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Summary of Contents for Megatank ENERTEC GL48100
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Page 2: General Instructions
GL48100 User & Installation Manual General instructions This manual contains important instructions for our GL48100 battery storage system. This manual includes all the information related to GL48100’s specifications, interface, and user guide. Please read this manual carefully before installing your equipment and retain it for future reference. Compatible inverter Model GL48100... - Page 3 Ports Ports are concealed within the left and right handle covers of GL48100. Low voltage ports are on the left side, while high-voltage ports are on the right.Please open the handle covers to connect the power & communication cables. High-voltage port Low-voltage port RESET Reset button...
- Page 4 Ports We recommend using CAN communication between GL48100 and your inverter. Some inverters on the market have both RS485 and CAN ports. If your installer uses the CAN port for communication with the GL48100, please disconnect the RS485 network cables to avoid potential communication loss between the GL48100 and your inverter.
- Page 5 The indicators When your GL48100 is on, the RUN indicator blinks green every second. If an alarm occurs, the ALARM indicator blinks red every second your GL48100 can still be charged if the alarm indicator blinking red, but discharging may be limited under certain conditions (low battery percentage).
- Page 6 The charging alarm & protection indicator When Alarm & Protection Conditions Indicator Note Battery voltage Higher charging voltage ≥ 56.8V negatively affects battery life. Over-voltage protection Off Please adjust your inverter's Cell voltage ≥ 3.65V parameters accordingly. Blinking You can still charge/discharge Over- current alarm ≥...
- Page 7 The Alarm & Protection indicator (Discharging) When Alarm & Protection Conditions Note Indicator Battery voltage ≤ 46.4V Low-voltage alarm Cell voltage ≤ 2.8V Please charge your battery Blinking red immediately. Low battery procentage ≤ 10% alarm(Low SOC) Battery voltage ≤ 44.8V Low-voltage GL48100 stop discharging and enter protection...
- Page 8 The inverter settings For a safe, stable, and reliable home energy storage system, please follow the table below to configure your inverter's output power and GL48100 quantity. The maximum quantity for GL48100 should not exceed 15 units. Inverter Output Power(kW) 5-6kW 6-8kW 8-10kW...
- Page 9 Inverter Settings Note Parameters Charging current When using only one GL48100, we recommend a charging current of 50A, with a maximum current of less than 70A, to prevent battery life reduction due to high current in low-temperature situations. When using multiple battery systems in parallel, please set the charging current = 50A ×...
- Page 10 A note about 49.5V settings(When the communication between the inverter and GL48100 is lost) As mentioned earlier, the discharge cut-off voltage of 49.5V is just a reference value. Please adjust it according to actual load requirements. For a discharging current of around 50A (2.5kW output), use 49.5V. If the current is less than 50A, set the voltage to >49.5V.
- Page 11 Wall-mounting installation - One GL48100 Floor-mounting installation - Three GL48100 Recommended inverter -GL48100 power cable size: The power cable size: 25mm² (or 4AWG) Silicone Rubber Cabling (200°C 600V) 16mm² (or 6 AWG) Silicone Rubber Cabling (200°C 600V) Recommended flammability standard:VW-1 or UL94-V0. Temperature continuously usage >125°C Note: 1.
- Page 12 The wall-mounting installation Phillips screws with spring washer & flat Wall-mounting bracket 1 washer, button head M4*10 Phillips screws with spring washer and flat Wall-mounting bracket 2 washer, button head M6*12 Sleeve anchor M6*50 Wall-mounting bracketing 1 Recommended inverter -GL48100 power cable size: The power cable size: 25mm²...
- Page 13 The floor-mounting installation Wall-mounting bracket Sleeve anchor M6*50 Master -1000 Phillips screws with spring washer and flat washer, button head M4*10 GL DC junction box Slave1- 0100 Battery Base (Optional) The DC junction box Slave2 - 1100 M4×16 with spring & flat washer The hole drilling reference M6×12 with spring &...
- Page 14 The Parallel operation address table If you only have one GL48100, please keep the default address as 0000. This address table is only used for parallel operations. No. Address Details Note 1000 ON OFF OFF OFF Master 0100 OFF ON OFF OFF Slave 1 1100 ON OFF OFF...
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Page 15: Usage Precautions
Storage During transportation, avoid violent vibrations, shocks, or pressure. Charge the battery system to 50% capacity for long-term storage. Perform a charging/discharging cycle with a 50A current monthly, using 49.5V instead of 44.8V. After the cycle, charge and discharge the battery system with a 50A current, then stop charging. Store the battery system at temperatures between 0°C and 35°C (not exceeding 40°C), with 45%-85% relative humidity, and atmospheric pressure of 70kPa - 106kPa.
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