The Solplanet Ai-HB 2.56LG is a high-voltage lithium-ion phosphate battery storage system designed to store excess PV power generated by an inverter-based PV system. This manual provides essential information for the installation, operation, and maintenance of the battery.
General Safety:
It is crucial to read and understand all safety precautions outlined in the manual and on the equipment. The document uses "DANGER," "WARNING," and "NOTICE" statements to highlight potential hazards.
- DANGER indicates a hazardous situation that, if not avoided, will result in serious injury and/or fire.
- WARNING indicates a hazardous situation that, if not avoided, will result in property loss and/or void the warranty.
- NOTICE indicates a normal situation that, if not avoided, will result in damage to the battery.
Always follow local laws and regulations during installation, operation, and maintenance.
Personal Safety:
Only trained and qualified professionals are permitted to install, operate, and maintain the battery equipment.
- Do not place the battery in areas accessible to children or pets.
- Avoid touching energized battery components or terminals, as the enclosure temperature may rise during operation.
- Do not stand on, lean on, or sit on the battery.
Electrical Safety:
- Before installation, ensure the equipment is complete and intact to prevent electric shocks or fire.
- Never connect or disconnect power cables when the battery is powered on.
- Ensure correct polarity when terminating cables to prevent electric arcs, fire, and personal injury.
- Do not connect batteries in series or with batteries from different manufacturers.
- Do not connect the battery directly to an AC power source, PV modules, or PV array.
- Do not connect batteries in parallel.
- Do not connect the battery to a faulty or non-Solplanet inverter.
- Avoid creating short circuits across positive and negative terminals.
- Ensure the grid is cut off and the battery is powered off before maintenance.
- Verify that the earth cable is securely connected before operation.
Environmental Safety:
- Install the battery in a dry, well-ventilated location, away from direct sunlight, rain, potential fire sources, and all sources of water.
- Do not expose the equipment to flammable gases and/or liquids.
- The operating and service life of the battery depends on the operating temperature. The recommended operating temperature range is 0°C to 30°C.
Transportation Safety:
- The products are UN38.3 certified and belong to class 9 dangerous goods. MSDS documents are available upon request from Solplanet.
- Protect the equipment packaging from rain, snow, submersion in water, falling, mechanical impact, or being upside-down/tilted.
Product Introduction:
The Ai-HB 2.56LG is a high-voltage battery storage system utilizing lithium-iron phosphate technology. Its primary function is to store surplus PV power generated by an inverter-based PV system.
Connection Interface:
The battery system includes several key connection points:
- P+ and P-: Positive and negative DC power connectors.
- Start Button: Used to power on/off the battery system. A long press (more than 5 seconds) turns the system on, illuminating LEDs L1-L5 (battery SOC) and L6 (battery status). Another long press turns it off.
- Main Switch: Controls the internal DC switch of the battery cluster.
- Link Com: RJ45 port for CAN/RS485/RS232 communication. This port connects the high-voltage box to the inverter, allowing the inverter to retrieve battery data such as SOC, DOD, and charge current. RS232 is for debugging and service.
- Pin Definitions for Link Com (RJ45):
- Pin 1: RS485-B (to PCS, reserved)
- Pin 2: RS485-A (to PCS, reserved)
- Pin 3: GND_2
- Pin 4: CANH (to PCS)
- Pin 5: CANL (to PCS)
- Pin 6: RS232_TX
- Pin 7: RS232_RX
- Pin 8: RS232_GND
- Link Power/Link in/Link out: Used for communication between battery piles. The battery pack closest to the inverter acts as the master, and others are subordinate.
LED Indicator Definition:
The front panel features LEDs (L1-L6) to indicate battery status:
- L1-L5: Show battery State of Charge (SOC).
- L6 (Fault): Indicates battery status.
- Flash 1 (0.25s light/3.75s off): Not defined in the table.
- Flash 2 (0.5s light/0.5s off): Not defined in the table.
- Flash 3 (0.5s light/1.5s off): Not defined in the table.
- Status Descriptions:
- Shut down: All LEDs OFF.
- Standby: L6 OFF, L1-L5 show battery level.
- Normal: L6 OFF, L1-L5 show battery level. The highest capacity indicator LED flashes (flash 2), others lighting.
- Charging: L6 OFF, L1-L5 Light. Turns to standby status when charger off.
- Full Charged: L6 Light, L1-L5 OFF. Stop charging.
- Protection (UVP): L6 OFF, L1-L5 OFF. Stop charging.
- Discharge Protection: L6 Light, L1-L5 OFF. Stop discharge.
- Fault: L6 Light, L1-L5 OFF. Stop charging and discharge.
Installation
Tools Required:
- Rubber mallet
- Star (Phillips) Screwdriver
- Hammer drill (10 mm)
- Antistatic gloves
- Safety goggles
- Anti-dust respirator
- Safety shoes
Checking Deliverables:
Upon unpacking, verify that all components are intact and complete according to the packing list.
- Battery Box (51.2V50Ah RAL5014 Pigeon blue): 1 unit
- Fixing plate (V1.0_50*45_t=2mm_stainless steel): 1 unit
- Phillips hexagon screw with three combination bolt (M4*8mm_8.8 level 304 stainless steel): 4 units
- Positioning pin (Ø 8*18.1_M5_Iron_Black): 4 units
- Moisture-proof desiccant (2g): 2 units
- M23 Self-locking 8-core 2_1_5_Double-pin 90° with cord (length 80±5mm): 1 unit
- HV Box (RAL5014 Pigeon blue): 1 unit
- Heavy-duty leveling screw leg (50M1050mm): 4 units
- Base (V1.0_60021090_t=2mm_SPCC_Pantone 433C_Fine sand lines): 1 unit
- Top cover (V1.0_60021050_t=1.5mm_SPCC_RAL5014 Pigeon blue_Fine sand lines): 1 unit
- L-shape wall hanging brace (V1.0_2156292_t=2mm_SPCC_RAL5014 Pigeon blue_Fine sand lines): 1 unit
- 50252mm stainless steel: 1 unit
- SPM-100_Black clamping ring plug rod: 4 units
- M23 Self-locking 8-core_2+1+5_4-hole flange socket_with gasket_12-foot short plug+M25 self-locking plug nut: 1 unit
- Wall plug (M8*60mm_8.8level 304 stainless steel): 3 units
- Phillips hexagon screw with three combination bolt (M6*12mm_8.8 level 304 stainless steel): 4 units
- Phillips slotted pan head screws (M5*20mm_8.8 level 304 stainless steel): 4 units
- Phillips hexagon screw with three combination bolt (M4*8mm_8.8 level 304 stainless steel): 4 units
- V1.0_PSRP6XC25XA_1 red 8AWG extra soft silicone wire (length 2000mm_EV10-12): 1 unit
- V1.0_PSRP6XA25XA_1 black 8AWG extra soft silicone wire (length 2000mm_EV10-12): 1 unit
- V1.0_RNB1.25-6_1 yellow-green two-color grounding wire BVR2.5_RNB1.25-6 (2 M): 1 unit
- V1.0_RJ45 Crystal plug elbow waterproof_UL_CAT5E_FTP_24AWG_L Black (2000mm_RJ45 crystal plug): 2 units
Installation Requirements:
- Install the battery indoors in a location compliant with local regulations.
- Ensure the battery is in a secure location, restricting access to children and animals.
- Avoid placing the battery near heat sources, moisture, liquids, or direct sunlight.
- Mount the battery only on fire-resistant building materials.
- Do not install batteries on flammable objects or building materials.
- Do not expose the battery to electrical sparks.
Installation Steps:
- Step 1: Place the base against the wall, maintaining a 30mm distance between the base and the wall.
- Step 2: Twist the dowel pins into the base and place the first battery module on top.
- Step 3: Secure the battery module to the base using the L-bracket.
- Step 4: Place subsequent battery modules on top of the previous one, securing them with support plates. Repeat until all modules are installed. Place the high-voltage box on top of the last module and secure it with a support plate bracket.
- Step 5: Attach the support bracket onto the high-voltage box.
- Step 6: Drill three holes in the wall, insert three screw plugs, and secure the support bracket to the wall with three screws.
- Step 7: Secure the lid of the high-voltage box with the provided screws.
- Step 8: Connect the small metal plates between each module.
- Step 9: Connect the power cables between the battery modules and the high-voltage box.
- Step 10: Connect the power cables (P+ and P-) to the inverter. Use consistent labels for all components.
- Step 11: Connect the first High-voltage box Link Com Terminal to the inverter's BMS port for communication.
- DANGER: Ensure power cables are installed with correct polarity to avoid dangerous situations.
- DANGER: Do not short circuit positive and negative terminals.
- CAUTION: Incorrect communication cable connection can lead to unexpected system operation and failure.
Commissioning Procedure
After all power and communication cables are connected, ensure the following:
- The DC switch on the inverter is OFF.
- The AC switch connected to the grid and EPS output (if used) of the inverter is OFF.
- The DC switch on the HV box is OFF.
For commissioning, follow these steps:
- Turn the DC switch on the HV box ON.
- Refer to section 2.3.2 "Start" for turning on the battery.
- Wait until the HV box LEDs illuminate.
- Wait until the inverter LEDs illuminate.
- Turn the DC switch on the inverter ON.
- Set up the battery and inverter using the Solplanet App (refer to the inverter and Solplanet app manual).
- Turn the AC switch connected to the grid and EPS output (if used) of the inverter ON.
Maintenance
Recharge Requirements During Normal Storage:
The battery should be stored in an environment with a temperature range of -10°C to +45°C. Regular maintenance includes recharging with 0.5C (51A) current until 100% SOC after long storage periods, according to the following table:
| Storage Environment Temperature |
Relative Humidity of Storage Environment |
Storage Time |
SOC |
| Below -10°C |
/ |
prohibit |
/ |
| -10~25°C |
5%~70% |
≤ 12 months |
SOC≥100% |
| 25~45°C |
5%~70% |
≤12 months |
SOC≥100% |
| Above 45°C |
/ |
prohibit |
/ |
Recharge Requirements When Over Discharged:
An over-discharged battery (90% DOD) must be recharged according to the following table to prevent damage:
| Storage Environment Temperature |
Storage Time |
Note |
| -10~25°C |
≤ 15 days |
Battery Pack disconnected from PCS |
| 25~35℃ |
≤7 days |
|
| -10~45°C |
< 12 hours |
Battery Pack connected to PCS |
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