Rentech 51.2V 150Ah Lithium-Ion Battery – (7.68kWh)

Rentech 51.2V Rack-Mounted Lithium-Ion Battery – 150Ah (7.68kWh) is designed for solar installations and back-up power in your Home and/or Office. This battery combines safe and reliable LFP prismatic cells with dedicated BMS to guarantee high reliability, safety and scalability.

The expected life cycle of the Rentech 51.2V Rack-Mounted Lithium-Ion Battery – 150Ah (7.68kWh) when installed, operated and maintained as per the manual is as follow:

• At <80% DOD, 6000 cycles
• At <90% DOD, 5000 cycles

It maintains consistent power and is equipped with a built-in overcharge protection.

Safety

• Automotive-grade pack technology and production process to guarantee safety
• Directional explosion-proof valve design to isolate rarely occurring cell failures, ensuring 100% safety
• Comprehensive thermal simulation and testing to control the temperature rise of each cell within the designed specification in the case of high-rate discharge

Battery Management System (BMS)

• Separate control and protection for the charge and discharge processess  to maximise system availability
• Real time detection of voltage, current, temperature, SOH, SOC and a variety of protection
• Support for parallel connection

Cell

• LFP prismatic cells with high safety and reliability
• Fully automated production following a mature and stable process, ensuring consistent charge / discharge performance and life span
• IEC62133, UL and UN38.3 certifications

Communication and Protocol

• RS485 and RS232 interfaces
• Optional accessories

Rentech 51.2V 150Ah Lithium-Ion Battery Technical Sheet

Rentech 51.2V 150Ah Lithium-Ion Battery User Manual

LiFePO4 Quick Start Guide

Model: BTESF48V150-R

Voltage: 51.2V 

Rated Capacity: 150Ah 

Total Energy: 7.68 KWh 

Recharge Voltage: 55,2V 

Dimensions (mm): (d) 442 x (w) 52.5 (h) 13,05 

Weight: 62,0kg 

• SAFETY 
  • Over voltage protections system 
  • Low voltage protection system 
  • High temperature protection 
  • Low temperature protection 
  • Short circuit protection 
  • Over current protection 

   

  BATTERY MANAGEMENT SYSTEM (BMS) 

  • Separate control and protection for the charge and discharge processes to maximize system availability 
  • Real-time detection of voltage, current, temperature, SOH, SOC and a variety of protection 
  • Support for parallel connection only 

   

  CELL 

  • Lithium Iron Phosphate (LFP) prismatic cells with high safety and reliability 
  • Fully automated production following a mature and stable process, ensuring consistent charge / discharge performance and life span 
  • IEC62133, UL and UN38.3 certifications 

   

  BENEFITS OF SOLAR BATTERIES 

   

  • Source of clean energy 
  • Reduced noise levels compared to generators 
  • Cost savings 
  • Uninterrupted electricity supply 

   

  CONSIDERATIONS WHEN CHOOSING SOLAR BATTERIES 

   

  Capacity and power ratings 

  • A battery’s capacity is the total amount of energy it can store, measured in kilowatt-hours (kWh). The power rating is the amount of electricity that a battery can deliver at one time, measured in kilowatts (kW). A battery with high capacity and low power rating will deliver a low amount of electricity for a long time. A battery with a low capacity and high-power rating can run an entire home or larger operation, but only for a few hours. 

   

  Depth of Discharge 

  • Most solar batteries need to retail some charge at all time due to their chemical composition and to prolong their lifespan. The DoD refers to the maximum of a battery’s capacity that should be used. For example, sealed lead-acid solar batteries are usually operated at  £ 50% DOD to achieve a reasonable cycle life, while lithium-ion batteries can operate at 80% DOD, 8kWh from a 10kWh battery, and still provide 5 years or more cycle life. 

   

  Round-trip efficiency 

  • Round-trip efficiency represents the amount of energy that can be used as a percentage of the amount of energy required to fully charge a battery. For example, if a 5kWh capacity battery, which delivers 4 kWh electricity, would typically require 110% to 120% times the 4kWh to be fully recharged. The battery has 80% to 90% in round-trip efficiency. One should, however, remember that the battery is part of the total system, and the system also has inefficiencies and energy losses. 

   

  Battery life and warranty 

  A battery’s ability to hold a charge gradually decreases the more it is used. For example, a battery might be warrantied for 5000 cycles or 10 years at 70% of its original capacity. This means that at the end of the warranty, the battery will have lost no more than 30% of its original ability to store energy. 

  Solar batteries come with warranties that guarantee a certain number of cycles and/or years of useful life. 

  This product has a 5-year warranty with a 10-year warranty option (refer to Rentech Lithium Warranty form)