN/ALM).
- Flash 1: 0.25s light / 3.75s off
- Flash 2: 0.5s light / 0.5s off
- Flash 3: 0.5s light / 1.5s off
- CAN / RS485 Port (RJ45): Connects to the inverter, following CAN / RS485 protocol. Pin definitions include RS485-B, RS485-A, CANH, CANL, and GND.
- RS232 Port (RJ45): Follows RS232 protocol, used for debugging or service by manufacturers or professional engineers. Pin definitions include GND, RS232_TX, and RS232_RX.
Switch ON/OFF:
- Switch ON (Single Battery): Switch ON the rocker switch, then long-press the ON/OFF button (more than 3 seconds) on the front panel. LEDs will flash, and the battery will operate normally, showing SoC (L1-L6) and status (L7/L8).
- Switch ON (Multiple Batteries in Parallel): Switch ON the rocker switch on all batteries. Long-press the ON/OFF button of the MASTER battery (more than 3 seconds). LEDs will flash, and the battery system will automatically encode and assign IDs to each slave battery, then operate normally.
- Switch OFF (Single Battery): Switch OFF the rocker switch.
- Switch OFF (Multiple Batteries in Parallel): Press the start button of the Master PACK for more than 3 seconds and then release it; the master pack will shut down after all slave packs shut down (Sleep mode). Then, switch OFF the rocker switch on the MASTER battery first, followed by all slave batteries.
Installation:
The SUN-BATT-5.32R can be installed in rack-mounted, wall-mounted, or cabinet-mounted configurations.
- Checking Before Installation: Inspect outer packing materials for damage. If damage is found, contact the dealer before unpacking. Remove packing materials within 24 hours of installation.
- Checking Deliverables: After unpacking, verify that all components (battery, support frame, handles, M48 screws, M650 screws, manual, test report, certificate for rack-mounted; hanging bracket, wall bracket, M860 expansion bolts, M420 screws, M6*16 screws for wall-mounted) are intact and complete.
- Tools Required: Knife, measuring tape, socket wrench (10/16mm), rubber mallet, cross screwdriver, hammer drill (8mm), ESD gloves, safety goggles, anti-dust respirator, safety shoes.
- Installation Environment Requirements:
- Install indoors.
- Place in a secure location away from children and animals.
- Avoid heat sources and sparks.
- Do not expose to moisture, liquids, or direct sunlight.
- Installation Carrier Requirements:
- Mount only on fire-resistant buildings.
- Ensure the wall/ground can meet the load-bearing requirements due to the battery's weight.
- Installation Steps (Rack Mounted):
- Remove the handle from the battery.
- Install support frames at the four corners of the battery using M4*8 screws.
- Stack batteries with support frames using M6*50 fastening plates.
- Installation Steps (Wall Mounted):
- Drill holes (10mm drill bit) according to the specified dimensions (260mm width, 160mm height, with 150mm minimum mounting distance between batteries) and fix the wall bracket.
- Install the hanging bracket (M6*16) on the battery.
- Hang the battery on the wall bracket and tighten it with M4*20 fastening plates.
Battery Power and Communication Connections:
- Wiring Steps:
- Connect the battery to ground.
- Connect the battery power line (P- and P+ terminals).
- Connect the communication lines (RS232, CAN ports).
- Parallel Cascade Connection:
- Power Cable Wiring: Each battery has two pairs of P+ and P- terminals with identical functions.
- Single Module: Any terminal pair can be used.
- Parallel System: One battery acts as the Master, others as Slaves.
- Master P+ terminal connects to the PCS (Power Conversion System); the other P+ connects to another battery for capacity expansion.
- Last Slave P- terminal connects to the PCS; the other P- connects to another battery.
- For other Slave packs, each P terminal connects to another battery's terminal.
- Note: The connection to protection devices should use the P+ terminal from the Master pack and the P- terminal from the last Slave pack.
* Communication Cable Connections: The Master battery automatically identifies Slaves via internal software. Port In and Port Out (RJ45) are integrated with the automatic coding function.
- Master CAN communication port connects to the PCS.
- Master Port In should not be connected.
- Master Port Out connects to the first Slave's Port In using a parallel communication wire.
- First Slave Port Out connects to the second Slave's Port In.
- This pattern continues for all Slave packs.
- The Port Out of the last Slave pack should not be connected.
Maintenance Features
Recharge Requirements During Normal Storage:
- Batteries should be stored in an environment with temperatures between -10°C and +45°C.
- Regularly maintain the battery by charging it at 0.5C (25A) until 40% SoC after long storage periods.
- Storage Conditions:
- Below -10°C / Above 45°C: Prohibited storage.
- -10~25°C (5%~70% RH): ≤12 months storage, maintain 30%≤SoC≤60%.
- 25~35°C (5%~70% RH): ≤6 months storage, maintain 30%≤SoC≤60%.
- 35~45°C (5%~70% RH): ≤3 months storage, maintain 30%≤SoC≤60%.
Recharge Requirements When Over Discharged:
- An over-discharged (90% DoD) battery must be recharged according to the following table to prevent damage.
- Recharge Conditions:
- -10~25°C: Recharge within ≤15 days. Battery Pack disconnected from PCS.
- 25~35°C: Recharge within ≤7 days. Battery Pack disconnected from PCS.
- 35~45°C: Recharge within <12 hours. Battery Pack connected to PCS.
Please Note:
- Operating current derating occurs based on cell voltage and battery temperature.
- Charge/discharge derating occurs when the operating temperature is between -10°C to 5°C and 45°C to 55°C.
- Conditions apply; refer to the SUN-BATT-5.32R Warranty Letter for full details.
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