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Summary of Contents for Renogy RBT1220LFP-TM-G1
- Page 1 RENOGY Deep Cycle Lithium Iron Phosphate Battery 12.8V 20Ah VERSION A0 RBT1220LFP-TM-G1 February 28, 2025 USER MANUAL...
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Page 2: Before Getting Started
Renogy is not responsible or liable for any failure, damage, or injury resulting from repair attempts by unqualified personnel, improper installation, or inappropriate operation. -
Page 3: Table Of Contents
Table of Contents Symbols Used ............................ 1 Introduction ............................1 Key Features ............................1 SKU ..............................1 What’s In the Box?..........................2 Required Tools & Accessories ......................2 Get to Know Deep Cycle Lithium Iron Phosphate Battery ............3 Dimensions ............................3 How to Size Battery Adapter Cables?..................... - Page 4 Checking Voltage ............................16 Storage ................................. 16 Important Safety Instructions ..................... 17 General ................................17 Battery Safety ..............................17 Renogy Support ..........................18...
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Page 5: Symbols Used
CAUTION: Indicates a critical procedure for safe and proper installation and operation. NOTE: Indicates an important step or tip for optimal performance. Introduction RENOGY 12.8V 20Ah Deep Cycle Lithium Iron Phosphate Battery is designed for the drop-in replacement of deep-cycle lead-acid batteries with its standard Battery Council International (BCI) group size. -
Page 6: What's In The Box
What’s In the Box? RENOGY 12.8V 20Ah Deep Cycle Lithium Iron Phosphate Battery × 1 RENOGY M6*1.25*10 mm Deep Cycle Lithium Iron Phosphate Battery 12.8V 20Ah VERSION A0 RBT1220LFP-TM-G1 February 28, 2025 USER MANUAL User Manual × 1 Terminal Bolt × 2 Make sure that all accessories are complete and free of any signs of damage. -
Page 7: Get To Know Deep Cycle Lithium Iron Phosphate Battery
Get to Know Deep Cycle Lithium Iron Phosphate Battery Lift Handle Positive Terminal (M6) Negative Terminal (M6) Lift Handle Dimensions 7.13 in (181 mm) 3.03 in (77 mm) 6.61 in (168 mm) 5.95 lbs / 2.7 kg Weight Dimension tolerance: ±0.2 in (0.5 mm) How to Size Battery Adapter Cables? Use appropriately sized Battery Adapter Cables (sold separately) based on expected loads. -
Page 8: Step 1. Plan A Mounting Site
Cable Gauge Size Ampacity Cable Gauge Size Ampacity 14 AWG (2.08 mm²) 1 AWG (42.41 mm²) 145A 12 AWG (3.33 mm²) 1/0 AWG (53.49 mm²) 170A 10 AWG (5.26 mm²) 2/0 AWG (67.43 mm²) 195A 8 AWG (8.37 mm²) 3/0 AWG (85.01 mm²) 225A 6 AWG (13.3 mm²) 4/0 AWG (107.22 mm²) -
Page 9: Step 2. Wear Insulating Gloves
Sufficient air flow must be provided to prevent excessive heat build-up and to minimize temperature variation between the connected batteries. This user manual takes a battery as an example to illustrate how to install the battery. Similar rules apply to scenarios involving multiple batteries. Step 2. -
Page 10: Step 5. Install Battery Terminals
Step 5. Install Battery Terminals Terminal Bolt 88.5 in·lbs Battery (10 N·m) Adapter Cable Battery Adapter Cable Ensure the cable lug and the top surface of the terminal are in contact, and place the washers on top of the lug. Do not place a washer between a battery terminal and a cable lug to avoid high resistance and excessive heating. -
Page 11: How To Connect Batteries In Series Or Parallel
█ For Batteries in Parallel Inverter DC-DC Battery Fuse Charger DC Distribution Charge Panel Controller █ For Batteries in Series Inverter DC-DC Battery Fuse Charger DC Distribution Charge Panel Controller How to Connect Batteries in Series or Parallel Calculate Battery Voltage and Current in Series and Parallel Connections The cables between each connected battery should be of equal length to ensure that all batteries can work equally together. -
Page 12: Balance Batteries Prior To Connection
Do not connect batteries with different chemistries, rated capacities, nominal voltages, brands, or models in parallel or in series. This can result in potential damage to the batteries and the connected devices, and can also pose safety risks. Avoid connecting batteries that have been purchased for more than half a year. Over time, batteries can degrade and their performance may decrease, which can affect their ability to deliver reliable power and may lead to safety hazards. -
Page 13: Series Connection Vs. Parallel Connection - Installation Steps
It is recommended to periodically rebalance the battery voltages every six months when connecting multiple batteries as a battery system. Slight voltage differences can occur among batteries over time due to factors like battery chemistry, capacity, temperature, and usage patterns. Series Connection vs. -
Page 14: Battery Cell Balancing
█ Parallel & Series Connection Battery System 24V (25.6V) 40Ah 2P2S Energy 1024Wh Battery System 48V (51.2V) 40Ah 2P4S Energy 2048Wh Battery System 24V (25.6V) 80Ah 4P2S Energy 2048Wh 4P4S Battery System 48V (51.2V) 80Ah (Max) Energy 4096Wh Battery Cell Balancing The battery employs bypass circuit to maintain the balance between each battery cell group. -
Page 15: Charging/Discharging Parameter Settings
Charging/Discharging Parameter Settings It is recommended that a single 12V 20Ah battery should be charged at 10A with a maximum allowable charging current at 20A. For single-battery scenarios, we recommend using 12V charge controllers rated at least 10A. For added safety and flexibility, a 12V 20A charge controller or battery charger is an ideal choice. -
Page 16: Discharging Logic
Lithium batteries are compatible with various charging methods, including MPPT charge controller, AC charger, and DC-DC charger. The crucial parameter setting for these chargers is to set the charge voltage, boost voltage, or bulk voltage at 14.2V (±0.2V). Do not overcharge or overdischarge the battery. Do not charge the battery at low temperatures below 32°F (0°C) and discharge the battery at high temperatures above 140°F (60°C). -
Page 17: Battery Management System
Battery Management System The battery is equipped with a Battery Management System (BMS) that provides warnings and protections against overvoltage, undervoltage, overcurrent, short circuit, high temperature, and low temperature conditions. Refer to the table below for the triggering and recovery conditions of each warning and protection. -
Page 18: Troubleshooting
Disconnect the battery from the charging triggered due to too high battery during source or loads as soon as possible. current passing through the charging or battery. discharging. For further assistance, contact Renogy technical support service at https:/ /www.renogy. com/contact-us. — 14 —... -
Page 19: Specifications
Specifications General Battery Cell Type Lithium Iron Phosphate Rated Capacity (0.5C, 25°C) 20Ah Nominal Voltage 12.8V Voltage Range 10V to 14.8V Cycle Life (0.5C, 25°C) 4000 Cycles (80% DOD) Dimension 7.13 x 3.03 x 6.61 in / 181 x 77 x 168 mm Weight 5.95 lbs / 2.7 kg Connection Method... -
Page 20: Cleaning
Cleaning Please clean the battery at regular intervals following the steps below: z Disconnect the battery from the system. z Clear the leaves and debris from the battery. z Clean the battery with a soft, lint-free cloth. The cloth can be dampened with water or mild soap and water if the battery is extremely dirty. -
Page 21: Important Safety Instructions
Important Safety Instructions Renogy accepts no liability for any damage caused by: z Force majeure including fire, typhoon, flood, earthquake, war, and terrorism. z Intentional or accidental misuse, abuse, neglect or improper maintenance, and use under abnormal conditions. z Improper installation, improper operation, and malfunction of a peripheral device. -
Page 22: Renogy Support
Questionnaire Investigation To explore more possibilities of solar systems, visit Renogy Learning Center at: renogy.com/learning-center For technical questions about your product in the U.S., contact the Renogy technical support team through: renogy.com/contact-us 1(909)2877111 For technical support outside the U.S., visit the local website below: Canada ca.renogy.com... -
Page 23: Fcc Radiation Exposure Statement
FCC Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation. - Page 24 Save 105 gallons of water from being consumed Renogy Power PLUS Renogy Power Plus allows you to stay in the loop with upcoming solar energy innova- tions, share your experiences with your solar energy journey, and connect with like-minded people who are changing the world in the Renogy Power Plus community.
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